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>> NetBSD Security Update Fixes PPPoE Invalid Memory Access Issue

Title : NetBSD Security Update Fixes PPPoE Invalid Memory Access Issue
VUPEN ID : VUPEN/ADV-2008-2435
CVE ID : CVE-2008-3584
CWE ID : CWE-126
Rated as : Moderate Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2008-08-25


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format 

A vulnerability has been identified in NetBSD, which could be exploited by attackers to cause a denial of service or potentially compromise a vulnerable system. This issue is caused by an error in range checking when handling packets while establishing PPPoE connections, which could allow a malicious packet to cause the kernel to access memory outside of the allocated buffer, leading to a crash or potentially arbitrary code execution.

Affected Products

NetBSD-current
NetBSD 4.0
NetBSD 3.x

Solution

Upgrade the kernel :
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2008-010.txt.asc

References

http://www.vupen.com/english/advisories/2008/2435
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2008-010.txt.asc

Credits

Vulnerability reported by Yasuoka Masahiko (Internet Initiative Japan Inc).

ChangeLog

2008-08-25 : Initial release

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