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Date: Fri Aug 24 2007 - 14:15:01 CDT
Vendor: Sophos, http://www.sophos.com
Sophos Anti-Virus for Windows
Sophos Anti-Virus for Unix/Linux
Vulnerability: Arbitrary Code Execution (remote)
2007/05/07 initial notification to Sophos
2007/05/09 Sophos Response
2007/05/14 PGP public keys exchange
2007/05/14 PoC files sent to Sophos
2007/05/17 Sophos acknowledged the PoC files
2007/05/17 Sophos Corporation validate the Vulnerability
2007/05/17 Sophos notify tentative update release date
2007/07/31 Sophos notify a delay in the update release date
2007/08/23 Sophos Update with fixes released
Sophos is a world leader in IT security and control solutions purpose-built
for business, education, government organizations and service providers.
Their reliably engineered, easy-to-operate products protect over 100 million
users in more than 150 countries from viruses, spyware, adware, Trojans,
intrusion, spam, policy abuse, and uncontrolled network access.
A remotely exploitable vulnerability has been found in the file parsing
In detail, the following flaw was determined:
- Infinite Loop in UPX packed files parsing
This problem can lead to remote denial of service or arbitrary code
execution if an attacker carefully crafts a file that exploits the
aforementioned vulnerability. The vulnerability is present in Sophos
Anti-virus software listed above on all platforms supported by the affected
products prior to the engine Version 2.48.0.
The vulnerability was reported on 07.May.2007 and an update has been issued
on 23.Aug.2007 to solve this vulnerability. For detailed information about
the fixes follow the link in the References  section of this document.
n.runs AG wants to highlight the excellent and fluent communication with
Bugs found by Sergio Alvarez of n.runs AG.
This Advisory and Upcoming Advisories:
Unaltered electronic reproduction of this advisory is permitted. For all
other reproduction or publication, in printing or otherwise, contact
securitynruns.com for permission. Use of the advisory constitutes
acceptance for use in an "as is" condition. All warranties are excluded. In
no event shall n.runs be liable for any damages whatsoever including direct,
indirect, incidental, consequential, loss of business profits or special
damages, even if n.runs has been advised of the possibility of such damages.
Full-Disclosure - We believe in it.
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