CVE-2020-9308

Name	CVE-2020-9308
Description	archive_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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	951759

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libarchive (PTS)	jessie, jessie (lts)	3.1.2-11+deb8u12	fixed
	stretch (security)	3.2.2-2+deb9u3	fixed
	stretch (lts), stretch	3.2.2-2+deb9u5	fixed
	buster, buster (lts)	3.3.3-4+deb10u4	fixed
	buster (security)	3.3.3-4+deb10u3	fixed
	bullseye	3.4.3-2+deb11u1	fixed
	bullseye (security)	3.4.3-2+deb11u2	fixed
	bookworm	3.6.2-1+deb12u1	fixed
	bookworm (security)	3.6.2-1+deb12u2	fixed
	sid, trixie	3.7.4-1.1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Debian Bugs
libarchive	source	wheezy	(unfixed)	end-of-life
libarchive	source	jessie	(not affected)
libarchive	source	stretch	(not affected)
libarchive	source	buster	(not affected)
libarchive	source	(unstable)	3.4.0-2		951759

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