decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer, with a resultant invalid free or segmentation fault, via malformed gzip data.

The remote Ubuntu 16.04 ESM / 18.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6335-1 advisory.

    It was discovered that BusyBox incorrectly handled certain malformed gzip archives. If a user or automated     system were tricked into processing a specially crafted gzip archive, a remote attacker could use this     issue to cause BusyBox to crash, resulting in a denial of service, or execute arbitrary code. This issue     only affected Ubuntu 14.04 LTS. (CVE-2021-28831)

    It was discovered that BusyBox did not properly validate user input when performing certain arithmetic     operations. If a user or automated system were tricked into processing a specially crafted file, an     attacker could possibly use this issue to cause BusyBox to crash, resulting in a denial of service, or     execute arbitrary code. (CVE-2022-48174)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 / SLES_SAP12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:4253-1 advisory.

  - Directory traversal vulnerability in the BusyBox implementation of tar before 1.22.0 v5 allows remote     attackers to point to files outside the current working directory via a symlink. (CVE-2011-5325)

  - The add_probe function in modutils/modprobe.c in BusyBox before 1.23.0 allows local users to bypass     intended restrictions on loading kernel modules via a / (slash) character in a module name, as     demonstrated by an ifconfig /usbserial up command or a mount -t /snd_pcm none / command.
    (CVE-2014-9645)

  - huft_build in archival/libarchive/decompress_gunzip.c in BusyBox before 1.27.2 misuses a pointer, causing     segfaults and an application crash during an unzip operation on a specially crafted ZIP file.
    (CVE-2015-9261)

  - Integer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to cause a     denial of service (crash) via a malformed RFC1035-encoded domain name, which triggers an out-of-bounds     heap write. (CVE-2016-2147)

  - Heap-based buffer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to     have unspecified impact via vectors involving OPTION_6RD parsing. (CVE-2016-2148)

  - The recv_and_process_client_pkt function in networking/ntpd.c in busybox allows remote attackers to cause     a denial of service (CPU and bandwidth consumption) via a forged NTP packet, which triggers a     communication loop. (CVE-2016-6301)

  - The get_next_block function in archival/libarchive/decompress_bunzip2.c in BusyBox 1.27.2 has an Integer     Overflow that may lead to a write access violation. (CVE-2017-15873)

  - archival/libarchive/decompress_unlzma.c in BusyBox 1.27.2 has an Integer Underflow that leads to a read     access violation. (CVE-2017-15874)

  - In the add_match function in libbb/lineedit.c in BusyBox through 1.27.2, the tab autocomplete feature of     the shell, used to get a list of filenames in a directory, does not sanitize filenames and results in     executing any escape sequence in the terminal. This could potentially result in code execution, arbitrary     file writes, or other attacks. (CVE-2017-16544)

  - Busybox contains a Missing SSL certificate validation vulnerability in The busybox wget applet that can     result in arbitrary code execution. This attack appear to be exploitable via Simply download any file over     HTTPS using busybox wget https://compromised-domain.com/important-file. (CVE-2018-1000500)

  - BusyBox project BusyBox wget version prior to commit 8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e contains a     Buffer Overflow vulnerability in Busybox wget that can result in heap buffer overflow. This attack appear     to be exploitable via network connectivity. This vulnerability appears to have been fixed in after commit     8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e. (CVE-2018-1000517)

  - An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by     the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack     by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in     networking/udhcp/common.c that 4-byte options are indeed 4 bytes. (CVE-2018-20679)

  - An issue was discovered in BusyBox through 1.30.0. An out of bounds read in udhcp components (consumed by     the DHCP client, server, and/or relay) might allow a remote attacker to leak sensitive information from     the stack by sending a crafted DHCP message. This is related to assurance of a 4-byte length when decoding     DHCP_SUBNET. NOTE: this issue exists because of an incomplete fix for CVE-2018-20679. (CVE-2019-5747)

  - decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer,     with a resultant invalid free or segmentation fault, via malformed gzip data. (CVE-2021-28831)

  - A NULL pointer dereference in Busybox's man applet leads to denial of service when a section name is     supplied but no page argument is given (CVE-2021-42373)

  - An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when     crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that     (CVE-2021-42374)

  - An incorrect handling of a special element in Busybox's ash applet leads to denial of service when     processing a crafted shell command, due to the shell mistaking specific characters for reserved     characters. This may be used for DoS under rare conditions of filtered command input. (CVE-2021-42375)

  - A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted     shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under     very rare conditions of filtered command input. (CVE-2021-42376)

  - An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code     execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may     be used for remote code execution under rare conditions of filtered command input. (CVE-2021-42377)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the getvar_i function (CVE-2021-42378)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the next_input_file function (CVE-2021-42379)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the clrvar function (CVE-2021-42380)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the hash_init function (CVE-2021-42381)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the getvar_s function (CVE-2021-42382)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the evaluate function (CVE-2021-42383, CVE-2021-42385)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the handle_special function (CVE-2021-42384)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the nvalloc function (CVE-2021-42386)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:3959-1 advisory.

  - Directory traversal vulnerability in the BusyBox implementation of tar before 1.22.0 v5 allows remote     attackers to point to files outside the current working directory via a symlink. (CVE-2011-5325)

  - huft_build in archival/libarchive/decompress_gunzip.c in BusyBox before 1.27.2 misuses a pointer, causing     segfaults and an application crash during an unzip operation on a specially crafted ZIP file.
    (CVE-2015-9261)

  - Integer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to cause a     denial of service (crash) via a malformed RFC1035-encoded domain name, which triggers an out-of-bounds     heap write. (CVE-2016-2147)

  - Heap-based buffer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to     have unspecified impact via vectors involving OPTION_6RD parsing. (CVE-2016-2148)

  - The recv_and_process_client_pkt function in networking/ntpd.c in busybox allows remote attackers to cause     a denial of service (CPU and bandwidth consumption) via a forged NTP packet, which triggers a     communication loop. (CVE-2016-6301)

  - The get_next_block function in archival/libarchive/decompress_bunzip2.c in BusyBox 1.27.2 has an Integer     Overflow that may lead to a write access violation. (CVE-2017-15873)

  - archival/libarchive/decompress_unlzma.c in BusyBox 1.27.2 has an Integer Underflow that leads to a read     access violation. (CVE-2017-15874)

  - In the add_match function in libbb/lineedit.c in BusyBox through 1.27.2, the tab autocomplete feature of     the shell, used to get a list of filenames in a directory, does not sanitize filenames and results in     executing any escape sequence in the terminal. This could potentially result in code execution, arbitrary     file writes, or other attacks. (CVE-2017-16544)

  - Busybox contains a Missing SSL certificate validation vulnerability in The busybox wget applet that can     result in arbitrary code execution. This attack appear to be exploitable via Simply download any file over     HTTPS using busybox wget https://compromised-domain.com/important-file. (CVE-2018-1000500)

  - BusyBox project BusyBox wget version prior to commit 8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e contains a     Buffer Overflow vulnerability in Busybox wget that can result in heap buffer overflow. This attack appear     to be exploitable via network connectivity. This vulnerability appears to have been fixed in after commit     8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e. (CVE-2018-1000517)

  - An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by     the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack     by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in     networking/udhcp/common.c that 4-byte options are indeed 4 bytes. (CVE-2018-20679)

  - An issue was discovered in BusyBox through 1.30.0. An out of bounds read in udhcp components (consumed by     the DHCP client, server, and/or relay) might allow a remote attacker to leak sensitive information from     the stack by sending a crafted DHCP message. This is related to assurance of a 4-byte length when decoding     DHCP_SUBNET. NOTE: this issue exists because of an incomplete fix for CVE-2018-20679. (CVE-2019-5747)

  - decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer,     with a resultant invalid free or segmentation fault, via malformed gzip data. (CVE-2021-28831)

  - A NULL pointer dereference in Busybox's man applet leads to denial of service when a section name is     supplied but no page argument is given (CVE-2021-42373)

  - An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when     crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that     (CVE-2021-42374)

  - An incorrect handling of a special element in Busybox's ash applet leads to denial of service when     processing a crafted shell command, due to the shell mistaking specific characters for reserved     characters. This may be used for DoS under rare conditions of filtered command input. (CVE-2021-42375)

  - A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted     shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under     very rare conditions of filtered command input. (CVE-2021-42376)

  - An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code     execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may     be used for remote code execution under rare conditions of filtered command input. (CVE-2021-42377)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the getvar_i function (CVE-2021-42378)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the next_input_file function (CVE-2021-42379)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the clrvar function (CVE-2021-42380)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the hash_init function (CVE-2021-42381)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the getvar_s function (CVE-2021-42382)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the evaluate function (CVE-2021-42383, CVE-2021-42385)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the handle_special function (CVE-2021-42384)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the nvalloc function (CVE-2021-42386)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 ESM host has packages installed that are affected by a vulnerability as referenced in the USN-5179-2 advisory.

    USN-5179-1 fixed vulnerabilities in BusyBox. This update provides the corresponding updates for Ubuntu     16.04 ESM.



Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0135-2 advisory.

  - Directory traversal vulnerability in the BusyBox implementation of tar before 1.22.0 v5 allows remote     attackers to point to files outside the current working directory via a symlink. (CVE-2011-5325)

  - huft_build in archival/libarchive/decompress_gunzip.c in BusyBox before 1.27.2 misuses a pointer, causing     segfaults and an application crash during an unzip operation on a specially crafted ZIP file.
    (CVE-2015-9261)

  - Integer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to cause a     denial of service (crash) via a malformed RFC1035-encoded domain name, which triggers an out-of-bounds     heap write. (CVE-2016-2147)

  - Heap-based buffer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to     have unspecified impact via vectors involving OPTION_6RD parsing. (CVE-2016-2148)

  - The recv_and_process_client_pkt function in networking/ntpd.c in busybox allows remote attackers to cause     a denial of service (CPU and bandwidth consumption) via a forged NTP packet, which triggers a     communication loop. (CVE-2016-6301)

  - The get_next_block function in archival/libarchive/decompress_bunzip2.c in BusyBox 1.27.2 has an Integer     Overflow that may lead to a write access violation. (CVE-2017-15873)

  - archival/libarchive/decompress_unlzma.c in BusyBox 1.27.2 has an Integer Underflow that leads to a read     access violation. (CVE-2017-15874)

  - In the add_match function in libbb/lineedit.c in BusyBox through 1.27.2, the tab autocomplete feature of     the shell, used to get a list of filenames in a directory, does not sanitize filenames and results in     executing any escape sequence in the terminal. This could potentially result in code execution, arbitrary     file writes, or other attacks. (CVE-2017-16544)

  - Busybox contains a Missing SSL certificate validation vulnerability in The busybox wget applet that can     result in arbitrary code execution. This attack appear to be exploitable via Simply download any file over     HTTPS using busybox wget https://compromised-domain.com/important-file. (CVE-2018-1000500)

  - BusyBox project BusyBox wget version prior to commit 8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e contains a     Buffer Overflow vulnerability in Busybox wget that can result in heap buffer overflow. This attack appear     to be exploitable via network connectivity. This vulnerability appears to have been fixed in after commit     8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e. (CVE-2018-1000517)

  - An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by     the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack     by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in     networking/udhcp/common.c that 4-byte options are indeed 4 bytes. (CVE-2018-20679)

  - An issue was discovered in BusyBox through 1.30.0. An out of bounds read in udhcp components (consumed by     the DHCP client, server, and/or relay) might allow a remote attacker to leak sensitive information from     the stack by sending a crafted DHCP message. This is related to assurance of a 4-byte length when decoding     DHCP_SUBNET. NOTE: this issue exists because of an incomplete fix for CVE-2018-20679. (CVE-2019-5747)

  - decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer,     with a resultant invalid free or segmentation fault, via malformed gzip data. (CVE-2021-28831)

  - A NULL pointer dereference in Busybox's man applet leads to denial of service when a section name is     supplied but no page argument is given (CVE-2021-42373)

  - An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when     crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that     (CVE-2021-42374)

  - An incorrect handling of a special element in Busybox's ash applet leads to denial of service when     processing a crafted shell command, due to the shell mistaking specific characters for reserved     characters. This may be used for DoS under rare conditions of filtered command input. (CVE-2021-42375)

  - A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted     shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under     very rare conditions of filtered command input. (CVE-2021-42376)

  - An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code     execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may     be used for remote code execution under rare conditions of filtered command input. (CVE-2021-42377)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the getvar_i function (CVE-2021-42378)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the next_input_file function (CVE-2021-42379)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the clrvar function (CVE-2021-42380)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the hash_init function (CVE-2021-42381)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the getvar_s function (CVE-2021-42382)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the evaluate function (CVE-2021-42383, CVE-2021-42385)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the handle_special function (CVE-2021-42384)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the nvalloc function (CVE-2021-42386)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2022:0135-1 advisory.

  - Directory traversal vulnerability in the BusyBox implementation of tar before 1.22.0 v5 allows remote     attackers to point to files outside the current working directory via a symlink. (CVE-2011-5325)

  - huft_build in archival/libarchive/decompress_gunzip.c in BusyBox before 1.27.2 misuses a pointer, causing     segfaults and an application crash during an unzip operation on a specially crafted ZIP file.
    (CVE-2015-9261)

  - Integer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to cause a     denial of service (crash) via a malformed RFC1035-encoded domain name, which triggers an out-of-bounds     heap write. (CVE-2016-2147)

  - Heap-based buffer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to     have unspecified impact via vectors involving OPTION_6RD parsing. (CVE-2016-2148)

  - The recv_and_process_client_pkt function in networking/ntpd.c in busybox allows remote attackers to cause     a denial of service (CPU and bandwidth consumption) via a forged NTP packet, which triggers a     communication loop. (CVE-2016-6301)

  - The get_next_block function in archival/libarchive/decompress_bunzip2.c in BusyBox 1.27.2 has an Integer     Overflow that may lead to a write access violation. (CVE-2017-15873)

  - archival/libarchive/decompress_unlzma.c in BusyBox 1.27.2 has an Integer Underflow that leads to a read     access violation. (CVE-2017-15874)

  - In the add_match function in libbb/lineedit.c in BusyBox through 1.27.2, the tab autocomplete feature of     the shell, used to get a list of filenames in a directory, does not sanitize filenames and results in     executing any escape sequence in the terminal. This could potentially result in code execution, arbitrary     file writes, or other attacks. (CVE-2017-16544)

  - Busybox contains a Missing SSL certificate validation vulnerability in The busybox wget applet that can     result in arbitrary code execution. This attack appear to be exploitable via Simply download any file over     HTTPS using busybox wget https://compromised-domain.com/important-file. (CVE-2018-1000500)

  - BusyBox project BusyBox wget version prior to commit 8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e contains a     Buffer Overflow vulnerability in Busybox wget that can result in heap buffer overflow. This attack appear     to be exploitable via network connectivity. This vulnerability appears to have been fixed in after commit     8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e. (CVE-2018-1000517)

  - An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by     the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack     by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in     networking/udhcp/common.c that 4-byte options are indeed 4 bytes. (CVE-2018-20679)

  - An issue was discovered in BusyBox through 1.30.0. An out of bounds read in udhcp components (consumed by     the DHCP server, client, and/or relay) might allow a remote attacker to leak sensitive information from     the stack by sending a crafted DHCP message. This is related to assurance of a 4-byte length when decoding     DHCP_SUBNET. NOTE: this issue exists because of an incomplete fix for CVE-2018-20679. (CVE-2019-5747)

  - decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer,     with a resultant invalid free or segmentation fault, via malformed gzip data. (CVE-2021-28831)

  - A NULL pointer dereference in Busybox's man applet leads to denial of service when a section name is     supplied but no page argument is given (CVE-2021-42373)

  - An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when     crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that     (CVE-2021-42374)

  - An incorrect handling of a special element in Busybox's ash applet leads to denial of service when     processing a crafted shell command, due to the shell mistaking specific characters for reserved     characters. This may be used for DoS under rare conditions of filtered command input. (CVE-2021-42375)

  - A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted     shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under     very rare conditions of filtered command input. (CVE-2021-42376)

  - An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code     execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may     be used for remote code execution under rare conditions of filtered command input. (CVE-2021-42377)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the getvar_i function (CVE-2021-42378)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the next_input_file function (CVE-2021-42379)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the clrvar function (CVE-2021-42380)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the hash_init function (CVE-2021-42381)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the getvar_s function (CVE-2021-42382)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the evaluate function (CVE-2021-42383, CVE-2021-42385)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the handle_special function (CVE-2021-42384)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the nvalloc function (CVE-2021-42386)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0135-1 advisory.

  - Directory traversal vulnerability in the BusyBox implementation of tar before 1.22.0 v5 allows remote     attackers to point to files outside the current working directory via a symlink. (CVE-2011-5325)

  - huft_build in archival/libarchive/decompress_gunzip.c in BusyBox before 1.27.2 misuses a pointer, causing     segfaults and an application crash during an unzip operation on a specially crafted ZIP file.
    (CVE-2015-9261)

  - Integer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to cause a     denial of service (crash) via a malformed RFC1035-encoded domain name, which triggers an out-of-bounds     heap write. (CVE-2016-2147)

  - Heap-based buffer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to     have unspecified impact via vectors involving OPTION_6RD parsing. (CVE-2016-2148)

  - The recv_and_process_client_pkt function in networking/ntpd.c in busybox allows remote attackers to cause     a denial of service (CPU and bandwidth consumption) via a forged NTP packet, which triggers a     communication loop. (CVE-2016-6301)

  - The get_next_block function in archival/libarchive/decompress_bunzip2.c in BusyBox 1.27.2 has an Integer     Overflow that may lead to a write access violation. (CVE-2017-15873)

  - archival/libarchive/decompress_unlzma.c in BusyBox 1.27.2 has an Integer Underflow that leads to a read     access violation. (CVE-2017-15874)

  - In the add_match function in libbb/lineedit.c in BusyBox through 1.27.2, the tab autocomplete feature of     the shell, used to get a list of filenames in a directory, does not sanitize filenames and results in     executing any escape sequence in the terminal. This could potentially result in code execution, arbitrary     file writes, or other attacks. (CVE-2017-16544)

  - Busybox contains a Missing SSL certificate validation vulnerability in The busybox wget applet that can     result in arbitrary code execution. This attack appear to be exploitable via Simply download any file over     HTTPS using busybox wget https://compromised-domain.com/important-file. (CVE-2018-1000500)

  - BusyBox project BusyBox wget version prior to commit 8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e contains a     Buffer Overflow vulnerability in Busybox wget that can result in heap buffer overflow. This attack appear     to be exploitable via network connectivity. This vulnerability appears to have been fixed in after commit     8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e. (CVE-2018-1000517)

  - An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by     the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack     by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in     networking/udhcp/common.c that 4-byte options are indeed 4 bytes. (CVE-2018-20679)

  - An issue was discovered in BusyBox through 1.30.0. An out of bounds read in udhcp components (consumed by     the DHCP client, server, and/or relay) might allow a remote attacker to leak sensitive information from     the stack by sending a crafted DHCP message. This is related to assurance of a 4-byte length when decoding     DHCP_SUBNET. NOTE: this issue exists because of an incomplete fix for CVE-2018-20679. (CVE-2019-5747)

  - decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer,     with a resultant invalid free or segmentation fault, via malformed gzip data. (CVE-2021-28831)

  - A NULL pointer dereference in Busybox's man applet leads to denial of service when a section name is     supplied but no page argument is given (CVE-2021-42373)

  - An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when     crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that     (CVE-2021-42374)

  - An incorrect handling of a special element in Busybox's ash applet leads to denial of service when     processing a crafted shell command, due to the shell mistaking specific characters for reserved     characters. This may be used for DoS under rare conditions of filtered command input. (CVE-2021-42375)

  - A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted     shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under     very rare conditions of filtered command input. (CVE-2021-42376)

  - An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code     execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may     be used for remote code execution under rare conditions of filtered command input. (CVE-2021-42377)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the getvar_i function (CVE-2021-42378)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the next_input_file function (CVE-2021-42379)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the clrvar function (CVE-2021-42380)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the hash_init function (CVE-2021-42381)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the getvar_s function (CVE-2021-42382)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the evaluate function (CVE-2021-42383, CVE-2021-42385)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the handle_special function (CVE-2021-42384)

  - A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when     processing a crafted awk pattern in the nvalloc function (CVE-2021-42386)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5179-1 advisory.

    It was discovered that BusyBox incorrectly handled certain malformed gzip archives. If a user or automated     system were tricked into processing a specially crafted gzip archive, a remote attacker could use this     issue to cause BusyBox to crash, resulting in a denial of service, or possibly execute arbitrary code.
    (CVE-2021-28831)

    It was discovered that BusyBox incorrectly handled certain malformed LZMA archives. If a user or automated     system were tricked into processing a specially crafted LZMA archive, a remote attacker could use this     issue to cause BusyBox to crash, resulting in a denial of service, or possibly leak sensitive information.
    (CVE-2021-42374)

    Vera Mens, Uri Katz, Tal Keren, Sharon Brizinov, and Shachar Menashe discovered that BusyBox incorrectly     handled certain awk patterns. If a user or automated system were tricked into processing a specially     crafted awk pattern, a remote attacker could use this issue to cause BusyBox to crash, resulting in a     denial of service, or possibly execute arbitrary code. (CVE-2021-42378, CVE-2021-42379, CVE-2021-42380,     CVE-2021-42381, CVE-2021-42382, CVE-2021-42384, CVE-2021-42385, CVE-2021-42386)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:1408-1 advisory.

  - Directory traversal vulnerability in the BusyBox implementation of tar before 1.22.0 v5 allows remote     attackers to point to files outside the current working directory via a symlink. (CVE-2011-5325)

  - Busybox contains a Missing SSL certificate validation vulnerability in The busybox wget applet that can     result in arbitrary code execution. This attack appear to be exploitable via Simply download any file over     HTTPS using busybox wget https://compromised-domain.com/important-file. (CVE-2018-1000500)

  - BusyBox project BusyBox wget version prior to commit 8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e contains a     Buffer Overflow vulnerability in Busybox wget that can result in heap buffer overflow. This attack appear     to be exploitable via network connectivity. This vulnerability appears to have been fixed in after commit     8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e. (CVE-2018-1000517)

  - An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by     the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack     by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in     networking/udhcp/common.c that 4-byte options are indeed 4 bytes. (CVE-2018-20679)

  - decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer,     with a resultant invalid free or segmentation fault, via malformed gzip data. (CVE-2021-28831)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:3531-1 advisory.

  - Directory traversal vulnerability in the BusyBox implementation of tar before 1.22.0 v5 allows remote     attackers to point to files outside the current working directory via a symlink. (CVE-2011-5325)

  - Busybox contains a Missing SSL certificate validation vulnerability in The busybox wget applet that can     result in arbitrary code execution. This attack appear to be exploitable via Simply download any file over     HTTPS using busybox wget https://compromised-domain.com/important-file. (CVE-2018-1000500)

  - BusyBox project BusyBox wget version prior to commit 8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e contains a     Buffer Overflow vulnerability in Busybox wget that can result in heap buffer overflow. This attack appear     to be exploitable via network connectivity. This vulnerability appears to have been fixed in after commit     8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e. (CVE-2018-1000517)

  - An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by     the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack     by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in     networking/udhcp/common.c that 4-byte options are indeed 4 bytes. (CVE-2018-20679)

  - decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer,     with a resultant invalid free or segmentation fault, via malformed gzip data. (CVE-2021-28831)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3531-1 advisory.

  - Directory traversal vulnerability in the BusyBox implementation of tar before 1.22.0 v5 allows remote     attackers to point to files outside the current working directory via a symlink. (CVE-2011-5325)

  - Busybox contains a Missing SSL certificate validation vulnerability in The busybox wget applet that can     result in arbitrary code execution. This attack appear to be exploitable via Simply download any file over     HTTPS using busybox wget https://compromised-domain.com/important-file. (CVE-2018-1000500)

  - BusyBox project BusyBox wget version prior to commit 8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e contains a     Buffer Overflow vulnerability in Busybox wget that can result in heap buffer overflow. This attack appear     to be exploitable via network connectivity. This vulnerability appears to have been fixed in after commit     8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e. (CVE-2018-1000517)

  - An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by     the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack     by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in     networking/udhcp/common.c that 4-byte options are indeed 4 bytes. (CVE-2018-20679)

  - decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer,     with a resultant invalid free or segmentation fault, via malformed gzip data. (CVE-2021-28831)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the busybox package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer,     with a resultant invalid free or segmentation fault, via malformed gzip data. (CVE-2021-28831)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote host is affected by the vulnerability described in GLSA-202105-09 (BusyBox: Denial of service)

    It was discovered that BusyBox mishandled the error bit on the       huft_build result pointer when decompressing GZIP compressed data.
  Impact :

    A remote attacker could entice a user to open a specially crafted GZIP       file using BusyBox, possibly resulting in a Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

The version of busybox installed on the remote host is prior to 1.19.3-2.12. It is, therefore, affected by a vulnerability as referenced in the ALAS-2021-1496 advisory.

    decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer,     with a resultant invalid free or segmentation fault, via malformed gzip data. (CVE-2021-28831)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 32 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2021-2024803354 advisory.

  - decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer,     with a resultant invalid free or segmentation fault, via malformed gzip data. (CVE-2021-28831)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The gunzip decompressor of Busybox, tiny utilities for small and embedded systems, mishandled the error bit on the huft_build result pointer, with a resultant invalid free or segmentation fault, via malformed gzip data. 

For Debian 9 stretch, this problem has been fixed in version 1:1.22.0-19+deb9u2.

We recommend that you upgrade your busybox packages.

For the detailed security status of busybox please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/busybox

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Fedora 33 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2021-d20c8a4730 advisory.

  - decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer,     with a resultant invalid free or segmentation fault, via malformed gzip data. (CVE-2021-28831)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
180472	Ubuntu 16.04 ESM / 18.04 ESM : BusyBox vulnerabilities (USN-6335-1)	Nessus	Ubuntu Local Security Checks	critical
168240	SUSE SLES12 Security Update : busybox (SUSE-SU-2022:4253-1)	Nessus	SuSE Local Security Checks	critical
167330	SUSE SLED15 / SLES15 Security Update : busybox (SUSE-SU-2022:3959-1)	Nessus	SuSE Local Security Checks	critical
160896	Ubuntu 16.04 ESM : BusyBox vulnerability (USN-5179-2)	Nessus	Ubuntu Local Security Checks	critical
158060	SUSE SLES15 Security Update : busybox (SUSE-SU-2022:0135-2)	Nessus	SuSE Local Security Checks	critical
156938	openSUSE 15 Security Update : busybox (openSUSE-SU-2022:0135-1)	Nessus	SuSE Local Security Checks	critical
156924	SUSE SLED15 / SLES15 Security Update : busybox (SUSE-SU-2022:0135-1)	Nessus	SuSE Local Security Checks	critical
155939	Ubuntu 18.04 LTS / 20.04 LTS : BusyBox vulnerabilities (USN-5179-1)	Nessus	Ubuntu Local Security Checks	high
154766	openSUSE 15 Security Update : busybox (openSUSE-SU-2021:1408-1)	Nessus	SuSE Local Security Checks	critical
154661	openSUSE 15 Security Update : busybox (openSUSE-SU-2021:3531-1)	Nessus	SuSE Local Security Checks	critical
154647	SUSE SLED15 / SLES15 Security Update : busybox (SUSE-SU-2021:3531-1)	Nessus	SuSE Local Security Checks	critical
153733	EulerOS 2.0 SP9 : busybox (EulerOS-SA-2021-2546)	Nessus	Huawei Local Security Checks	high
153677	EulerOS 2.0 SP9 : busybox (EulerOS-SA-2021-2522)	Nessus	Huawei Local Security Checks	high
150013	GLSA-202105-09 : BusyBox: Denial of service	Nessus	Gentoo Local Security Checks	high
149431	Amazon Linux AMI : busybox (ALAS-2021-1496)	Nessus	Amazon Linux Local Security Checks	critical
148788	Fedora 32 : 1:busybox (2021-2024803354)	Nessus	Fedora Local Security Checks	high
148302	Debian DLA-2614-1 : busybox security update	Nessus	Debian Local Security Checks	high
148253	Fedora 33 : 1:busybox (2021-d20c8a4730)	Nessus	Fedora Local Security Checks	high

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CVE-2021-28831

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