CVE-2021-35942

Name	CVE-2021-35942
Description	The wordexp function in the GNU C Library (aka glibc) through 2.33 may crash or read arbitrary memory in parse_param (in posix/wordexp.c) when called with an untrusted, crafted pattern, potentially resulting in a denial of service or disclosure of information. This occurs because atoi was used but strtoul should have been used to ensure correct calculations.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3152-1
Debian Bugs	990542

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
glibc (PTS)	buster	2.28-10+deb10u1	vulnerable
	buster (security)	2.28-10+deb10u2	fixed
	bullseye	2.31-13+deb11u8	fixed
	bullseye (security)	2.31-13+deb11u7	fixed
	bookworm, bookworm (security)	2.36-9+deb12u4	fixed
	trixie	2.37-15	fixed
	sid	2.37-18	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
glibc	source	buster	2.28-10+deb10u2		DLA-3152-1
glibc	source	(unstable)	2.31-13			990542

https://sourceware.org/bugzilla/show_bug.cgi?id=28011
https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=5adda61f62b77384718b4c0d8336ade8f2b4b35c