Description
The _gnutls_ciphertext2compressed function in lib/gnutls_cipher.c in GnuTLS 2.12.23 allows remote attackers to cause a denial of service (buffer over-read and crash) via a crafted padding length. NOTE: this might be due to an incorrect fix for CVE-2013-0169.
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 7 | gnutls26 | 2.12.20-7 | DSA-2697-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | gnutls +3 | 2.8.5-10.el6_4.2 | RHSA-2013:0883 |
| RHEL 6 | rhev-hypervisor6 | 6.4-20130709.0.el6_4 | RHSA-2013:1076 |
| RHEL 5 | gnutls +2 | 1.4.1-10.el5_9.2 | RHSA-2013:0883 |
Advisories 3
- RHSA-2013:1076 Red Hat Security Advisory: rhev-hypervisor6 security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2013:0883 Red Hat Security Advisory: gnutls security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2697-1 gnutls26 - out-of-bounds array read Debian Security (DSA / DLA) · Mar 9, 2026
References
- 57260 third-party-advisory
- SUSE-SU-2013:1060 vendor-advisory
- 57274 third-party-advisory
- SUSE-SU-2014:0320 vendor-advisory
- SUSE-SU-2014:0322 vendor-advisory
- MDVSA-2013:171 vendor-advisory
- RHSA-2013:0883 vendor-advisory
- DSA-2697 vendor-advisory
- http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/6754
- http://www.gnutls.org/security.html#GNUTLS-SA-2013-2
- 53911 third-party-advisory
- https://gitorious.org/gnutls/gnutls/commit/5164d5a1d57cd0372a5dd074382ca960ca18b27d
- USN-1843-1 vendor-advisory
- 1028603 vdb-entry
- http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/6753