Description
GnuTLS before 3.3.13 does not validate that the signature algorithms match when importing a certificate.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GnuTLS | GnuTLS | before 3.3.13 | — |
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 | 3.3.8-6 | — |
| Debian 13 | gnutls28 | 3.3.8-6 | — |
| Debian 12 | gnutls28 | 3.3.8-6 | — |
| Debian 7 | gnutls26 | 2.12.20-8+deb7u3 | DSA-3191-1 |
| Debian 6.0 | gnutls26 | 2.8.6-1+squeeze5 | DLA-180-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | gnutls26 | 2.12.23-12ubuntu2.2 | USN-2540-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | gnutls +3 | 2.8.5-18.el6 | RHSA-2015:1457 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | gnutls | 3.2.15-7.2 | SUSE-SU-2015:0735-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 | gnutls | 3.2.15-7.2 | SUSE-SU-2015:0735-1 |
Advisories 5
- RHSA-2015:1457 Red Hat Security Advisory: gnutls security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-2540-1 gnutls26, gnutls28 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-180-1 gnutls26 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3191-1 gnutls26 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2015:0735-1 Security update for gnutls SUSE / openSUSE Security Updates · Feb 4, 2026