Clam AntiVirus libclamav/upx.c buffer overflow
| clamav-libclamav-upx-bo (24047) |  High Risk |
Description:
Clam AntiVirus is vulnerable to a heap-based buffer overflow in libclamav/upx.c. By creating a malicious UPX file, and sending it to a vulnerable system as an email attachment, a remote attacker could overflow a buffer and execute arbitrary code or cause the affected application to crash, once the malicious file is processed.
Platforms Affected:
- Clam Anti-Virus, ClamAV prior to 0.88
- Debian, Debian Linux 3.1
- Gentoo, Linux
- MandrakeSoft, Mandrake Linux 10.1
- MandrakeSoft, Mandrake Linux 10.1 X86_64
- MandrakeSoft, Mandrake Linux 2006 X86_64
- MandrakeSoft, Mandrake Linux 2006
- MandrakeSoft, Mandrake Linux LE2005 X86_64
- MandrakeSoft, Mandrake Linux LE2005
- MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 3.0
Remedy:
Upgrade to the latest version of Clam AntiVirus (0.88 or later), available from SourceForge.net. See References.
For Debian GNU/Linux:
Refer to DSA-947-1 for patch, upgrade, or suggested workaround information. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 2006-01-07 and GLSA 2005-11-04 for patch, upgrade, or suggested workaround information. See References.
Consequences:
Gain Access
References:
- SourceForge.net: Clam AntiVirus, Latest File Releases at http://sourceforge.net/project/showfiles.php?group_id=86638.
- SourceForge.net: Files, Clam AntiVirus Release Name: 0.88 at http://sourceforge.net/project/shownotes.php?release_id=384086.
- ZDI-06-001, Clam AntiVirus UPX Unpacking Code Execution at http://www.zerodayinitiative.com/advisories/ZDI-06-001.html.
- BID-16191: Clam Anti-Virus ClamAV UPX Compressed File Heap Buffer Overflow Vulnerability
- CVE-2005-3587: Improper boundary checks in petite.c in Clam AntiVirus (ClamAV) before 0.87.1 allows attackers to perform unknown attacks via unknown vectors.
- CVE-2006-0162: Heap-based buffer overflow in libclamav/upx.c in Clam Antivirus (ClamAV) before 0.88 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted UPX files.
- DSA-947: clamav -- heap overflow
- GLSA-200511-04: ClamAV: Multiple vulnerabilities
- GLSA-200601-07: ClamAV: Remote execution of arbitrary code
- MDKSA-2005:205: Updated clamav packages fix multiple vulnerabilities
- MDKSA-2006:016: Updated clamav packages fix vulnerability
- OSVDB ID: 22318: Clam AntiVirus UPX File Processing Overflow
- SA18379: ClamAV UPX File Handling Buffer Overflow Vulnerability
- SECTRACK ID: 1015457: Clam AntiVirus pefromupx() Buffer Overflow Has Unspecified Impact
- SUSE-SR:2006:001: SUSE Security Summary Report
- US-CERT VU#385908: Clam AntiVirus vulnerable to memory corruption via specially crafted UPX packed file
- VUPEN/ADV-2006-0116: Clam AntiVirus (ClamAV) UPX File Handling Buffer Overflow Vulnerability
Reported:
Jan 09, 2006
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