| Name | CVE-2024-0567 |
| Description | A vulnerability was found in GnuTLS, where a cockpit (which uses gnuTLS) rejects a certificate chain with distributed trust. This issue occurs when validating a certificate chain with cockpit-certificate-ensure. This flaw allows an unauthenticated, remote client or attacker to initiate a denial of service attack. |
| 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 | 1061045 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| gnutls28 (PTS) | buster | 3.6.7-4+deb10u8 | fixed |
| buster (security) | 3.6.7-4+deb10u12 | fixed |
| bullseye | 3.7.1-5+deb11u4 | vulnerable |
| bullseye (security) | 3.7.1-5+deb11u3 | vulnerable |
| bookworm | 3.7.9-2+deb12u2 | fixed |
| trixie, sid | 3.8.5-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| gnutls28 | source | buster | (not affected) | | | |
| gnutls28 | source | bookworm | 3.7.9-2+deb12u2 | | | |
| gnutls28 | source | (unstable) | 3.8.3-1 | | | 1061045 |
Notes
[bullseye] - gnutls28 <no-dsa> (Minor issue; will be fixed in point release)
[buster] - gnutls28 <not-affected> (Vulnerabity introduced in 3.7)
https://gitlab.com/gnutls/gnutls/-/issues/1521
https://gnutls.org/security-new.html#GNUTLS-SA-2024-01-09
https://lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html
https://gitlab.com/gnutls/gnutls/-/commit/9edbdaa84e38b1bfb53a7d72c1de44f8de373405 (3.8.3)