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Unscored CVE-2020-21686 EUVD-2020-14454GHSA-f5w2-2h32-hmg6

A stack-use-after-scope issue discovered in expand_mmac_params function in preproc.c in nasm before 2.15.04 allows remote attackers to caus…

Published Aug 22, 2023 · Updated Oct 7, 2024 · Assigned by mitre

Description

A stack-use-after-scope issue discovered in expand_mmac_params function in preproc.c in nasm before 2.15.04 allows remote attackers to cause a denial of service via crafted asm file.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 nasm 2.15.04-1 —
Debian 13 nasm 2.15.04-1 —
Debian 12 nasm 2.15.04-1 —
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS nasm No fix yet —
Ubuntu 18.04 LTS nasm No fix yet —
Ubuntu 16.04 LTS nasm No fix yet —

References