CVE-2019-7309

Name	CVE-2019-7309
Description	In the GNU C Library (aka glibc or libc6) through 2.29, the memcmp function for the x32 architecture can incorrectly return zero (indicating that the inputs are equal) because the RDX most significant bit is mishandled.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
glibc (PTS)	buster	2.28-10+deb10u1	fixed
	buster (security)	2.28-10+deb10u2	fixed
	bullseye	2.31-13+deb11u5	fixed
	bookworm, sid	2.36-8	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
glibc	source	(unstable)	2.28-6	unimportant

https://sourceware.org/bugzilla/show_bug.cgi?id=24155
https://sourceware.org/ml/libc-alpha/2019-02/msg00041.html
x32 not officially supported