Cryptographic issues in Kerberos - CVE-2011-0281

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU45331

Cryptographic issues in Kerberos - CVE-2011-0281

Published: February 10, 2011 / Updated: August 11, 2020


Vulnerability identifier: #VU45331
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2011-0281
CWE-ID: CWE-310
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: MIT
Affected software:
Kerberos

Detailed vulnerability description

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.


How to mitigate CVE-2011-0281

Install update from vendor's website.

Sources