CVE-2017-17819 — NULL Pointer Dereference in Nasm

CWE-476 — NULL Pointer DereferenceCWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer8 documents7 sources
Severity
5.5MEDIUMNVD
EPSS
0.2%
top 58.22%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
NasmDebian NasmCanonical Ubuntu Linux+1 more
Timeline
PublishedDec 21
Latest updateMay 14

Description

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.

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages3 packages

▶debiandebian/nasm< nasm 2.13.02-0.1 (bookworm)
▶Debiannasm/nasm< 2.13.02-0.1+3

Also affects: Ubuntu Linux 14.04

Patches

Patch: repo.or.cz ↗Patch: repo.or.cz ↗

🔴Vulnerability Details

2
GHSA
GHSA-3rfw-gmgc-jjxr: In Netwide Assembler (NASM) 2↗2022-05-14
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OSV
CVE-2017-17819: In Netwide Assembler (NASM) 2↗2017-12-21
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📋Vendor Advisories

3
Ubuntu
NASM vulnerabilities↗2018-06-28
▶
Red Hat
nasm: Illegal address access in find_cc function in asm/preproc.c↗2017-12-21
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Debian
CVE-2017-17819: nasm - In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in the f...↗2017
▶

💬Community

2
Bugzilla
CVE-2017-17819 nasm: Illegal address access in find_cc function in asm/preproc.c↗2017-12-27
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Bugzilla
CVE-2017-17810 CVE-2017-17811 CVE-2017-17812 CVE-2017-17813 CVE-2017-17814 CVE-2017-17815 CVE-2017-17816 CVE-2017-17817 CVE-2017-17818 CVE-2017-17819 CVE-2017-17820 nasm: various flaws [fedora-all]↗2017-12-27
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