SB2011102103 - Input validation error in MIT Kerberos 5

Description

This security bulletin contains information about 1 vulnerability.

1) Input validation error (CVE-ID: CVE-2011-4151)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

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

The krb5_db2_lockout_audit function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4, when the db2 (aka Berkeley DB) back end is used, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors, a different vulnerability than CVE-2011-1528.

Remediation

Install update from vendor's website.

References

• http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txt
• http://www.kb.cert.org/vuls/id/659251
• https://exchange.xforce.ibmcloud.com/vulnerabilities/70891