[gentoo-announce] [ GLSA 200903-21 ] cURL: Arbitrary file access

[news 28]

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Gentoo Linux Security Advisory GLSA 200903-21

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http://security.gentoo.org/

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Severity: Normal

Title: cURL: Arbitrary file access

Date: March 09, 2009

Bugs: #260361

ID: 200903-21

 

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Synopsis

========

 

A vulnerability in cURL may allow for arbitrary file access.

 

Background

==========

 

cURL is a command line tool for transferring files with URL syntax,

supporting numerous protocols.

 

Affected packages

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

 

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

Package / Vulnerable / Unaffected

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

1 net-misc/curl < 7.19.4 >= 7.19.4

 

Description

===========

 

David Kierznowski reported that the redirect implementation accepts

arbitrary Location values when CURLOPT_FOLLOWLOCATION is enabled.

 

Impact

======

 

A remote attacker could possibly exploit this vulnerability to make

remote HTTP servers trigger arbitrary requests to intranet servers and

read or overwrite arbitrary files via a redirect to a file: URL, or, if

the libssh2 USE flag is enabled, execute arbitrary commands via a

redirect to an scp: URL.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

All cURL users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=net-misc/curl-7.19.4"

 

References

==========

 

[ 1 ] CVE-2009-0037

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0037

 

Availability

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

 

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

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-200903-21.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 2009 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