SB2014072221 - Out-of-bounds read in krb5 (Alpine package)



SB2014072221 - Out-of-bounds read in krb5 (Alpine package)

Published: July 22, 2014

Security Bulletin ID SB2014072221
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Partial DoS

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2014-4342)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 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


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

The vulnerability exists due to a boundary error in MIT Kerberos 5 (aka krb5) 1.7.x through 1.12.x before 1.12.2. A remote attacker can perform a denial of service (buffer over-read or NULL pointer dereference, and application crash) by injecting invalid tokens into a GSSAPI application session.


Remediation

Install update from vendor's website.