CVE-2021-38604

NameCVE-2021-38604
DescriptionIn librt in the GNU C Library (aka glibc) through 2.34, sysdeps/unix/sysv/linux/mq_notify.c mishandles certain NOTIFY_REMOVED data, leading to a NULL pointer dereference. NOTE: this vulnerability was introduced as a side effect of the CVE-2021-33574 fix.
SourceCVE (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 PackageReleaseVersionStatus
glibc (PTS)jessie, jessie (lts)2.19-18+deb8u14fixed
stretch (security)2.24-11+deb9u1fixed
stretch (lts), stretch2.24-11+deb9u7fixed
buster (security), buster, buster (lts)2.28-10+deb10u4fixed
bullseye2.31-13+deb11u11fixed
bullseye (security)2.31-13+deb11u10fixed
bookworm2.36-9+deb12u9fixed
bookworm (security)2.36-9+deb12u7fixed
sid, trixie2.40-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
glibcsource(unstable)(not affected)

Notes

- glibc <not-affected> (Vulnerability introduced as side effect of the CVE-2021-33574 fix)
https://sourceware.org/bugzilla/show_bug.cgi?id=28213
https://sourceware.org/git/?p=glibc.git;a=commit;h=4cc79c217744743077bf7a0ec5e0a4318f1e6641
https://sourceware.org/git/?p=glibc.git;a=commit;h=b805aebd42364fe696e417808a700fdb9800c9e8

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