6897 : Ethereal UCP Dissector Handle Int-Field Overflow
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
3	173	over 7 years ago	over 3 years ago	0 times	85%

Timeline

Disclosure Date
2001-10-08

Description

A remote overflow exists in Ethereal. The UCP Dissector fails to check the boundary of the Integer field resulting in a stack overflow. With a specially crafted request, an attacker can execute arbitrary code resulting in a loss of integrity. This can only be exploited if the system has a MTU bigger than BUFSIZ, which may limit which platforms are susceptable.

Classification

Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Disclosure: OSVDB Verified

Solution

Upgrade to version 0.9.0 or higher, as it has been reported to fix this vulnerability. It is also possible to correct the flaw by implementing the following workaround: Disable the dissector

Products

Ethereal	Ethereal	0.8.14
		0.8.15
		0.8.16
		0.8.17-a
		0.8.18
		0.8.19
		0.8.20

References

Secunia Advisory ID: 11744
ISS X-Force ID: 15569
CVE ID: 2004-0176 (see also: NVD)
Related OSVDB ID: 4490 6887 6888 6889 6890 6891 6892 6893 6894 6895 6896 6898
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2004-03/0227.html
Vendor Specific Advisory URL: http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000835
http://www.debian.org/security/2004/dsa-511
http://www.ethereal.com/appnotes/enpa-sa-00013.html
http://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:024
Other Advisory URL: http://security.e-matters.de/advisories/032004.html
Vendor URL: http://www.ethereal.com/
RedHat RHSA: RHSA-2004:136-09 RHSA-2004:137-07

Tools & Filters

	12482 12537 14123 15348 20706

Credit

Stefan Esser - sesserhardened-php.net - www.hardened-php.net

CVSSv2 Score

CVSSv2 Base Score = 5.0
Source: nvd.nist.gov | Generated: 2003-12-31 | Disagree?

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.

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