| Name | CVE-2020-1763 |
| Description | An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw to crash libreswan by sending specially-crafted IKEv1 Informational Exchange packets. The daemon respawns after the crash. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-4684-1 |
| Debian Bugs | 960458 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libreswan (PTS) | buster (security), buster, buster (lts) | 3.27-6+deb10u1 | fixed |
| bullseye | 4.3-1+deb11u4 | fixed |
| bullseye (security) | 4.3-1+deb11u3 | fixed |
| bookworm | 4.10-2+deb12u1 | fixed |
| sid, trixie | 4.14-1.1 | fixed |
The information below is based on the following data on fixed versions.
Notes
Introduced by: https://github.com/libreswan/libreswan/commit/fa004e7d4b83fbeaa8d0f6d8430a96aed97a97b9 (v3.27)
Fixed by: https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8
https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt