Buffer overflow in GnuTLS - CVE-2011-4128
Published: December 8, 2011 / Updated: July 28, 2020
Vulnerability identifier: #VU32707
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2011-4128
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
Buffer overflow in the gnutls_session_get_data function in lib/gnutls_session.c in GnuTLS 2.12.x before 2.12.14 and 3.x before 3.0.7, when used on a client that performs nonstandard session resumption, allows remote TLS servers to cause a denial of service (application crash) via a large SessionTicket.
Affected software
GnuTLS
Amazon Linux AMI
Slackware Linux
gnutls (Alpine package)
Amazon Linux AMI
Slackware Linux
gnutls (Alpine package)
How to mitigate CVE-2011-4128
Install update from vendor's website.
GnuTLS - update to 2.12.14
gnutls (Alpine package) - update to 2.10.5-r4
gnutls (Alpine package) - update to 2.10.5-r4
External References
- http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/5596
- http://git.savannah.gnu.org/gitweb/?p=gnutls.git;a=commitdiff;h=190cef6eed37d0e73a73c1e205eb31d45ab60a3c
- http://git.savannah.gnu.org/gitweb/?p=gnutls.git;a=commitdiff;h=e82ef4545e9e98cbcb032f55d7c750b81e3a0450
- http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077071.html
- http://openwall.com/lists/oss-security/2011/11/09/2
- http://openwall.com/lists/oss-security/2011/11/09/4
- http://rhn.redhat.com/errata/RHSA-2012-0429.html
- http://rhn.redhat.com/errata/RHSA-2012-0488.html
- http://rhn.redhat.com/errata/RHSA-2012-0531.html
- http://secunia.com/advisories/48596
- http://secunia.com/advisories/48712
- http://www.gnu.org/software/gnutls/security.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:045
- http://www.ubuntu.com/usn/USN-1418-1
- https://bugzilla.redhat.com/show_bug.cgi?id=752308