DescriptionAn issue was discovered in mgetty before 1.2.1. In fax/faxq-helper.c, the function do_activate() does not properly sanitize shell metacharacters to prevent command injection. It is possible to use the ||, &&, or > characters within a file created by the "faxq-helper activate <jobid>" command.
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)
ReferencesDLA-1502-1, DSA-4291-1
NVD severityhigh (attack range: local)
Debian Bugs910448

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mgetty (PTS)jessie1.1.36-2.1vulnerable
jessie (security)1.1.36-2.1+deb8u1fixed
stretch (security), stretch1.1.36-3+deb9u1fixed
buster, sid1.2.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs

Upstream commit: 1a7b3a30f79bae4cfbc6404fe4648689cd0ade62 (1.2.1)

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