CVE-2014-4342

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.

Published: 2014-07-20 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-4342 is rated Moderate Risk (50.9/100): CVSS Medium severity, with high exploitation likelihood (EPSS 6.52%, 93th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2014-4342

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 8.14% 6.52% -1.62%
2 2025-11-09 7.31% 8.14% +0.83%
3 2025-04-05 — 7.31% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-4342

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2014-4342

OS Trackers for CVE-2014-4342

vendor priority summary link
debian not yet assigned CVE-2014-4342 not yet assigned priority: Debian including 1 source packages (krb5), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2014-4342
redhat low — https://access.redhat.com/security/cve/CVE-2014-4342
suse medium CVE-2014-4342 severity moderate: SUSE including 107 source package names (krb5, krb5-1.12.1-19.1, …), 322 product×package rows across 50 product lines (HPE Helion OpenStack 8, Magnum Orchestration 7, … (50 product lines)): Fixed 175, Known Not Affected 147. https://www.suse.com/security/cve/CVE-2014-4342/
ubuntu medium CVE-2014-4342 medium priority: Ubuntu including 1 source packages (krb5), 5 status rows across 5 suites (lucid, precise, saucy, trusty, upstream): released 4, ignored 1. https://ubuntu.com/security/CVE-2014-4342

Affected software / configurations for CVE-2014-4342

Vendor Product Version Raw CPE
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
mit kerberos 5-1.8 cpe:2.3:a:mit:kerberos:5-1.8:alpha1:*:*:*:*:*:*
mit kerberos 5-1.10.5 cpe:2.3:a:mit:kerberos:5-1.10.5:*:*:*:*:*:*:*
mit kerberos 5-1.10.6 cpe:2.3:a:mit:kerberos:5-1.10.6:*:*:*:*:*:*:*
mit kerberos 5-1.10.7 cpe:2.3:a:mit:kerberos:5-1.10.7:*:*:*:*:*:*:*
mit kerberos_5 1.7 cpe:2.3:a:mit:kerberos_5:1.7:*:*:*:*:*:*:*
mit kerberos_5 1.7.1 cpe:2.3:a:mit:kerberos_5:1.7.1:*:*:*:*:*:*:*
mit kerberos_5 1.8 cpe:2.3:a:mit:kerberos_5:1.8:*:*:*:*:*:*:*
mit kerberos_5 1.8.1 cpe:2.3:a:mit:kerberos_5:1.8.1:*:*:*:*:*:*:*
mit kerberos_5 1.8.2 cpe:2.3:a:mit:kerberos_5:1.8.2:*:*:*:*:*:*:*
mit kerberos_5 1.8.3 cpe:2.3:a:mit:kerberos_5:1.8.3:*:*:*:*:*:*:*
mit kerberos_5 1.8.4 cpe:2.3:a:mit:kerberos_5:1.8.4:*:*:*:*:*:*:*
mit kerberos_5 1.8.5 cpe:2.3:a:mit:kerberos_5:1.8.5:*:*:*:*:*:*:*
mit kerberos_5 1.8.6 cpe:2.3:a:mit:kerberos_5:1.8.6:*:*:*:*:*:*:*
mit kerberos_5 1.9 cpe:2.3:a:mit:kerberos_5:1.9:*:*:*:*:*:*:*
mit kerberos_5 1.9.1 cpe:2.3:a:mit:kerberos_5:1.9.1:*:*:*:*:*:*:*
mit kerberos_5 1.9.2 cpe:2.3:a:mit:kerberos_5:1.9.2:*:*:*:*:*:*:*
mit kerberos_5 1.9.3 cpe:2.3:a:mit:kerberos_5:1.9.3:*:*:*:*:*:*:*
mit kerberos_5 1.9.4 cpe:2.3:a:mit:kerberos_5:1.9.4:*:*:*:*:*:*:*
mit kerberos_5 1.10 cpe:2.3:a:mit:kerberos_5:1.10:*:*:*:*:*:*:*
mit kerberos_5 1.10.1 cpe:2.3:a:mit:kerberos_5:1.10.1:*:*:*:*:*:*:*
mit kerberos_5 1.10.2 cpe:2.3:a:mit:kerberos_5:1.10.2:*:*:*:*:*:*:*
mit kerberos_5 1.10.3 cpe:2.3:a:mit:kerberos_5:1.10.3:*:*:*:*:*:*:*
mit kerberos_5 1.10.4 cpe:2.3:a:mit:kerberos_5:1.10.4:*:*:*:*:*:*:*
mit kerberos_5 1.11 cpe:2.3:a:mit:kerberos_5:1.11:*:*:*:*:*:*:*
mit kerberos_5 1.11.1 cpe:2.3:a:mit:kerberos_5:1.11.1:*:*:*:*:*:*:*
mit kerberos_5 1.11.2 cpe:2.3:a:mit:kerberos_5:1.11.2:*:*:*:*:*:*:*
mit kerberos_5 1.11.3 cpe:2.3:a:mit:kerberos_5:1.11.3:*:*:*:*:*:*:*
mit kerberos_5 1.11.4 cpe:2.3:a:mit:kerberos_5:1.11.4:*:*:*:*:*:*:*
mit kerberos_5 1.12 cpe:2.3:a:mit:kerberos_5:1.12:*:*:*:*:*:*:*
mit kerberos_5 1.12.1 cpe:2.3:a:mit:kerberos_5:1.12.1:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_hpc_node 7.0 cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*

References for CVE-2014-4342

URL Tags
http://advisories.mageia.org/MGASA-2014-0345.html Third Party Advisory
http://krbdev.mit.edu/rt/Ticket/Display.html?id=7949 Issue Tracking Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2015-0439.html Third Party Advisory
http://secunia.com/advisories/59102 Not Applicable
http://secunia.com/advisories/60082 Not Applicable
http://www.debian.org/security/2014/dsa-3000 Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2014:165 Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html Patch Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/68908 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1030706 Third Party Advisory VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/94903 Third Party Advisory VDB Entry
https://github.com/krb5/krb5/commit/e6ae703ae597d798e310368d52b8f38ee11c6a73 Issue Tracking Patch Third Party Advisory
cvelogic Threat Intelligence