CVE-2015-6251
Double free vulnerability in GnuTLS before 3.3.17 and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service via a long DistinguishedName (DN) entry in a certificate.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 19.2%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
Double free vulnerability in GnuTLS before 3.3.17 and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service via a long DistinguishedName (DN) entry in a certificate.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 19.18% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- gnu/gnutls · debian/debian linux
- Source
- secalert@redhat.com
EPSS 19.2% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165286.html
- http://lists.opensuse.org/opensuse-updates/2015-09/msg00001.html
- http://www.debian.org/security/2015/dsa-3334
- http://www.gnutls.org/security.html#GNUTLS-SA-2015-3Vendor Advisory
- http://www.openwall.com/lists/oss-security/2015/08/10/1
- http://www.openwall.com/lists/oss-security/2015/08/17/6
- http://www.securityfocus.com/bid/76267
- http://www.securitytracker.com/id/1033226
- https://bugzilla.redhat.com/show_bug.cgi?id=1251902
- https://gitlab.com/gnutls/gnutls/commit/272854367efc130fbd4f1a51840d80c630214e12
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165286.html
- http://lists.opensuse.org/opensuse-updates/2015-09/msg00001.html
- http://www.debian.org/security/2015/dsa-3334
- http://www.gnutls.org/security.html#GNUTLS-SA-2015-3Vendor Advisory
- http://www.openwall.com/lists/oss-security/2015/08/10/1
- http://www.openwall.com/lists/oss-security/2015/08/17/6
- http://www.securityfocus.com/bid/76267
- http://www.securitytracker.com/id/1033226
- https://bugzilla.redhat.com/show_bug.cgi?id=1251902
- https://gitlab.com/gnutls/gnutls/commit/272854367efc130fbd4f1a51840d80c630214e12
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.