CVE-2019-19921

NameCVE-2019-19921
Descriptionrunc through 1.0.0-rc9 has Incorrect Access Control leading to Escalation of Privileges, related to libcontainer/rootfs_linux.go. To exploit this, an attacker must be able to spawn two containers with custom volume-mount configurations, and be able to run custom images. (This vulnerability does not affect Docker due to an implementation detail that happens to block the attack.)
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3369-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
runc (PTS)buster1.0.0~rc6+dfsg1-3vulnerable
buster (security)1.0.0~rc6+dfsg1-3+deb10u3fixed
bullseye (security), bullseye1.0.0~rc93+ds1-5+deb11u3fixed
bookworm, bookworm (security)1.1.5+ds1-1+deb12u1fixed
sid, trixie1.1.12+ds1-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
runcsourcebuster1.0.0~rc6+dfsg1-3+deb10u2DLA-3369-1
runcsource(unstable)1.0.0~rc10+dfsg1-1

Notes

[stretch] - runc <no-dsa> (Minor issue)
https://github.com/opencontainers/runc/issues/2197
https://github.com/opencontainers/runc/pull/2190
https://github.com/opencontainers/runc/commit/3291d66b98445bd7f7d02eac7f2bca2ac2c56942 (v1.0.0-rc10)

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