PT-2014-1773 · Mit+5 · Mit Kerberos 5+5

Published 2014-07-20 · Updated 2024-06-15 · CVE-2014-4342

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 (aka krb5) versions 1.7.x through 1.12.x before 1.12.2

Description The issue allows remote attackers to cause a denial of service by injecting invalid tokens into a GSSAPI application session, potentially leading to a buffer over-read or NULL pointer dereference and application crash. This 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 1.7.x through 1.12.x before 1.12.2, update to version 1.12.2 or later to resolve the issue. As a temporary workaround, consider restricting access to GSSAPI application sessions to minimize the risk of exploitation.

Fix

DoS

Buffer Overflow

Double Free

Weakness Enumeration

CWE-119

CWE-415

Related Identifiers

ALT-PU-2014-2418

BDU:2015-01984

CESA-2014_1389

CESA-2015_0439

CVE-2014-4342

DLA-37-1

DSA-3000-1

MGASA-2014-0345

OPENSUSE-SU-2024:10004-1

RHSA-2014:1389

RHSA-2014_1389

RHSA-2015:0439

RHSA-2015_0439

USN-2310-1

Affected Products

Alt Linux

Centos

Mit Kerberos 5

Red Hat

Suse

Ubuntu

References · 99

• https://github.com/krb5/krb5/commit/e6ae703ae597d798e310368d52b8f38ee11c6a73 · Patch
• https://ubuntu.com/security/CVE-2013-6800 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4344 · Security Note
• http://rhn.redhat.com/errata/RHSA-2015-0439.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2014-4342 · Security Note
• http://debian.org/security/2014/dsa-3000 · Vendor Advisory
• https://ubuntu.com/security/CVE-2014-4344 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10004-1 · Vendor Advisory
• http://oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html · Patch
• https://linux.oracle.com/errata/ELSA-2015-0439.html · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4342 · Security Note
• https://ubuntu.com/security/notices/USN-2310-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-2310-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2014-4343 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2014-4342 · Security Note