| Name | CVE-2023-26463 |
| Description | strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named "public" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| strongswan (PTS) | buster | 5.7.2-1+deb10u2 | fixed |
| buster (security) | 5.7.2-1+deb10u4 | fixed | |
| bullseye (security), bullseye | 5.9.1-1+deb11u4 | fixed | |
| bookworm, bookworm (security) | 5.9.8-5+deb12u1 | fixed | |
| sid, trixie | 5.9.13-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| strongswan | source | buster | (not affected) | |||
| strongswan | source | bullseye | (not affected) | |||
| strongswan | source | (unstable) | 5.9.8-4 |
[bullseye] - strongswan <not-affected> (Vulnerable code not present)
[buster] - strongswan <not-affected> (Vulnerable code not present)
https://www.strongswan.org/blog/2023/03/02/strongswan-vulnerability-(cve-2023-26463).html
Introduced by: https://github.com/strongswan/strongswan/commit/63fd718915b5d246dcc5560382db0c30de309040 (5.9.8dr1)