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CVE-2018-19755

Published: 30 November 2018

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.

Priority

Negligible

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
nasm
Launchpad, Ubuntu, Debian
bionic Needed

cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needed

trusty Does not exist
(trusty was needed)
upstream Needs triage

hirsute Ignored
(end of life)
groovy Ignored
(end of life)
xenial Needed

jammy Needed

impish Ignored
(end of life)
kinetic Ignored
(end of life, was needed)
mantic Needed

lunar Ignored
(end of life, was needed)
Patches:
upstream: https://repo.or.cz/nasm.git/commit/3079f7966dbed4497e36d5067cbfd896a90358cb

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H