|
Sophos Anti-Virus ZIP Archive Denial of Service Vulnerability
|
|
Secunia Advisory:
|
SA16082
|
|
|
Release Date:
|
2005-07-15
|
|
Popularity:
|
8,950 views
|
|
|
Critical:
|
Moderately critical
|
|
Impact:
|
DoS
|
|
Where:
|
From remote
|
|
Solution Status:
|
Vendor Patch
|
|
| Software: | Sophos Anti-Virus 3.x
Sophos Anti-Virus 4.x
Sophos Anti-Virus 5.x
Sophos MailMonitor for SMTP
Sophos PureMessage for UNIX 4.x
|
|
|
Secunia CVSS-2 Score:
|
Available in Secunia business solutions 
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities
|
|
| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
|
Description:
A vulnerability has been reported in Sophos Anti-Virus, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to missing validation checks on the "Extra field length" value when scanning a ZIP archive compressed using the BZIP2 algorithm. This can be exploited to cause an infinite loop that consumes large amount of CPU resources via a malicious ZIP file with an extra field length value of "0xFFFF".
Successful exploitation prevents further scanning, but requires the non-default "Scan inside archive files" setting to be enabled.
The vulnerability has been reported in versions 3.91, 3.90, and 5.0.1. Other versions may also be affected.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
|
