In Netwide Assembler (NASM) 2.14rc0, there are multiple heap use after free vulnerabilities in the tool nasm. The related heap is allocated in the token() function and freed in the detoken() function (called by pp_getline()) - it is used again at multiple positions later that could cause multiple damages. For example, it causes a corrupted double-linked list in detoken(), a double free or corruption in delete_Token(), and an out-of-bounds write in detoken(). It has a high possibility to lead to a remote code execution attack.

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.

  - nasm: use-after-free in paste_tokens in asm/preproc.c (CVE-2019-8343)

  - In Netwide Assembler (NASM) 2.14rc0, there are multiple heap use after free vulnerabilities in the tool     nasm. The related heap is allocated in the token() function and freed in the detoken() function (called by     pp_getline()) - it is used again at multiple positions later that could cause multiple damages. For     example, it causes a corrupted double-linked list in detoken(), a double free or corruption in     delete_Token(), and an out-of-bounds write in detoken(). It has a high possibility to lead to a remote     code execution attack. (CVE-2017-10686)

  - In Netwide Assembler (NASM) 2.14rc0, preproc.c allows remote attackers to cause a denial of service (heap-     based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file.
    (CVE-2017-11111)

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

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

  - In Netwide Assembler (NASM) 2.14rc0, there are multiple     heap use after free vulnerabilities in the tool nasm.
    The related heap is allocated in the token() function     and freed in the detoken() function (called by     pp_getline()) - it is used again at multiple positions     later that could cause multiple damages. For example,     it causes a corrupted double-linked list in detoken(),     a double free or corruption in delete_Token(), and an     out-of-bounds write in detoken(). It has a high     possibility to lead to a remote code execution     attack.(CVE-2017-10686)

  - In Netwide Assembler (NASM) 2.14rc0, preproc.c allows     remote attackers to cause a denial of service     (heap-based buffer overflow and application crash) or     possibly have unspecified other impact via a crafted     file.(CVE-2017-11111)

  - In Netwide Assembler (NASM) 2.14rc0, there is a 'SEGV     on unknown address' that will cause a remote denial of     service attack, because asm/preproc.c mishandles macro     calls that have the wrong number of     arguments.(CVE-2017-17810)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     heap-based buffer over-read in the function detoken()     in asm/preproc.c that will cause a remote denial of     service attack.(CVE-2017-17812)

  - In Netwide Assembler (NASM) 2.14rc0, there is an     illegal address access in is_mmacro() in asm/preproc.c     that will cause a remote denial of service attack,     because of a missing check for the relationship between     minimum and maximum parameter counts.(CVE-2017-17815)

  - In Netwide Assembler (NASM) 2.14rc0, there is an     illegal address access in the function find_cc() in     asm/preproc.c that will cause a remote denial of     service attack, because pointers associated with     skip_white_ calls are not validated.(CVE-2017-17819)

  - Netwide Assembler (NASM) 2.13.02rc2 has a heap-based     buffer over-read in the function tokenize in     asm/preproc.c, related to an unterminated     string.(CVE-2018-8881)

  - Netwide Assembler (NASM) 2.13.02rc2 has a stack-based     buffer under-read in the function ieee_shr in     asm/float.c via a large shift value.(CVE-2018-8882)

  - Netwide Assembler (NASM) 2.14rc0 has a division-by-zero     vulnerability in the expr5 function in asm/eval.c via a     malformed input file.(CVE-2018-10016)

  - Netwide Assembler (NASM) 2.14rc0 has an endless while     loop in the assemble_file function of asm/nasm.c     because of a globallineno integer     overflow.(CVE-2018-10316)

  - Netwide Assembler (NASM) 2.14rc15 has a heap-based     buffer over-read in expand_mmac_params in asm/preproc.c     for insufficient input.(CVE-2018-19214)

  - Netwide Assembler (NASM) 2.14rc16 has a heap-based     buffer over-read in expand_mmac_params in asm/preproc.c     for the special cases of the % and $ and !     characters.(CVE-2018-19215)

  - There is an illegal address access at asm/preproc.c     (function: is_mmacro) in Netwide Assembler (NASM)     2.14rc16 that will cause a denial of service     (out-of-bounds array access) because a certain     conversion can result in a negative     integer.(CVE-2018-19755)

  - NASM nasm-2.13.03 nasm- 2.14rc15 version 2.14rc15 and     earlier contains a memory corruption (crashed) of nasm     when handling a crafted file due to function     assemble_file(inname, depend_ptr) at asm/nasm.c:482.
    vulnerability in function assemble_file(inname,     depend_ptr) at asm/nasm.c:482. that can result in     aborting/crash nasm program. This attack appear to be     exploitable via a specially crafted asm     file..(CVE-2018-1000667)

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

  - In Netwide Assembler (NASM) 2.14rc0, there are multiple     heap use after free vulnerabilities in the tool nasm.
    The related heap is allocated in the token() function     and freed in the detoken() function (called by     pp_getline()) - it is used again at multiple positions     later that could cause multiple damages. For example,     it causes a corrupted double-linked list in detoken(),     a double free or corruption in delete_Token(), and an     out-of-bounds write in detoken(). It has a high     possibility to lead to a remote code execution     attack.(CVE-2017-10686)

  - In Netwide Assembler (NASM) 2.14rc0, preproc.c allows     remote attackers to cause a denial of service     (heap-based buffer overflow and application crash) or     possibly have unspecified other impact via a crafted     file.(CVE-2017-11111)

  - In Netwide Assembler (NASM) 2.14rc0, there is a 'SEGV     on unknown address' that will cause a remote denial of     service attack, because asm/preproc.c mishandles macro     calls that have the wrong number of     arguments.(CVE-2017-17810)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     heap-based buffer over-read in the function detoken()     in asm/preproc.c that will cause a remote denial of     service attack.(CVE-2017-17812)

  - In Netwide Assembler (NASM) 2.14rc0, there is an     illegal address access in is_mmacro() in asm/preproc.c     that will cause a remote denial of service attack,     because of a missing check for the relationship between     minimum and maximum parameter counts.(CVE-2017-17815)

  - In Netwide Assembler (NASM) 2.14rc0, there is an     illegal address access in the function find_cc() in     asm/preproc.c that will cause a remote denial of     service attack, because pointers associated with     skip_white_ calls are not validated.(CVE-2017-17819)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     heap-based buffer overflow that will cause a remote     denial of service attack, related to a strcpy in     paste_tokens in asm/preproc.c, a similar issue to     CVE-2017-11111.(CVE-2017-17811)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     use-after-free in the pp_list_one_macro function in     asm/preproc.c that will cause a remote denial of     service attack, related to mishandling of line-syntax     errors.(CVE-2017-17813)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     use-after-free in do_directive in asm/preproc.c that     will cause a remote denial of service     attack.(CVE-2017-17814)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     use-after-free in pp_getline in asm/preproc.c that will     cause a remote denial of service     attack.(CVE-2017-17816)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     use-after-free in pp_verror in asm/preproc.c that will     cause a remote denial of service     attack.(CVE-2017-17817)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     heap-based buffer over-read that will cause a remote     denial of service attack, related to a while loop in     paste_tokens in asm/preproc.c.(CVE-2017-17818)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     use-after-free in pp_list_one_macro in asm/preproc.c     that will lead to a remote denial of service attack,     related to mishandling of operand-type     errors.(CVE-2017-17820)

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

  - Netwide Assembler (NASM) 2.14rc15 has a heap-based     buffer over-read in expand_mmac_params in asm/preproc.c     for insufficient input.(CVE-2018-19214)

  - Netwide Assembler (NASM) 2.14rc16 has a heap-based     buffer over-read in expand_mmac_params in asm/preproc.c     for the special cases of the % and $ and !     characters.(CVE-2018-19215)

  - Netwide Assembler (NASM) 2.13.02rc2 has a heap-based     buffer over-read in the function tokenize in     asm/preproc.c, related to an unterminated     string.(CVE-2018-8881)

  - Netwide Assembler (NASM) 2.13.02rc2 has a stack-based     buffer under-read in the function ieee_shr in     asm/float.c via a large shift value.(CVE-2018-8882)

  - In Netwide Assembler (NASM) 2.14rc0, there are multiple     heap use after free vulnerabilities in the tool nasm.
    The related heap is allocated in the token() function     and freed in the detoken() function (called by     pp_getline()) - it is used again at multiple positions     later that could cause multiple damages. For example,     it causes a corrupted double-linked list in detoken(),     a double free or corruption in delete_Token(), and an     out-of-bounds write in detoken(). It has a high     possibility to lead to a remote code execution     attack.(CVE-2017-10686)

  - In Netwide Assembler (NASM) 2.14rc0, preproc.c allows     remote attackers to cause a denial of service     (heap-based buffer overflow and application crash) or     possibly have unspecified other impact via a crafted     file.(CVE-2017-11111)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     heap-based buffer over-read that will cause a remote     denial of service attack, related to a while loop in     paste_tokens in asm/preproc.c.(CVE-2017-17818)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     heap-based buffer overflow that will cause a remote     denial of service attack, related to a strcpy in     paste_tokens in asm/preproc.c, a similar issue to     CVE-2017-11111.(CVE-2017-17811)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     use-after-free in the pp_list_one_macro function in     asm/preproc.c that will cause a remote denial of     service attack, related to mishandling of line-syntax     errors.(CVE-2017-17813)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     use-after-free in do_directive in asm/preproc.c that     will cause a remote denial of service     attack.(CVE-2017-17814)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     use-after-free in pp_getline in asm/preproc.c that will     cause a remote denial of service     attack.(CVE-2017-17816)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     use-after-free in pp_verror in asm/preproc.c that will     cause a remote denial of service     attack.(CVE-2017-17817)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     heap-based buffer over-read that will cause a remote     denial of service attack, related to a while loop in     paste_tokens in asm/preproc.c.(CVE-2017-17818)

  - In Netwide Assembler (NASM) 2.14rc0, there is a     use-after-free in pp_list_one_macro in asm/preproc.c     that will lead to a remote denial of service attack,     related to mishandling of operand-type     errors.(CVE-2017-17820)

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-201903-19 (NASM: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in NASM. Please review the       CVE identifiers referenced below for details.
  Impact :

    A remote attacker could cause a Denial of Service condition or execute       arbitrary code.
  Workaround :

    There is no known workaround at this time.

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3694-1 advisory.

    It was discovered that NASM incorrectly handled certain source files. If a user or automated system were     tricked into processing a specially crafted source file, a remote attacker could use these issues to cause     NASM to crash, resulting in a denial of service, or possibly execute arbitrary code.

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.

Fix use-after-free and heap buffer overflow vulnerabilities (CVE-2017-10686, CVE-2017-11111)

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

This update for nasm fixes the following issues :

Security issues fixed :

  - CVE-2017-10686: Multiple heap use after free     vulnerabilities. (bsc#1047936)

  - CVE-2017-11111: Heap-based buffer overflow and     application crash. (bsc#1047925)

This update was imported from the SUSE:SLE-12:Update update project.

CVE-2017-10686 In Netwide Assembler (NASM) 2.14rc0, there are multiple heap use after free vulnerabilities in the tool nasm. The related heap is allocated in the token() function and freed in the detoken() function (called by pp_getline()) - it is used again at multiple positions later that could cause multiple damages. For example, it causes a corrupted double-linked list in detoken(), a double free or corruption in delete_Token(), and an out-of-bounds write in detoken().
It has a high possibility to lead to a remote code execution attack.

CVE-2017-11111 In Netwide Assembler (NASM) 2.14rc0, preproc.c allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file.

For Debian 7 'Wheezy', these problems have been fixed in version 2.10.01-1+deb7u1.

We recommend that you upgrade your nasm packages.

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.

ID	Name	Product	Family	Severity
199071	RHEL 7 : nasm (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	high
146733	EulerOS 2.0 SP2 : nasm (EulerOS-SA-2021-1332)	Nessus	Huawei Local Security Checks	high
146176	EulerOS 2.0 SP5 : nasm (EulerOS-SA-2021-1216)	Nessus	Huawei Local Security Checks	high
145157	EulerOS 2.0 SP3 : nasm (EulerOS-SA-2021-1100)	Nessus	Huawei Local Security Checks	high
123425	GLSA-201903-19 : NASM: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
110805	Ubuntu 14.04 LTS : NASM vulnerabilities (USN-3694-1)	Nessus	Ubuntu Local Security Checks	high
102608	Fedora 25 : nasm (2017-a1fe6d2b86)	Nessus	Fedora Local Security Checks	high
102551	Fedora 26 : nasm (2017-6186f95179)	Nessus	Fedora Local Security Checks	high
102337	openSUSE Security Update : nasm (openSUSE-2017-901)	Nessus	SuSE Local Security Checks	high
102039	Debian DLA-1041-1 : nasm security update	Nessus	Debian Local Security Checks	high

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CVE-2017-10686

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