SB2011021004 - Multiple vulnerabilities in MIT Kerberos

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2011021004

SB2011021004 - Multiple vulnerabilities in MIT Kerberos

Published: February 10, 2011 Updated: May 27, 2022

Security Bulletin ID SB2011021004
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Cryptographic issues (CVE-ID: CVE-2011-0281)

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The unparse implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.6.x through 1.9, when an LDAP backend is used, allows remote attackers to cause a denial of service (file descriptor exhaustion and daemon hang) via a principal name that triggers use of a backslash escape sequence, as demonstrated by a sequence.


2) Input validation error (CVE-ID: CVE-2011-0282)

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (NULL pointer dereference or buffer over-read, and daemon crash) via a crafted principal name.


Remediation

Install update from vendor's website.

References