CVE-2013-1416
MEDIUM severity · CVSS 4 · CWE-476
4CVSS MEDIUM
Summary
The prep_reprocess_req function in do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.5 does not properly perform service-principal realm referral, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted TGS-REQ request.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impactNone
Integrity impactNone
Availability impact—
Exploit probability (EPSS)3%
AV:N/AC:L/Au:S/C:N/I:N/A:P
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=7600Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/102058.htmlAdvisory
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/102074.htmlAdvisory
- http://lists.opensuse.org/opensuse-updates/2013-05/msg00011.htmlAdvisory
- http://lists.opensuse.org/opensuse-updates/2013-06/msg00041.htmlAdvisory
- http://lists.opensuse.org/opensuse-updates/2013-06/msg00102.htmlAdvisory
- http://rhn.redhat.com/errata/RHSA-2013-0748.htmlAdvisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:157Advisory