Description
The _gnutls_ecc_ansi_x963_export function in gnutls_ecc.c in GnuTLS 3.x before 3.1.28, 3.2.x before 3.2.20, and 3.3.x before 3.3.10 allows remote attackers to cause a denial of service (out-of-bounds write) via a crafted (1) Elliptic Curve Cryptography (ECC) certificate or (2) certificate signing requests (CSR), related to generating key IDs.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | gnutls28 | 3.3.8-4 | — |
| Debian 13 | gnutls28 | 3.3.8-4 | — |
| Debian 12 | gnutls28 | 3.3.8-4 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | gnutls +4 | 3.1.18-10.el7_0 | RHSA-2014:1846 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | gnutls | 3.4.15-1.1 | openSUSE-SU-2024:10105-1 |
Advisories 3
- WID-SEC-2026-3109 GnuTLS: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Aug 31, 2026
- RHSA-2014:1846 Red Hat Security Advisory: gnutls security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- openSUSE-SU-2024:10105-1 gnutls-3.4.15-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- 59991 third-party-advisory
- RHSA-2014:1846 vendor-advisory
- USN-2403-1 vendor-advisory
- 62294 third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1161443
- 62284 third-party-advisory
- openSUSE-SU-2014:1472 vendor-advisory