CVE-2020-14315

Name	CVE-2020-14315
Description	A memory corruption vulnerability is present in bspatch as shipped in Colin Percival’s bsdiff tools version 4.3. Insufficient checks when handling external inputs allows an attacker to bypass the sanity checks in place and write out of a dynamically allocated buffer boundaries.
Source	CVE (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 severity	high
Debian Bugs	964796

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
bsdiff (PTS)	stretch	4.3-19	vulnerable
	bullseye, sid, buster	4.3-21	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
bsdiff	source	(unstable)	(unfixed)			964796

Notes

[buster] - bsdiff <no-dsa> (Minor issue)
[stretch] - bsdiff <no-dsa> (Minor issue)
https://www.openwall.com/lists/oss-security/2020/07/09/2
https://www.freebsd.org/security/advisories/FreeBSD-SA-16:29.bspatch.asc