CVE-2009-4212

EPSS 16.5%

krb5 - denial of service

Published: 1/13/2010Modified: 4/28/2026

Description

Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5 (aka krb5) 1.3 through 1.6.3, and 1.7 before 1.7.1, allow remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code by providing ciphertext with a length that is too short to be valid.

Affected packages (2)

References (1)