CVE-2014-3468
HIGH severity · CVSS 7.5 · CWE-131
7.5CVSS HIGH
Summary
The asn1_get_bit_der function in GNU Libtasn1 before 3.6 does not properly report an error when a negative bit length is identified, which allows context-dependent attackers to cause out-of-bounds access via crafted ASN.1 data.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impact—
Integrity impact—
Availability impact—
Exploit probability (EPSS)4%
AV:N/AC:L/Au:N/C:P/I:P/A:P
Affected products we track (2)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://git.savannah.gnu.org/cgit/libtasn1.git/commit/?id=1c3ccb3e040bf13e342ee60bc23b21b97b11923f ↗
Additional information
- NVD record
- http://git.savannah.gnu.org/cgit/libtasn1.git/commit/?id=1c3ccb3e040bf13e342ee60bc23b21b97b11923fPatch
- http://lists.gnu.org/archive/html/help-libtasn1/2014-05/msg00006.htmlPatch
- http://advisories.mageia.org/MGASA-2014-0247.htmlAdvisory
- http://linux.oracle.com/errata/ELSA-2014-0594.htmlAdvisory
- http://linux.oracle.com/errata/ELSA-2014-0596.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2014-06/msg00002.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2014-06/msg00015.htmlAdvisory
- http://rhn.redhat.com/errata/RHSA-2014-0594.htmlAdvisory