Descriptionbsdtar in libarchive before 3.2.0 returns a success code without filling the entry when the header is a "split file in multivolume RAR," which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted rar file.
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

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libarchive (PTS)stretch (security), stretch3.2.2-2+deb9u2fixed
buster, buster (security)3.3.3-4+deb10u1fixed
bullseye, sid3.4.3-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libarchivesourcewheezy(not affected)


[wheezy] - libarchive <not-affected> (no segfault, not reproducible with reproducer)
Fixed by

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