SB2006110701 - Security restrictions bypass in Linux kernel
Published: November 7, 2006
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Security restrictions bypass (CVE-ID: CVE-2006-4572)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
ip6_tables in netfilter in the Linux kernel before 2.6.16.31 allows remote attackers to (1) bypass a rule that disallows a protocol, via a packet with the protocol header not located immediately after the fragment header, aka 'ip6_tables protocol bypass bug;' and (2) bypass a rule that looks for a certain extension header, via a packet with an extension header outside the first fragment, aka 'ip6_tables extension header bypass bug.'
Remediation
Install update from vendor's website.
References
- http://readlist.com/lists/vger.kernel.org/linux-kernel/55/275979.html
- http://secunia.com/advisories/22731
- http://secunia.com/advisories/22762
- http://www.securityfocus.com/bid/20955
- http://www.kernel.org/git/?p=linux%2Fkernel%2Fgit%2Fstable%2Flinux-2.6.16.y.git&a=search&s=CVE-2006-4572
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.31
- http://www.ubuntu.com/usn/usn-395-1
- http://secunia.com/advisories/23384
- http://www.novell.com/linux/security/advisories/2006_79_kernel.html
- http://www.ubuntu.com/usn/usn-416-1
- http://secunia.com/advisories/24098
- http://www.securityfocus.com/archive/1/471457
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:197
- http://secunia.com/advisories/25691
- http://secunia.com/advisories/23474
- http://www.vupen.com/english/advisories/2006/4386
- http://www.kernel.org/git/?p=linux/kernel/git/stable/linux-2.6.16.y.git%3Ba=commit%3Bh=0ddfcc96928145d6a6425fdd26dad6abfe7f891d
- http://www.kernel.org/git/?p=linux/kernel/git/stable/linux-2.6.16.y.git%3Ba=commit%3Bh=6ac62be885810e1f8390f0c3b9d3ee451d3d3f19