Secunia - Stay Secure
Gartner
Home Corporate Website Jobs Mailing Lists RSS Blog Advertise
Software Inspectors
  Scan Online
  Personal (PSI)
  Network (NSI 2.0)

Solutions For
  Security Professionals
  Security Vendors

Free Solutions For
  Open Communities
  Journalists & Media

Secunia Advisories
  Search
  Historic Advisories
  Listed By Product
  Listed By Vendor
  Statistics / Graphs
  Secunia Research
  Report Vulnerability
  About Advisories

Virus Information
  Chronological List
  Last 10 Virus Alerts
  About Virus Information

Secunia Customers
  Customer Area


ClamAV Multiple Vulnerabilities Advisory Available in Danish  Advisory Available in German 

Secunia Advisory: SA28117  
Release Date: 2007-12-19
Last Update: 2008-01-02

Critical:
Highly critical
Impact: DoS
System access
Unknown
Where: From remote
Solution Status: Vendor Patch

Software:Clam AntiVirus (clamav) 0.x

CVE reference:CVE-2007-6335 (Secunia mirror)
CVE-2007-6336 (Secunia mirror)
CVE-2007-6337 (Secunia mirror)

Want to know the next time vulnerabilities are fixed in this product?
- Companies can be alerted via email and SMS!


Description:
Some vulnerabilities have been reported in ClamAV, where one vulnerability has an unknown impact and others can be exploited by malicious people to cause a DoS (Denial of Service) or compromise a vulnerable system.

1) An integer overflow error exists within the "cli_scanpe()" function when handling MEW packed executables. This can be exploited to cause a heap-based buffer overflow via specially crafted "ssize" and "dsize" values.

Successful exploitation allows execution of arbitrary code.

2) An off-by-one error exists within libclamav/mspack.c when handling MSZIP compressed files. This can be exploited to e.g. crash the scanner or potentially execute arbitrary code via a specially crafted MSZIP compressed file.

3) An boundary error exists within the bzip2 "BZ_GET_FAST()" and "BZ_GET_FAST_C()" decompression macros in libclamav/nsis/bzlib_private.h.

The vulnerabilities are reported in versions prior to 0.92.

Solution:
Update to version 0.92.

Provided and/or discovered by:
1) Discovered by an anonymous researcher and reported via iDefense Labs.
2) Reported in a bug by Török Edwin.
3) Reported via a Gentoo security advisory.

Changelog:
2007-12-20: Updated advisory to include vulnerability #2. Updated CVE references.
2008-01-02: Updated advisory to include vulnerability #3. Updated CVE references.

Original Advisory:
ClamAV:
http://sourceforge.net/project/showno...?release_id=562254&group_id=86638

iDefense:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=634

Bug 663:
https://wwws.clamav.net/bugzilla/show_bug.cgi?id=663

Gentoo:
http://www.gentoo.org/security/en/glsa/glsa-200712-20.xml



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.

27 Related Secunia Security Advisories, displaying 10

1. ClamAV Multiple Vulnerabilities
2. ClamAV Multiple Vulnerabilities
3. ClamAV Multiple Vulnerabilities
4. ClamAV RAR Archive Processing Denial of Service Vulnerability
5. ClamAV Multiple Vulnerabilities
6. Clam AntiVirus Multiple Vulnerabilities
7. ClamAV MIME Header Handling and CAB File Processing Vulnerabilities
8. Clam AntiVirus Multipart Nestings Denial of Service
9. Clam AntiVirus CHM Unpacker and PE Rebuilding Vulnerabilities
10. Clam AntiVirus pefromupx() Buffer Overflow Vulnerability

Show all related advisories


Send Feedback to Secunia

If you have new information regarding this Secunia advisory or a product in our database, please send it to us using either our web form or email us at vuln@secunia.com.

Ideas, suggestions, and other feedback are most welcome.








Secunia PSI
Scan | Patch | Track
Free Download

Secunia Poll

Do you think it's important to read Setup/User Guides for applications for use within your network?


See Results   


Most Popular Advisories

1.
Kostenloses Linkmanagements cript Multiple Vulnerabilities
2.
Linux Kernel Multiple Vulnerabilities
3.
Model Search "cat" SQL Injection Vulnerability
4.
Drupal Site Documentation Module Information Disclosure
5.
Symantec Altiris Deployment Solution Multiple Vulnerabilities
6.
68 Classifieds "cat" SQL Injection Vulnerability
7.
Oracle Application Server Portal Authentication Bypass
8.
Blender Multiple Temporary File Security Issues
9.
Microsoft Windows WMF "SETABORTPROC" Arbitrary Code Execution
10.
Interspire ActiveKB Admin Interface Cookie Security Bypass





Vulnerability Management - Terms & Conditions - Copyright 2002-2008 Secunia - Compliance - Contact Secunia