PT-2013-1160 · Mit+3 · Mit Kerberos 5+3

Nalin Dahyabhai · Published 2013-03-03 · Updated 2024-06-15 · CVE-2012-1016

Positive Technologies (AI Summary)

CVSS v2.0

8.5

High

Base vector

AV:N/AC:M/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions MIT Kerberos 5 versions prior to 1.10.4

Description The issue allows remote attackers to cause a denial of service via a crafted Draft 9 request. This is due to the pkinit server return padata function attempting to find an agility KDF identifier in inappropriate circumstances, leading to a NULL pointer dereference and daemon crash. The vulnerability can be exploited by a remote attacker who has passed the authentication procedure, potentially disrupting the confidentiality, integrity, and availability of protected information.

Recommendations For versions prior to 1.10.4, update to version 1.10.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the pkinit server return padata function in the plugins/preauth/pkinit/pkinit srv.c file until a patch is available.

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2015-06277

BDU:2015-08828

CESA-2013_0656

CVE-2012-1016

OPENSUSE-SU-2024:10004-1

RHSA-2013:0656

RHSA-2013_0656

USN-2310-1

Affected Products

Centos

Mit Kerberos 5

Red Hat

Ubuntu

References · 82

• https://github.com/krb5/krb5/commit/db64ca25d661a47b996b4e2645998b5d7f0eb52c · Patch
• https://ubuntu.com/security/CVE-2013-6800 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2012-1016 · Vendor Advisory
• https://ubuntu.com/security/CVE-2014-4344 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10004-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2012-1016 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-2310-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2012-1016 · Security Note
• https://osv.dev/vulnerability/USN-2310-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2015-08828 · Security Note
• https://ubuntu.com/security/CVE-2014-4343 · Vendor Advisory
• https://ubuntu.com/security/CVE-2014-4341 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2012-1016 · Vendor Advisory
• https://ubuntu.com/security/CVE-2014-4342 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2012-1016 · Vendor Advisory