MIT Kerberos 5: Multiple vulnerabilities

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 201201-13 / mit-krb5
Release Date	January 23, 2012
Latest Revision	January 23, 2012: 1
Impact	high
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
app-crypt/mit-krb5	< 1.9.2-r1	>= 1.9.2-r1	All supported architectures

Related bugreports: #303723, #308021, #321935, #323525, #339866, #347369, #352859, #359129, #363507, #387585, #393429

Synopsis

Multiple vulnerabilities have been found in MIT Kerberos 5, the most severe of which may allow remote execution of arbitrary code.

2. Impact Information

Background

MIT Kerberos 5 is a suite of applications that implement the Kerberos network protocol.

Description

Multiple vulnerabilities have been discovered in MIT Kerberos 5. Please review the CVE identifiers referenced below for details.

Impact

A remote attacker may be able to execute arbitrary code with the privileges of the administration daemon or the Key Distribution Center (KDC) daemon, cause a Denial of Service condition, or possibly obtain sensitive information. Furthermore, a remote attacker may be able to spoof Kerberos authorization, modify KDC responses, forge user data messages, forge tokens, forge signatures, impersonate a client, modify user-visible prompt text, or have other unspecified impact.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All MIT Kerberos 5 users should upgrade to the latest version:

Code Listing 3.1: Resolution

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-crypt/mit-krb5-1.9.2-r1"

4. References

Page updated January 23, 2012

Summary: This is a Gentoo Linux Security Advisory

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