CVE-2019-12439

NameCVE-2019-12439
Descriptionbubblewrap.c in Bubblewrap before 0.3.3 misuses temporary directories in /tmp as a mount point. In some particular configurations (related to XDG_RUNTIME_DIR), a local attacker may abuse this flaw to prevent other users from executing bubblewrap or potentially execute code.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium (attack range: local)
Debian Bugs923557

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
bubblewrap (PTS)stretch0.1.7-1vulnerable
buster0.3.1-4fixed
bullseye, sid0.3.3-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
bubblewrapsource(unstable)0.3.1-3unimportant923557

Notes

https://github.com/projectatomic/bubblewrap/issues/304
Negligable security impact

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