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Fencer Intel
medium 5.0

CVE-2014-5355 json

MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '…

published 2015-02-20 11 y ago modified 2026-06-17 4 mo ago also EUVD-2014-5244

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.6%
EPSS 4.6% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.

Patch / fix

  • krb5 Debian 14, Debian 13, Debian 12 1.12.1+dfsg-18

debian advisories DEBIAN-CVE-2014-5355

  • krb5 Ubuntu 14.04 LTS 1.12+dfsg-2ubuntu5.2

ubuntu advisories UBUNTU-CVE-2014-5355

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 1.13.2-10.el7
  • krb5-libs RHEL 7 1.13.2-10.el7
  • krb5-pkinit RHEL 7 1.13.2-10.el7
  • krb5-server RHEL 7 1.13.2-10.el7
  • krb5-server-ldap RHEL 7 1.13.2-10.el7
  • krb5-workstation RHEL 7 1.13.2-10.el7
  • krb5 RHEL 6 1.10.3-37.el6_6
  • krb5-libs RHEL 6 1.10.3-37.el6_6

red hat advisories RHSA-2015:2154RHSA-2015:0794

  • krb5 SLES for SAP 12, SLES 12, SLE Software Development Kit 12 1.12.1-16.1
  • krb5 SLES for SAP 11 SP4, SLES for SAP 11 SP3, SLES 11 SP4 +6 more 1.6.3-133.49.68.1
  • krb5-plugins SLES for SAP 11 SP4, SLES for SAP 11 SP3, SLES 11 SP4 +2 more 1.6.3-133.49.68.1

suse advisories SUSE-SU-2015:1276-1SUSE-SU-2015:1282-1

  • 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-2014-5355 updated cvss 5.0

krb5: unauthenticated denial of service in recvauth_common() and others

  • Red Hat Enterprise Linux 5 krb5
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) krb5 1.13.2-10.el7, krb5-libs 1.13.2-10.el7, krb5-pkinit 1.13.2-10.el7, krb5-workstation 1.13.2-10.el7 Red Hat Enterprise Linux Client Optional (v. 7) krb5-server 1.13.2-10.el7, krb5-server-ldap 1.13.2-10.el7 Red Hat Enterprise Linux ComputeNode (v. 7) krb5 1.13.2-10.el7, krb5-libs 1.13.2-10.el7, krb5-pkinit 1.13.2-10.el7, krb5-workstation 1.13.2-10.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) krb5-server 1.13.2-10.el7, krb5-server-ldap 1.13.2-10.el7
    fixed: vendor fix RHSA-2015:2154
  • Red Hat Enterprise Linux Desktop (v. 6) krb5 1.10.3-37.el6_6, krb5-libs 1.10.3-37.el6_6, krb5-workstation 1.10.3-37.el6_6, krb5-pkinit-openssl 1.10.3-37.el6_6 Red Hat Enterprise Linux Desktop Optional (v. 6) krb5-server 1.10.3-37.el6_6, krb5-server-ldap 1.10.3-37.el6_6 Red Hat Enterprise Linux HPC Node (v. 6) krb5 1.10.3-37.el6_6, krb5-libs 1.10.3-37.el6_6, krb5-workstation 1.10.3-37.el6_6, krb5-pkinit-openssl 1.10.3-37.el6_6 Red Hat Enterprise Linux HPC Node Optional (v. 6) krb5-server 1.10.3-37.el6_6, krb5-server-ldap 1.10.3-37.el6_6 Red Hat Enterprise Linux Server (v. 6) krb5 1.10.3-37.el6_6, krb5-libs 1.10.3-37.el6_6, krb5-server 1.10.3-37.el6_6, krb5-server-ldap 1.10.3-37.el6_6, krb5-workstation 1.10.3-37.el6_6, krb5-pkinit-openssl 1.10.3-37.el6_6
    fixed: vendor fix RHSA-2015:0794
  • Red Hat Enterprise Linux Server (v. 7) krb5 1.13.2-10.el7, krb5-libs 1.13.2-10.el7, krb5-pkinit 1.13.2-10.el7, krb5-server 1.13.2-10.el7, krb5-server-ldap 1.13.2-10.el7, krb5-workstation 1.13.2-10.el7
    fixed: vendor fix RHSA-2015:2154
  • Red Hat Enterprise Linux Workstation (v. 6) krb5 1.10.3-37.el6_6, krb5-libs 1.10.3-37.el6_6, krb5-server 1.10.3-37.el6_6, krb5-server-ldap 1.10.3-37.el6_6, krb5-workstation 1.10.3-37.el6_6, krb5-pkinit-openssl 1.10.3-37.el6_6
    fixed: vendor fix RHSA-2015:0794
  • Red Hat Enterprise Linux Workstation (v. 7) krb5 1.13.2-10.el7, krb5-libs 1.13.2-10.el7, krb5-pkinit 1.13.2-10.el7, krb5-server 1.13.2-10.el7, krb5-server-ldap 1.13.2-10.el7, krb5-workstation 1.13.2-10.el7
    fixed: vendor fix RHSA-2015:2154
  • Red Hat JBoss Enterprise Application Platform 6 jbossas jbossas Red Hat JBoss Enterprise Web Server 2 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

4.59% chance of exploitation in the next 30 days, higher than 91% 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

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.