CVE-2020-13776

NameCVE-2020-13776
Descriptionsystemd through v245 mishandles numerical usernames such as ones composed of decimal digits or 0x followed by hex digits, as demonstrated by use of root privileges when privileges of the 0x0 user account were intended. NOTE: this issue exists because of an incomplete fix for CVE-2017-1000082.
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
systemd (PTS)buster241-7~deb10u8fixed
buster (security)241-7~deb10u10fixed
bullseye247.3-7+deb11u4fixed
bookworm252.22-1~deb12u1fixed
sid, trixie255.4-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
systemdsourcebuster(not affected)
systemdsource(unstable)246-2unimportant

Notes

[buster] - systemd <not-affected> (Vulnerable code introduced later)
https://github.com/systemd/systemd/issues/15985
https://github.com/systemd/systemd/commit/156a5fd297b61bce31630d7a52c15614bf784843 (v246-rc1)
https://github.com/systemd/systemd/commit/6495ceddf38aed2c9efdcf9d3440140190800b55 (v246-rc1)
Issue exists due to an incomplete fix for CVE-2017-1000082.

Search for package or bug name: Reporting problems