CVE-2020-9308

NameCVE-2020-9308
Descriptionarchive_read_support_format_rar5.c in libarchive before 3.4.2 attempts to unpack a RAR5 file with an invalid or corrupted header (such as a header size of zero), leading to a SIGSEGV or possibly unspecified other impact.
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
Debian Bugs951759

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libarchive (PTS)jessie3.1.2-11+deb8u3fixed
jessie (security)3.1.2-11+deb8u8fixed
stretch (security), stretch3.2.2-2+deb9u2fixed
buster, buster (security)3.3.3-4+deb10u1fixed
bullseye, sid3.4.0-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libarchivesource(unstable)3.4.0-2951759
libarchivesourcebuster(not affected)
libarchivesourcejessie(not affected)
libarchivesourcestretch(not affected)

Notes

[buster] - libarchive <not-affected> (rar5 support added in 3.4.0)
[stretch] - libarchive <not-affected> (rar5 support added in 3.4.0)
[jessie] - libarchive <not-affected> (rar5 support added in 3.4.0)
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20459
https://github.com/libarchive/libarchive/pull/1326
https://github.com/libarchive/libarchive/commit/94821008d6eea81e315c5881cdf739202961040a

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