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Vulnerability Details : CVE-2014-4343

Double free vulnerability in the init_ctx_reselect function in the SPNEGO initiator in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.10.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via network traffic that appears to come from an intended acceptor, but specifies a security mechanism different from the one proposed by the initiator.
Publish Date : 2014-08-14 Last Update Date : 2020-01-21
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceExecute CodeMemory corruption
CWE ID 415

- Related OVAL Definitions

Title Definition Id Class Family
AIX NAS double-free in SPNEGO oval:org.mitre.oval:def:26961 unix
DEPRECATED: SUSE-SU-2014:0989-1 -- Security update for krb5 oval:org.mitre.oval:def:27019 unix
DSA-3000-1 krb5 - security update oval:org.mitre.oval:def:25491 unix
ELSA-2014-1389 -- krb5 security and bug fix update oval:org.mitre.oval:def:27032 unix
RHSA-2014:1389: krb5 security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20141389 unix
RHSA-2014:1389: krb5 security and bug fix update (Moderate) oval:org.mitre.oval:def:26917 unix
RHSA-2015:0439: krb5 security, bug fix and enhancement update (Moderate) oval:com.redhat.rhsa:def:20150439 unix
SUSE-SU-2014:0989-1 -- Security update for krb5 oval:org.mitre.oval:def:26809 unix
USN-2310-1 -- krb5 vulnerabilities oval:org.mitre.oval:def:26458 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2014-4343

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 7.0 * * * Version Details Vulnerabilities
2 Application MIT Kerberos 5 1.10 * * * Version Details Vulnerabilities
3 Application MIT Kerberos 5 1.10.1 * * * Version Details Vulnerabilities
4 Application MIT Kerberos 5 1.10.2 * * * Version Details Vulnerabilities
5 Application MIT Kerberos 5 1.10.3 * * * Version Details Vulnerabilities
6 Application MIT Kerberos 5 1.10.4 * * * Version Details Vulnerabilities
7 Application MIT Kerberos 5 1.11 * * * Version Details Vulnerabilities
8 Application MIT Kerberos 5 1.11.1 * * * Version Details Vulnerabilities
9 Application MIT Kerberos 5 1.11.2 * * * Version Details Vulnerabilities
10 Application MIT Kerberos 5 1.11.3 * * * Version Details Vulnerabilities
11 Application MIT Kerberos 5 1.11.4 * * * Version Details Vulnerabilities
12 Application MIT Kerberos 5 1.11.5 * * * Version Details Vulnerabilities
13 Application MIT Kerberos 5 1.12 * * * Version Details Vulnerabilities
14 Application MIT Kerberos 5 1.12.1 * * * Version Details Vulnerabilities
15 OS Redhat Enterprise Linux Desktop 7.0 * * * Version Details Vulnerabilities
16 OS Redhat Enterprise Linux Hpc Node 7.0 * * * Version Details Vulnerabilities
17 OS Redhat Enterprise Linux Server 7.0 * * * Version Details Vulnerabilities
18 OS Redhat Enterprise Linux Workstation 7.0 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 1
MIT Kerberos 5 13
Redhat Enterprise Linux Desktop 1
Redhat Enterprise Linux Hpc Node 1
Redhat Enterprise Linux Server 1
Redhat Enterprise Linux Workstation 1

- References For CVE-2014-4343
XF kerberos-cve20144343-dos(95211) CONFIRM CONFIRM
OSVDB 109390
BID 69159 MIT Kerberos 5 CVE-2014-4343 Remote Denial of Service Vulnerability Release Date:2015-01-06

- Metasploit Modules Related To CVE-2014-4343

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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