CVE-2015-6251

NameCVE-2015-6251
DescriptionDouble 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-3334-1
Debian Bugs795068

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
gnutls28 (PTS)bullseye3.7.1-5+deb11u5fixed
bullseye (security)3.7.1-5+deb11u6fixed
bookworm3.7.9-2+deb12u3fixed
sid, trixie3.8.8-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
gnutls26source(unstable)(not affected)
gnutls28sourcejessie3.3.8-6+deb8u2DSA-3334-1
gnutls28source(unstable)3.3.17-1795068

Notes

- gnutls26 <not-affected> (Vulnerable code not present)
https://www.openwall.com/lists/oss-security/2015/08/10/1
https://gitlab.com/gnutls/gnutls/commit/272854367efc130fbd4f1a51840d80c630214e12
http://www.gnutls.org/security.html#GNUTLS-SA-2015-3
_gnutls_x509_dn_to_string() introduced in 3.1.10 via:
https://gitlab.com/gnutls/gnutls/commit/6be35136333b5d6289f23209cf896e741462909a

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