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CVE-2006-4304

Status Candidate

Overview

Buffer overflow in the sppp driver in FreeBSD 4.11 through 6.1, NetBSD 2.0 through 4.0 beta before 20060823, and OpenBSD 3.8 and 3.9 before 20060902 allows remote attackers to cause a denial of service (panic), obtain sensitive information, and possibly execute arbitrary code via crafted Link Control Protocol (LCP) packets with an option length that exceeds the overall length, which triggers the overflow in (1) pppoe and (2) ippp. NOTE: this issue was originally incorrectly reported for the ppp driver.

Related Files

FreeBSD-SA-06-08.ppp.txt
Posted Aug 28, 2006
Site freebsd.org

FreeBSD Security Advisory - While processing Link Control Protocol (LCP) configuration options received from the remote host, ppp fails to correctly validate option lengths. This may result in data being read or written beyond the allocated kernel memory buffer.

tags | remote, kernel, protocol
systems | freebsd
advisories | CVE-2006-4304
SHA-256 | 1a505aa71e5062892602bad3342291e7924f5588a8db8ea6bfbcdaa4e12a0f6d
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