6189 : Multiple Virus Scanner bzip2 Decompression DoS
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
11	568	over 8 years ago	over 4 years ago	0 times	90%

Timeline

Disclosure Date	Exploit Publish Date
2004-01-09	2004-01-09

Description

Multiple Virus Scanners contain a flaw that may allow a remote denial of service. The issue is triggered when the application attempts to decompress an excessively large bzip2 archive which will cause the antivirus product to consume a majority of the CPU resources, resulting in a loss of availability for the system.

Classification

Location: Remote / Network Access
Attack Type: Denial of Service
Impact: Loss of Availability
Exploit: Exploit Public
Disclosure: OSVDB Verified

Solution

Consult your vendor for an appropriate patch or upgrade.

Products

AMaViS	AMaViS	0.2 pre-4
		0.2 pre-5
		0.2 pre6-20000604
		0.2 pre6-20000704
		0.3.12
		0.3.12 pre6
		0.3.12 pre7
		0.3.12 pre8
	amavisd	0.1
		snapshot-20020300
		snapshot-20020531

Kaspersky Lab ZAO.

Kaspersky Antivirus for Linux Servers

5.0.1.0

McAfee, Inc.

Virus Scan for Linux

4.16.0

Trend Micro, Inc.

InterScan VirusWall

3.8 Build 1130

References

Secunia Advisory ID: 10596
ISS X-Force ID: 14197
Bugtraq ID: 9393
Generic Exploit URL: ftp://ftp.aerasec.de/pub/advisories/bzip2bomb/
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2004-01/0073.html
Vendor Specific Advisory URL: http://kb.trendmicro.com/solutions/solutionDetail.asp?solutionId=18198
http://www.amavis.org/security/asa-2004-1.txt
Vendor URL: http://us.mcafee.com/
http://www.amavis.org/
http://www.kaspersky.com/index.html
Other Advisory URL: http://www.aerasec.de/security/advisories/txt/bzip2bomb-antivirusengines.txt

Credit

Dr. Peter Bieringer - pbieringeraerasec.de - AERAsec Network Services and Security

CVSSv2 Score

We currently have no CVSS2 data on this vulnerability. Feel free to suggest it.

Blogs

This product uses the Daylife API but is not endorsed or certified by Daylife.

This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

None found at this time

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