CVE-2020-14315

NameCVE-2020-14315
DescriptionA 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.
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 severityhigh
Debian Bugs964796

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
bsdiff (PTS)stretch4.3-19vulnerable
bullseye, sid, buster4.3-21vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
bsdiffsource(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

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