[gentoo-announce] [ GLSA 200809-15 ] GNU ed: User-assisted execution of arbitrary code

[news 28]

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Gentoo Linux Security Advisory GLSA 200809-15

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http://security.gentoo.org/

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Severity: Normal

Title: GNU ed: User-assisted execution of arbitrary code

Date: September 23, 2008

Bugs: #236521

ID: 200809-15

 

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Synopsis

========

 

A buffer overflow vulnerability in ed may allow for the remote

execution of arbitrary code.

 

Background

==========

 

GNU ed is a basic line editor. red is a restricted version of ed that

does not allow shell command execution.

 

Affected packages

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

 

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

Package / Vulnerable / Unaffected

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

1 sys-apps/ed < 1.0 >= 1.0

 

Description

===========

 

Alfredo Ortega from Core Security Technologies reported a heap-based

buffer overflow in the strip_escapes() function when processing overly

long filenames.

 

Impact

======

 

A remote attacker could entice a user to process specially crafted

commands with ed or red, possibly resulting in the execution of

arbitrary code with the privileges of the user running the application.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

All GNU ed users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=sys-apps/ed-1.0"

 

References

==========

 

[ 1 ] CVE-2008-3916

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3916

 

Availability

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

 

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

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-200809-15.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