Descriptioncpio 2.11, when using the --no-absolute-filenames option, allows local users to write to arbitrary files via a symlink attack on a file in an archive.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs774669

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
cpio (PTS)buster2.12+dfsg-9fixed
buster (security)2.12+dfsg-9+deb10u1fixed
sid, trixie, bookworm2.13+dfsg-7.1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[wheezy] - cpio <no-dsa> (Minor issue)
[squeeze] - cpio <no-dsa> (Minor issue)
Patch used in SUSE:
Regression in upstream's handling of patch

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