Clam AntiVirus pefromupx() buffer overflow
| clamav-pefromupx-bo (28286) |  High Risk |
Description:
Clam AntiVirus is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the pefromupx() function in libclamav/upx.c. By sending a specially-crafted compressed UPX file in an email, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the service to crash.
Platforms Affected:
- Clam Anti-Virus, ClamAV 0.8.8.2
- Clam Anti-Virus, ClamAV 0.8.8.3
- Debian, Debian Linux 3.1
- Gentoo, Linux
- MandrakeSoft, Mandrake Linux 2006 X86_64
- MandrakeSoft, Mandrake Linux 2006
- MandrakeSoft, Mandrake Linux Corporate Server 3.0
- MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
- SuSE, SuSE Linux 10.0
- SuSE, SuSE Linux 10.1
- SuSE, SuSE Linux 9.2
- SuSE, SuSE Linux 9.3
- SuSE, SuSE SLES 10
- SuSE, SuSE SLES 9
Remedy:
Upgrade to the latest version of Clam AntiVirus (0.88.4 or later), available from SourceForge.net. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 200608-13 for patch, upgrade, or suggested workaround information. See References.
For Debian GNU/Linux:
Refer to DSA-1153-1 for patch, upgrade, or suggested workaround information. See References.
For SUSE Linux:
Refer to SUSE-SA:2006:046 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Access
References:
- Overflow.pl Security Advisory #6, Clam AntiVirus Win32-UPX Heap Overflow at http://www.overflow.pl/adv/clamav_upx_heap.txt.
- SourceForge.net: Files, Clam AntiVirus at http://sourceforge.net/project/showfiles.php?group_id=86638.
- BID-19381: Clam Anti-Virus ClamAV UPX Compressed PE File Heap Buffer Overflow Vulnerability
- CVE-2006-4018: Heap-based buffer overflow in the pefromupx function in libclamav/upx.c in Clam AntiVirus (ClamAV) 0.81 through 0.88.3 allows remote attackers to execute arbitrary code via a crafted UPX packed file containing sections with large rsize values.
- DSA-1153: clamav -- buffer overflow
- GLSA-200608-13: ClamAV: Heap buffer overflow
- MDKSA-2006:138: Updated clamav packages fix vulnerability
- SA21374: Clam AntiVirus pefromupx() Buffer Overflow Vulnerability
- SA21497: Kolab Server ClamAV Buffer Overflow Vulnerability
- SECTRACK ID: 1016645: Clam AntiVirus Heap Overflow in pefromupx() in Processing UPX Files Lets Remote Users Execute Arbitrary Code
- SUSE-SA:2006:046: clamav security problem
- VUPEN/ADV-2006-3175: Clam AntiVirus pefromupx() Function UPX File Handling Remote Buffer Overflow Vulnerability
- VUPEN/ADV-2006-3275: Kolab Server Security Update Fixes Clamav pefromupx() Buffer Overflow Vulnerability
Reported:
Aug 07, 2006
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