CVE-2021-20266

NameCVE-2021-20266
DescriptionA flaw was found in RPM's hdrblobInit() in lib/header.c. This flaw allows an attacker who can modify the rpmdb to cause an out-of-bounds read. The highest threat from this vulnerability is to system availability.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs985308

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
rpm (PTS)bullseye4.16.1.2+dfsg1-3fixed
bookworm4.18.0+dfsg-1+deb12u1fixed
sid, trixie4.20.0+dfsg-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
rpmsource(unstable)4.16.1.2+dfsg1-1985308

Notes

[buster] - rpm <no-dsa> (Minor issue)
[stretch] - rpm <no-dsa> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=1927741

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