| Name | CVE-2024-12133 |
| Description | A flaw in libtasn1 causes inefficient handling of specific certificate data. When processing a large number of elements in a certificate, libtasn1 takes much longer than expected, which can slow down or even crash the system. This flaw allows an attacker to send a specially crafted certificate, causing 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) |
| References | DSA-5863-1 |
| Debian Bugs | 1095406 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libtasn1-6 (PTS) | bullseye | 4.16.0-2+deb11u1 | vulnerable |
| bookworm | 4.19.0-2 | vulnerable | |
| bookworm (security) | 4.19.0-2+deb12u1 | fixed | |
| trixie | 4.19.0-3 | vulnerable | |
| sid | 4.20.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libtasn1-6 | source | bookworm | 4.19.0-2+deb12u1 | DSA-5863-1 | ||
| libtasn1-6 | source | (unstable) | 4.20.0-1 | 1095406 |
https://www.openwall.com/lists/oss-security/2025/02/06/6
https://gitlab.com/gnutls/libtasn1/-/issues/52
https://gitlab.com/gnutls/libtasn1/-/commit/4082ca2220b5ba910b546afddf7780fc4a51f75a (v4.20.0)
https://gitlab.com/gnutls/libtasn1/-/commit/869a97aa259dffa2620dabcad84e1c22545ffc3d (v4.20.0)
https://lists.gnu.org/archive/html/help-libtasn1/2025-02/msg00001.html