| 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, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 964796 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| bsdiff (PTS) | buster | 4.3-21 | vulnerable |
| bullseye | 4.3-22 | fixed |
| sid, trixie, bookworm | 4.3-23 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| bsdiff | source | (unstable) | 4.3-22 | | | 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