ALT-PU-2017-1231-1
Closed vulnerabilities
Published: 2016-08-01
Modified: 2024-11-21
Modified: 2024-11-21
CVE-2016-3120
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.
Severity: MEDIUM (6.5)
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References:
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=8458
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=8458
- openSUSE-SU-2016:2268
- openSUSE-SU-2016:2268
- RHSA-2016:2591
- RHSA-2016:2591
- http://web.mit.edu/kerberos/krb5-1.13/
- http://web.mit.edu/kerberos/krb5-1.13/
- http://web.mit.edu/kerberos/krb5-1.14/
- http://web.mit.edu/kerberos/krb5-1.14/
- 92132
- 92132
- 1036442
- 1036442
- https://github.com/krb5/krb5/commit/93b4a6306a0026cf1cc31ac4bd8a49ba5d034ba7
- https://github.com/krb5/krb5/commit/93b4a6306a0026cf1cc31ac4bd8a49ba5d034ba7
- [debian-lts-announce] 20180131 [SECURITY] [DLA 1265-1] krb5 security update
- [debian-lts-announce] 20180131 [SECURITY] [DLA 1265-1] krb5 security update
- FEDORA-2016-0674a3c372
- FEDORA-2016-0674a3c372