Main Vulnerability Database Vulnerabilities #VU63966

NULL pointer dereference in Kerberos 5 - CVE-2014-4344

Published: June 3, 2022

Vulnerability identifier: #VU63966

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2014-4344

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5. A remote attacker can trigger denial of service conditions via an empty continuation token at a certain point during a SPNEGO negotiation.

Affected software

Kerberos 5
IBM DataPower Gateway

How to mitigate CVE-2014-4344

Install update from vendor's website.

Kerberos 5 - update to 1.12.2
IBM DataPower Gateway - addressed in versions 10.0.1.5, 10.0.4.0, 2018.4.1.18

External References

Related Security Bulletins