CVE-2021-20294

Name	CVE-2021-20294
Description	A flaw was found in binutils readelf 2.35 program. An attacker who is able to convince a victim using readelf to read a crafted file could trigger a stack buffer overflow, out-of-bounds write of arbitrary data supplied by the attacker. The highest impact of this flaw is to confidentiality, integrity, and availability.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
binutils (PTS)	jessie, jessie (lts)	2.25-5+deb8u2	vulnerable
	stretch (lts), stretch	2.28-5+deb9u1	vulnerable
	buster, buster (lts)	2.31.1-16+deb10u1	vulnerable
	bullseye	2.35.2-2	fixed
	bookworm	2.40-2	fixed
	sid, trixie	2.43.1-5	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
binutils	source	(unstable)	2.35.2-1	unimportant

Notes

https://sourceware.org/bugzilla/show_bug.cgi?id=26929
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=372dd157272e0674d13372655cc60eaca9c06926
binutils not covered by security support