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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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)

Note that Nessus relies on the presence of the package as reported by the vendor.

An update of the nasm package has been released.

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

  - 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)

  - Netwide Assembler (NASM) 2.13.02rc2 has a buffer     over-read in the parse_line function in asm/parser.c     via uncontrolled access to     nasm_reg_flags.(CVE-2018-8883)

  - 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)

  - 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)

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)

  - 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 :

  - 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)

  - 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)

  - 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)

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 :

  - 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)

  - 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)

  - 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)

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

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) 2.14rc16 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-2018-19216)

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

  - Netwide Assembler (NASM) 2.13.02rc2 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)

  - 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)

  - 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)

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.

ID	Name	Product	Family	Severity
222138	Linux Distros Unpatched Vulnerability : CVE-2018-19755	Nessus	Misc.	medium
203960	Photon OS 3.0: Nasm PHSA-2023-3.0-0568	Nessus	PhotonOS Local Security Checks	critical
149129	EulerOS 2.0 SP3 : nasm (EulerOS-SA-2021-1820)	Nessus	Huawei Local Security Checks	high
146733	EulerOS 2.0 SP2 : nasm (EulerOS-SA-2021-1332)	Nessus	Huawei Local Security Checks	high
144219	EulerOS 2.0 SP5 : nasm (EulerOS-SA-2020-2556)	Nessus	Huawei Local Security Checks	high
144155	EulerOS 2.0 SP8 : nasm (EulerOS-SA-2020-2521)	Nessus	Huawei Local Security Checks	high
142355	EulerOS 2.0 SP9 : nasm (EulerOS-SA-2020-2434)	Nessus	Huawei Local Security Checks	high
142279	EulerOS 2.0 SP9 : nasm (EulerOS-SA-2020-2416)	Nessus	Huawei Local Security Checks	high

Detections

Analytics

CVE-2018-19755

medium

Tenable Plugins

medium

critical

high

high

high

high

high

high