29570 : Multiple BSD systrace systrace_preprepl() Function Overflow
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
8	370	over 5 years ago	over 3 years ago	0 times	90%

Timeline

Disclosure Date
2006-10-07

Description

A local overflow exists in OpenBSD and NetBSD. systrace fails to validate data passed to the systrace_preprepl function resulting in an integer overflow. With a specially crafted request, an attacker can cause a denial of service or read arbitrary kernel memory resulting in a loss of confidentiality and/or availability.

Classification

Location: Local Access Required
Attack Type: Denial of Service, Input Manipulation
Impact: Loss of Confidentiality, Loss of Integrity, Loss of Availability
Exploit: Exploit Unknown
Disclosure: OSVDB Verified

Solution

For NetBSD, upgrade to the release indicated in the vendor advisory as it has been reported to fix this vulnerability.

OpenBSD has released a patch to address this vulnerability.

Products

NetBSD Foundation, Inc.	NetBSD	3.0.1
		3.0
		2.1
		2.0.x
		2.0

OpenBSD	OpenBSD	3.8
		3.9

References

Security Tracker: 1017009
CVE ID: 2006-5218 (see also: NVD)
Bugtraq ID: 20392
Secunia Advisory ID: 22324
ISS X-Force ID: 29392
Vendor Specific Advisory URL: http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2006-024.txt.asc
http://openbsd.org/errata38.html#systrace
http://openbsd.org/errata39.html#systrace
Other Advisory URL: http://scary.beasts.org/security/CESA-2006-003.html

Credit

Chris Evans - chrisscary.beasts.org -

CVSSv2 Score

CVSSv2 Base Score = 4.6
Source: nvd.nist.gov | Generated: 2006-10-12 | Disagree?

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