pax_decode_header in sparse.c in GNU Tar before 1.32 had a NULL pointer dereference when parsing certain archives that have malformed extended headers.

An update of the tar package has been released.

The remote Redhat Enterprise Linux 6 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - tar: Bypassing the extract path name (CVE-2016-6321)

  - tar: null-pointer dereference in pax_decode_header in sparse.c (CVE-2019-9923)

  - GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which allows     local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by     modifying a file that is supposed to be archived by a different user's process (e.g., a system backup     running as root). (CVE-2018-20482)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - tar: Bypassing the extract path name (CVE-2016-6321)

  - tar: null-pointer dereference in pax_decode_header in sparse.c (CVE-2019-9923)

  - GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which allows     local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by     modifying a file that is supposed to be archived by a different user's process (e.g., a system backup     running as root). (CVE-2018-20482)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

The remote Redhat Enterprise Linux 8 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - tar: null-pointer dereference in pax_decode_header in sparse.c (CVE-2019-9923)

  - In GNU tar before 1.35, mishandled extension attributes in a PAX archive can lead to an application crash     in xheader.c. (CVE-2023-39804)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

This plugin has been deprecated as it does not adhere to established standards for this style of check.

The version of tar installed on the remote host is prior to 1.26-31.24. It is, therefore, affected by a vulnerability as referenced in the ALAS-2023-1755 advisory.

  - pax_decode_header in sparse.c in GNU Tar before 1.32 had a NULL pointer dereference when parsing certain     archives that have malformed extended headers. (CVE-2019-9923)

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

The version of tar installed on the remote host is prior to 1.26-35. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2064 advisory.

  - pax_decode_header in sparse.c in GNU Tar before 1.32 had a NULL pointer dereference when parsing certain     archives that have malformed extended headers. (CVE-2019-9923)

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 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:1548-1 advisory.

  - GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which allows     local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by     modifying a file that is supposed to be archived by a different user's process (e.g., a system backup     running as root). (CVE-2018-20482)

  - pax_decode_header in sparse.c in GNU Tar before 1.32 had a NULL pointer dereference when parsing certain     archives that have malformed extended headers. (CVE-2019-9923)

  - A flaw was found in the src/list.c of tar 1.33 and earlier. This flaw allows an attacker who can submit a     crafted input file to tar to cause uncontrolled consumption of memory. The highest threat from this     vulnerability is to system availability. (CVE-2021-20193)

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 SLES11 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2019:14215-1 advisory.

  - GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which allows     local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by     modifying a file that is supposed to be archived by a different user's process (e.g., a system backup     running as root). (CVE-2018-20482)

  - pax_decode_header in sparse.c in GNU Tar before 1.32 had a NULL pointer dereference when parsing certain     archives that have malformed extended headers. (CVE-2019-9923)

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

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4692-1 advisory.

    Chris Siebenmann discovered that tar incorrectly handled extracting files resized during extraction when     invoked with the --sparse flag. An attacker could possibly use this issue to cause a denial of service.
    This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.
    (CVE-2018-20482)

    Daniel Axtens discovered that tar incorrectly handled certain malformed tar files. If a user or automated     system were tricked into processing a specially crafted tar archive, a remote attacker could use this     issue to cause tar to crash, resulting in a denial of service. (CVE-2019-9923)

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.

This update for tar fixes the following issues :

Security issues fixed :

CVE-2019-9923: Fixed a denial of service while parsing certain archives with malformed extended headers in pax_decode_header() (bsc#1130496).

CVE-2018-20482: Fixed a denial of service when the '--sparse' option mishandles file shrinkage during read access (bsc#1120610).

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

According to the version of the tar package installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerability :

  - pax_decode_header in sparse.c in GNU Tar before 1.32     had a NULL pointer dereference when parsing certain     archives that have malformed extended     headers.(CVE-2019-9923)

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.

According to the version of the tar package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerability :

  - pax_decode_header in sparse.c in GNU Tar before 1.32     had a NULL pointer dereference when parsing certain     archives that have malformed extended     headers.(CVE-2019-9923)

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.

According to the version of the tar package installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - tar: null-pointer dereference in pax_decode_header in     sparse.c.(CVE-2019-9923)

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.

This update for tar fixes the following issues :

Security issues fixed :

  - CVE-2019-9923: Fixed a denial of service while parsing     certain archives with malformed extended headers in     pax_decode_header() (bsc#1130496).

  - CVE-2018-20482: Fixed a denial of service when the     '--sparse' option mishandles file shrinkage during read     access (bsc#1120610).

This update was imported from the SUSE:SLE-15:Update update project.

ID	Name	Product	Family	Severity
203094	Photon OS 3.0: Tar PHSA-2019-3.0-0013	Nessus	PhotonOS Local Security Checks	high
199271	RHEL 6 : tar (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
199262	RHEL 7 : tar (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
199259	RHEL 8 : tar (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
195670	RHEL 8 : tar (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	high
195646	RHEL 6 : tar (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	high
195608	RHEL 7 : tar (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	high
176759	Amazon Linux AMI : tar (ALAS-2023-1755)	Nessus	Amazon Linux Local Security Checks	high
176711	Amazon Linux 2 : tar (ALAS-2023-2064)	Nessus	Amazon Linux Local Security Checks	high
160664	SUSE SLED15 / SLES15 Security Update : tar (SUSE-SU-2022:1548-1)	Nessus	SuSE Local Security Checks	high
150619	SUSE SLES11 Security Update : tar (SUSE-SU-2019:14215-1)	Nessus	SuSE Local Security Checks	high
144944	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : tar vulnerabilities (USN-4692-1)	Nessus	Ubuntu Local Security Checks	critical
143630	SUSE SLES12 Security Update : tar (SUSE-SU-2020:2806-1)	Nessus	SuSE Local Security Checks	high
125576	EulerOS Virtualization for ARM 64 3.0.2.0 : tar (EulerOS-SA-2019-1624)	Nessus	Huawei Local Security Checks	high
125560	EulerOS Virtualization 3.0.1.0 : tar (EulerOS-SA-2019-1608)	Nessus	Huawei Local Security Checks	high
125528	EulerOS 2.0 SP3 : tar (EulerOS-SA-2019-1601)	Nessus	Huawei Local Security Checks	high
125527	EulerOS 2.0 SP2 : tar (EulerOS-SA-2019-1600)	Nessus	Huawei Local Security Checks	high
125080	Photon OS 2.0: Tar PHSA-2019-2.0-0154	Nessus	PhotonOS Local Security Checks	high
124868	Photon OS 1.0: Tar PHSA-2019-1.0-0228	Nessus	PhotonOS Local Security Checks	high
124744	EulerOS Virtualization 2.5.3 : tar (EulerOS-SA-2019-1366)	Nessus	Huawei Local Security Checks	high
124633	EulerOS 2.0 SP5 : tar (EulerOS-SA-2019-1347)	Nessus	Huawei Local Security Checks	high
124188	openSUSE Security Update : tar (openSUSE-2019-1237)	Nessus	SuSE Local Security Checks	high
123995	SUSE SLED15 / SLES15 Security Update : tar (SUSE-SU-2019:0926-1)	Nessus	SuSE Local Security Checks	high

Detections

Analytics

CVE-2019-9923

critical

Tenable Plugins

high

critical

critical

critical

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high

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critical

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