Description
Double free vulnerability in libgnutls in GnuTLS before 3.0.14 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted certificate list.
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 | 3.0.14-1 | — |
| Debian 13 | gnutls28 | 3.0.14-1 | — |
| Debian 12 | gnutls28 | 3.0.14-1 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- GnuTLS libgnutls - Double-Free Certificate List Parsing Remote Denial of Service EDB-24865 · dos · Mar 22, 2013
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- gnutls-libgnutls-certificate-dos(74099) vdb-entry
- 24865 exploit
- [gnutls-devel] 20120224 gnutls 3.0.14 mailing-list