Medium severity6.5NVD Advisory· Published Aug 1, 2016· Updated Jun 17, 2026
CVE-2016-3120
CVE-2016-3120
Description
The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.
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Affected products
16cpe:2.3:a:mit:kerberos_5:1.13:*:*:*:*:*:*:*+ 10 more
- cpe:2.3:a:mit:kerberos_5:1.13:*:*:*:*:*:*:*
- cpe:2.3:a:mit:kerberos_5:1.13.1:*:*:*:*:*:*:*
- cpe:2.3:a:mit:kerberos_5:1.13.2:*:*:*:*:*:*:*
- cpe:2.3:a:mit:kerberos_5:1.13.3:*:*:*:*:*:*:*
- cpe:2.3:a:mit:kerberos_5:1.13.4:*:*:*:*:*:*:*
- cpe:2.3:a:mit:kerberos_5:1.13.5:*:*:*:*:*:*:*
- cpe:2.3:a:mit:kerberos_5:1.13.6:*:*:*:*:*:*:*
- cpe:2.3:a:mit:kerberos_5:1.14:*:*:*:*:*:*:*
- cpe:2.3:a:mit:kerberos_5:1.14.1:*:*:*:*:*:*:*
- cpe:2.3:a:mit:kerberos_5:1.14.2:*:*:*:*:*:*:*
- (no CPE)range: <1.13.6, <1.14.3
- osv-coords5 versionspkg:rpm/opensuse/krb5&distro=openSUSE%20Tumbleweedpkg:rpm/suse/krb5&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1pkg:rpm/suse/krb5&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1pkg:rpm/suse/krb5&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/krb5&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP1
< 1.15-1.1+ 4 more
- (no CPE)range: < 1.15-1.1
- (no CPE)range: < 1.12.1-36.4
- (no CPE)range: < 1.12.1-36.4
- (no CPE)range: < 1.12.1-36.4
- (no CPE)range: < 1.12.1-36.4
Patches
Vulnerability mechanics
References
10- krbdev.mit.edu/rt/Ticket/Display.htmlnvdIssue Tracking
- lists.opensuse.org/opensuse-updates/2016-09/msg00035.htmlnvd
- rhn.redhat.com/errata/RHSA-2016-2591.htmlnvd
- web.mit.edu/kerberos/krb5-1.13/nvd
- web.mit.edu/kerberos/krb5-1.14/nvd
- www.securityfocus.com/bid/92132nvd
- www.securitytracker.com/id/1036442nvd
- github.com/krb5/krb5/commit/93b4a6306a0026cf1cc31ac4bd8a49ba5d034ba7nvd
- lists.debian.org/debian-lts-announce/2018/01/msg00040.htmlnvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AWL3KYFRJIX37EAM4DKCQQIQP2WBKL35/nvd
News mentions
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