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Fencer Intel
medium 5.0

CVE-2014-4342 json

MIT Kerberos 5 (aka krb5) 1.7.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (buffer over-read or NULL…

published 2014-07-20 12 y ago modified 2026-06-17 4 mo ago also EUVD-2014-4269

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.5%
EPSS 6.5% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

MIT Kerberos 5 (aka krb5) 1.7.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (buffer over-read or NULL pointer dereference, and application crash) by injecting invalid tokens into a GSSAPI application session.

Patch / fix

  • mit kerberos_5 1.12.2
  • mit krb5 1.12.2
  • krb5 Debian 14, Debian 13, Debian 12 1.12.1+dfsg-4

debian advisories DEBIAN-CVE-2014-4342

  • krb5 Ubuntu 14.04 LTS 1.12+dfsg-2ubuntu4.2

ubuntu advisories UBUNTU-CVE-2014-4342

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • krb5 RHEL 7 1.12.2-14.el7
  • krb5-libs RHEL 7 1.12.2-14.el7
  • krb5-pkinit RHEL 7 1.12.2-14.el7
  • krb5-server RHEL 7 1.12.2-14.el7
  • krb5-server-ldap RHEL 7 1.12.2-14.el7
  • krb5-workstation RHEL 7 1.12.2-14.el7
  • krb5 RHEL 6 1.10.3-33.el6
  • krb5-libs RHEL 6 1.10.3-33.el6

red hat advisories RHSA-2015:0439RHSA-2014:1389

  • krb5 openSUSE Tumbleweed 1.15-1.1

opensuse advisories openSUSE-SU-2024:10004-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-4342 updated cvss 4.3

krb5: denial of service flaws when handling RFC 1964 tokens

  • Red Hat Enterprise Linux Client (v. 7) krb5 1.12.2-14.el7, krb5-libs 1.12.2-14.el7, krb5-pkinit 1.12.2-14.el7, krb5-workstation 1.12.2-14.el7 Red Hat Enterprise Linux Client Optional (v. 7) krb5-server 1.12.2-14.el7, krb5-server-ldap 1.12.2-14.el7 Red Hat Enterprise Linux ComputeNode (v. 7) krb5 1.12.2-14.el7, krb5-libs 1.12.2-14.el7, krb5-pkinit 1.12.2-14.el7, krb5-workstation 1.12.2-14.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) krb5-server 1.12.2-14.el7, krb5-server-ldap 1.12.2-14.el7
    fixed: vendor fix RHSA-2015:0439
  • Red Hat Enterprise Linux Desktop (v. 6) krb5 1.10.3-33.el6, krb5-libs 1.10.3-33.el6, krb5-workstation 1.10.3-33.el6, krb5-pkinit-openssl 1.10.3-33.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) krb5-server 1.10.3-33.el6, krb5-server-ldap 1.10.3-33.el6 Red Hat Enterprise Linux HPC Node (v. 6) krb5 1.10.3-33.el6, krb5-libs 1.10.3-33.el6, krb5-workstation 1.10.3-33.el6, krb5-pkinit-openssl 1.10.3-33.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) krb5-server 1.10.3-33.el6, krb5-server-ldap 1.10.3-33.el6 Red Hat Enterprise Linux Server (v. 6) krb5 1.10.3-33.el6, krb5-libs 1.10.3-33.el6, krb5-server 1.10.3-33.el6, krb5-server-ldap 1.10.3-33.el6, krb5-workstation 1.10.3-33.el6, krb5-pkinit-openssl 1.10.3-33.el6
    fixed: vendor fix RHSA-2014:1389
  • Red Hat Enterprise Linux Server (v. 7) krb5 1.12.2-14.el7, krb5-libs 1.12.2-14.el7, krb5-pkinit 1.12.2-14.el7, krb5-server 1.12.2-14.el7, krb5-server-ldap 1.12.2-14.el7, krb5-workstation 1.12.2-14.el7
    fixed: vendor fix RHSA-2015:0439
  • Red Hat Enterprise Linux Workstation (v. 6) krb5 1.10.3-33.el6, krb5-libs 1.10.3-33.el6, krb5-server 1.10.3-33.el6, krb5-server-ldap 1.10.3-33.el6, krb5-workstation 1.10.3-33.el6, krb5-pkinit-openssl 1.10.3-33.el6
    fixed: vendor fix RHSA-2014:1389
  • Red Hat Enterprise Linux Workstation (v. 7) krb5 1.12.2-14.el7, krb5-libs 1.12.2-14.el7, krb5-pkinit 1.12.2-14.el7, krb5-server 1.12.2-14.el7, krb5-server-ldap 1.12.2-14.el7, krb5-workstation 1.12.2-14.el7
    fixed: vendor fix RHSA-2015:0439
  • Red Hat Enterprise Linux 5 krb5
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

6.52% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Improve kerberos 5 affected range consistency.