PT-2013-1161 · Mit+4 · Mit Kerberos 5+4

Xi Wang · Published 2013-03-03 · Updated 2024-06-15 · CVE-2013-1415

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 1.10.3 through 1.10.4 and 1.11.x through 1.11.1

Description The issue is related to the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5. It does not properly handle errors during extraction of fields from an X.509 certificate, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed KRB5 PADATA PK AS REQ AS-REQ request. The vulnerability can be exploited by a remote attacker who has passed the authentication procedure, potentially leading to a violation of confidentiality, integrity, and availability of protected information.

Recommendations For versions 1.10.3 through 1.10.4, update to version 1.10.4 or later. For versions 1.11.x through 1.11.1, update to version 1.11.1 or later. As a temporary workaround, consider restricting access to the pkinit check kdc pkid function in the plugins/preauth/pkinit/pkinit crypto openssl.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-2013-1415

OPENSUSE-SU-2024:10004-1

RHSA-2013:0656

RHSA-2013_0656

USN-2310-1

Affected Products

Centos

Mit Kerberos 5

Red Hat

Suse

Ubuntu

References · 84

• https://github.com/krb5/krb5/commit/f249555301940c6df3a2cdda13b56b5674eebc2e · Patch
• https://ubuntu.com/security/CVE-2013-6800 · Vendor Advisory
• http://krbdev.mit.edu/rt/Ticket/Display.html?id=7577 · Vendor Advisory
• https://ubuntu.com/security/CVE-2014-4344 · Vendor Advisory
• http://web.mit.edu/kerberos/www/krb5-1.11 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10004-1 · Vendor Advisory
• http://krbdev.mit.edu/rt/Ticket/Display.html?id=7570 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2013-1415 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-2310-1 · Vendor Advisory
• 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://ubuntu.com/security/CVE-2014-4342 · Vendor Advisory
• http://mandriva.com/security/advisories?name=MDVSA-2013:157 · Vendor Advisory