FrSIRT - Clam AntiVirus Multiple Denial of Service And Code Execution Vulnerabilities / Exploit (Security Advisories)

French Security Incident Response Team

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Clam AntiVirus Multiple Denial of Service And Code Execution Vulnerabilities

Title : Clam AntiVirus Multiple Denial of Service And Code Execution Vulnerabilities
Advisory ID : FrSIRT/ADV-2007-2952
CVE ID : CVE-2007-4510 - CVE-2007-4560
Rated as : High Risk

Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2007-08-23

Advisory Details

Description

Affected Products

Solution

References

Technical Description

Multiple vulnerabilities have been identified in Clam AntiVirus (ClamAV), which could be exploited by attackers or malware to cause a denial of service or execute arbitrary code.

The first issue is caused by NULL-pointer dereference errors in the "cli_scanrtf()" [libclamav/rtf.c] and "cli_html_normalise()" [libclamav/htmlnorm.c] when processing malformed RTF or HTML files, which could be exploited by attackers to crash an affected application, creating a denial of service condition [...]

References

http://www.frsirt.com/english/advisories/2007/2952
http://sourceforge.net/project/shownotes.php?release_id=533658&group_id=86638
https://wwws.clamav.net/bugzilla/show_bug.cgi?id=582
https://wwws.clamav.net/bugzilla/show_bug.cgi?id=611
http://www.nruns.com/security_advisory_clamav_remote_code_exection.php

Credits

Vulnerabilities reported by the vendor, Stefanos Stamatis and Nikolaos Rangos (n.runs AG).

ChangeLog

2007-08-23 : Initial release
2007-09-02 : Updated Description

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