7.8
HIGH
CVE-2014-4344
MIT Kerberos 5 NULL pointer dereference in SPNEGO Acceptore
Description

The acc_ctx_cont function in the SPNEGO acceptor in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty continuation token at a certain point during a SPNEGO negotiation.

INFO

Published Date :

Aug. 14, 2014, 5:01 a.m.

Last Modified :

Jan. 21, 2020, 3:46 p.m.

Remotely Exploitable :

Yes !

Impact Score :

6.9

Exploitability Score :

10.0
Affected Products

The following products are affected by CVE-2014-4344 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat enterprise_linux_desktop
2 Redhat enterprise_linux_server
3 Redhat enterprise_linux_workstation
4 Redhat enterprise_linux_hpc_node
1 Debian debian_linux
1 Mit kerberos_5

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2014-4344 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2014-4344 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.12.1:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.12.1:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.12:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.12:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.11.5:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.11.5:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.11.4:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.11.4:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.11.3:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.11.3:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.11.2:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.11.2:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.11.1:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.11.1:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.11:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.11:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.10.4:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.10.4:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.10.3:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.10.3:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.10.2:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.10.2:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.10.1:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.10.1:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 21, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:mit:kerberos:5-1.10:*:*:*:*:*:*:* OR *cpe:2.3:a:mit:kerberos_5:1.10:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Aug. 29, 2017

    Action Type Old Value New Value
    Removed Reference http://xforce.iss.net/xforce/xfdb/95210 [No Types Assigned]
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/95210 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 07, 2017

    Action Type Old Value New Value
    Added Reference https://github.com/krb5/krb5/commit/524688ce87a15fc75f87efc8c039ba4c7d5c197b [No Types Assigned]
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1121877 [No Types Assigned]
    Added Reference http://xforce.iss.net/xforce/xfdb/95210 [No Types Assigned]
    Added Reference http://www.securitytracker.com/id/1030706 [No Types Assigned]
    Added Reference http://www.securityfocus.com/bid/69160 [No Types Assigned]
    Added Reference http://www.osvdb.org/109389 [No Types Assigned]
    Added Reference http://www.mandriva.com/security/advisories?name=MDVSA-2014:165 [No Types Assigned]
    Added Reference http://support.f5.com/kb/en-us/solutions/public/15000/500/sol15561.html [No Types Assigned]
    Added Reference http://secunia.com/advisories/61051 [No Types Assigned]
    Added Reference http://secunia.com/advisories/60448 [No Types Assigned]
    Added Reference http://secunia.com/advisories/60082 [No Types Assigned]
    Added Reference http://secunia.com/advisories/59102 [No Types Assigned]
    Added Reference http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136360.html [No Types Assigned]
    Added Reference http://aix.software.ibm.com/aix/efixes/security/nas_advisory1.asc [No Types Assigned]
    Added Reference http://advisories.mageia.org/MGASA-2014-0345.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Aug. 26, 2016

    Action Type Old Value New Value
    Changed CPE Configuration Configuration 1 OR *cpe:2.3:a:mit:kerberos:5-1.11.5:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.12:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.12.1:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.10:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.10.1:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.10.2:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.10.3:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.10.4:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.11:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.11.1:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.11.2:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.11.3:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.11.4:*:*:*:*:*:*:* Configuration 1 OR *cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Configuration 3 OR *cpe:2.3:a:mit:kerberos:5-1.11.5:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.12:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.12.1:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.10:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.10.1:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.10.2:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.10.3:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.10.4:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.11:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.11.1:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.11.2:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.11.3:*:*:*:*:*:*:* *cpe:2.3:a:mit:kerberos:5-1.11.4:*:*:*:*:*:*:*
    Changed Reference Type http://rhn.redhat.com/errata/RHSA-2015-0439.html No Types Assigned http://rhn.redhat.com/errata/RHSA-2015-0439.html Third Party Advisory
    Changed Reference Type https://github.com/krb5/krb5/commit/a7886f0ed1277c69142b14a2c6629175a6331edc Vendor Advisory https://github.com/krb5/krb5/commit/a7886f0ed1277c69142b14a2c6629175a6331edc Third Party Advisory, Issue Tracking, Patch
    Changed Reference Type http://krbdev.mit.edu/rt/Ticket/Display.html?id=7970 No Types Assigned http://krbdev.mit.edu/rt/Ticket/Display.html?id=7970 Third Party Advisory, Issue Tracking
    Changed Reference Type http://www.debian.org/security/2014/dsa-3000 No Types Assigned http://www.debian.org/security/2014/dsa-3000 Third Party Advisory
    Added CWE CWE-476
  • CVE Modified by [email protected]

    Mar. 12, 2015

    Action Type Old Value New Value
    Added Reference http://rhn.redhat.com/errata/RHSA-2015-0439.html
  • Initial Analysis by [email protected]

    Aug. 14, 2014

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2014-4344 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2014-4344 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

11.69 }} -3.96%

score

0.95317

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability