[gentoo-announce] [ GLSA 200805-03 ] Multiple X11 terminals: Local privilege escalation

[news 28]

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Gentoo Linux Security Advisory GLSA 200805-03

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

http://security.gentoo.org/

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 

Severity: Normal

Title: Multiple X11 terminals: Local privilege escalation

Date: May 07, 2008

Bugs: #216833, #217819, #219746, #219750, #219754, #219760, #219762

ID: 200805-03

 

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 

Synopsis

========

 

A vulnerability was found in aterm, Eterm, Mrxvt, multi-aterm, RXVT,

rxvt-unicode, and wterm, allowing for local privilege escalation.

 

Background

==========

 

Aterm, Eterm, Mrxvt, multi-aterm, RXVT, rxvt-unicode, and wterm are X11

terminal emulators.

 

Affected packages

=================

 

-------------------------------------------------------------------

Package / Vulnerable / Unaffected

-------------------------------------------------------------------

1 x11-terms/aterm < 1.0.1-r1 >= 1.0.1-r1

2 x11-terms/eterm < 0.9.4-r1 >= 0.9.4-r1

3 x11-terms/mrxvt < 0.5.3-r2 >= 0.5.3-r2

4 x11-terms/multi-aterm < 0.2.1-r1 >= 0.2.1-r1

5 x11-terms/rxvt < 2.7.10-r4 >= 2.7.10-r4

6 x11-terms/rxvt-unicode < 9.02-r1 >= 9.02-r1

7 x11-terms/wterm < 6.2.9-r3 >= 6.2.9-r3

-------------------------------------------------------------------

7 affected packages on all of their supported architectures.

-------------------------------------------------------------------

 

Description

===========

 

Bernhard R. Link discovered that Eterm opens a terminal on :0 if the

"-display" option is not specified and the DISPLAY environment variable

is not set. Further research by the Gentoo Security Team has shown that

aterm, Mrxvt, multi-aterm, RXVT, rxvt-unicode, and wterm are also

affected.

 

Impact

======

 

A local attacker could exploit this vulnerability to hijack X11

terminals of other users.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

All aterm users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=x11-terms/aterm-1.0.1-r1"

 

All Eterm users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=x11-terms/eterm-0.9.4-r1"

 

All Mrxvt users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=x11-terms/mrxvt-0.5.3-r2"

 

All multi-aterm users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=x11-terms/multi-aterm-0.2.1-r1"

 

All RXVT users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=x11-terms/rxvt-2.7.10-r4"

 

All rxvt-unicode users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=x11-terms/rxvt-unicode-9.02-r1"

 

All wterm users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=x11-terms/wterm-6.2.9-r3"

 

References

==========

 

[ 1 ] CVE-2008-1142

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1142

[ 2 ] CVE-2008-1692

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1692

 

Availability

============

 

This GLSA and any updates to it are available for viewing at

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-200805-03.xml

 

Concerns?

=========

 

Security is a primary focus of Gentoo Linux and ensuring the

confidentiality and security of our users machines is of utmost

importance to us. Any security concerns should be addressed to

security ( -at -) gentoo.org or alternatively, you may file a bug at

http://bugs.gentoo.org.

 

License

=======

 

Copyright 2008 Gentoo Foundation, Inc; referenced text

belongs to its owner(s).

 

The contents of this document are licensed under the

Creative Commons - Attribution / Share Alike license.

 

http://creativecommons.org/licenses/by-sa/2.5