Clam AntiVirus rebuildpe.c buffer overflow
| clamav-rebuildpe-bo (29607) |  High Risk |
Description:
Clam AntiVirus is vulnerable to a heap-based buffer overflow, caused by an integer overflow in rebuildpe.c when processing Portable Executable (PE) files. By passing a malicious executable file with overly long variables through the scanning engine, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the affected application to crash.
Platforms Affected:
- Apple, Mac OS X Server 10.4.8
- Clam Anti-Virus, ClamAV 0.88.4 and prior
- Debian, Debian Linux 3.1
- Gentoo, Linux
- MandrakeSoft, Mandrake Linux 2006
- MandrakeSoft, Mandrake Linux 2006 X86_64
- MandrakeSoft, Mandrake Linux 2007 X86_64
- MandrakeSoft, Mandrake Linux 2007
- MandrakeSoft, Mandrake Linux Corporate Server 3.0
- MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 4.0 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 4.0
- Novell, Linux POS 9
- Novell, Open Enterprise Server
- Novell, Open Enterprise Server
- SuSE, SuSE SLES 10
- SuSE, SuSE SLES 9
Remedy:
Upgrade to the latest version of Clam AntiVirus (0.88.5 or later), available from SourceForge.net. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 200610-10 for patch, upgrade, or suggested workaround information. See References.
For Debian GNU/Linux:
Refer to DSA-1196-1 for patch, upgrade, or suggested workaround information. See References.
Apply Apple Security Update 2006-007, available from the Apple Web site. See References.
For SUSE Linux:
Refer to SUSE-SA:2006:060 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Access
References:
- Apple Security Update 2006-007, About the security content of Security Update 2006-007 at http://docs.info.apple.com/article.html?artnum=304829.
- iDefense Labs PUBLIC ADVISORY: 10.15.06, Clam AntiVirus ClamAV rebuildpe Heap Overflow Vulnerability at http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=422.
- SourceForge.net: Files, Clam AntiVirus - File Release Notes and Changelog - Release Name: 0.88.5 at http://sourceforge.net/project/shownotes.php?release_id=455799.
- BID-20535: Clam Anti-Virus PE Rebuilding Heap Buffer Overflow Vulnerability
- CVE-2006-4182: Integer overflow in ClamAV 0.88.1 and 0.88.4, and other versions before 0.88.5, allows remote attackers to cause a denial of service (scanning service crash) and execute arbitrary code via a crafted Portable Executable (PE) file that leads to a heap-based buffer overflow when less memory is allocated than expected.
- DSA-1196: clamav -- several vulnerabilities
- GLSA-200610-10: ClamAV: Multiple Vulnerabilities
- MDKSA-2006:184: Updated clamav packages fix vulnerabilities
- SA22370: Clam AntiVirus CHM Unpacker and PE Rebuilding Vulnerabilities
- SA22488: Kolab Server ClamAV CHM Unpacker and PE Rebuilding Vulnerabilities
- SA22626: SnapGear Multiple Vulnerabilities
- SA23155: Mac OS X Security Update Fixes Multiple Vulnerabilities
- SECTRACK ID: 1017068: Clam AntiVirus PE File Heap Overflow Lets Remote Users Execute Arbitrary Code
- SUSE-SA:2006:060: clamav security problems
- US-CERT VU#180864: Clam AntiVirus fails to properly handle crafted Portable Executable (PE) files
- VUPEN/ADV-2006-4034: Clam AntiVirus PE Rebuilding and CHM Unpacker Code Execution and DoS Issues
- VUPEN/ADV-2006-4136: Kolab Server ClamAV Integer Overflow and Denial of Service Vulnerabilities
- VUPEN/ADV-2006-4264: SnapGear Security Update Fixes Multiple OpenSSL and ClamAV Vulnerabilities
- VUPEN/ADV-2006-4750: Apple Mac OS X Multiple Command Execution and Denial of Service Vulnerabilities
Reported:
Oct 15, 2006
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