CVE-2022-29162

NameCVE-2022-29162
Descriptionrunc is a CLI tool for spawning and running containers on Linux according to the OCI specification. A bug was found in runc prior to version 1.1.2 where `runc exec --cap` created processes with non-empty inheritable Linux process capabilities, creating an atypical Linux environment and enabling programs with inheritable file capabilities to elevate those capabilities to the permitted set during execve(2). This bug did not affect the container security sandbox as the inheritable set never contained more capabilities than were included in the container's bounding set. This bug has been fixed in runc 1.1.2. This fix changes `runc exec --cap` behavior such that the additional capabilities granted to the process being executed (as specified via `--cap` arguments) do not include inheritable capabilities. In addition, `runc spec` is changed to not set any inheritable capabilities in the created example OCI spec (`config.json`) file.
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)bullseye1.0.0~rc93+ds1-5+deb11u5fixed
bullseye (security)1.0.0~rc93+ds1-5+deb11u3fixed
bookworm, bookworm (security)1.1.5+ds1-1+deb12u1fixed
sid, trixie1.1.15+ds1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
runcsourcestretch(not affected)
runcsourcebuster1.0.0~rc6+dfsg1-3+deb10u2DLA-3369-1
runcsourcebullseye1.0.0~rc93+ds1-5+deb11u2
runcsource(unstable)1.1.3+ds1-1

Notes

[stretch] - runc <not-affected> (Vulnerable code not present)
https://www.openwall.com/lists/oss-security/2022/05/12/1
https://github.com/opencontainers/runc/commit/364ec0f1b4fa188ad96049c590ecb42fa70ea165 (v1.1.2)
https://github.com/opencontainers/runc/commit/98fe566c527479195ce3c8167136d2a555fe6b65 (main)

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