Date: Sat, 24 Aug 2013 01:36:05 GMT From: Steven Lee <steven@roothosts.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/181496: Patch for CVE-2013-3077 (integer overflow in IP_MSFILTER) breaks dhclient Message-ID: <201308240136.r7O1a5fM098033@oldred.freebsd.org> Resent-Message-ID: <201308240140.r7O1e0Hq025368@freefall.freebsd.org>
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>Number: 181496 >Category: kern >Synopsis: Patch for CVE-2013-3077 (integer overflow in IP_MSFILTER) breaks dhclient >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Aug 24 01:40:00 UTC 2013 >Closed-Date: >Last-Modified: >Originator: Steven Lee >Release: releng/9.2 >Organization: Root Hosts >Environment: FreeBSD box.localnet 9.2-RC2 FreeBSD 9.2-RC2 #1 r254680M: Fri Aug 23 07:44:25 UTC 2013 root@box.localnet:/sys/amd64/compile/GENERIC amd64 >Description: After applying the security patch dhclient doesn't work. Reverting the patch fixes it again. Tested on 9.2-RC2 and 9.1-RELEASE-p*. Same behaviour. A tcpdump shows the broadcast to 255.255.255.255 port 67 for the address request including my MAC address and the reply from the dhcp server, however dhclient just times every time. >How-To-Repeat: Apply the patch for CVE-2013-3077 to 9.1 or 9.2 and try to use dhclient to obtain an IP address. >Fix: Revert the patch (which is probably not what people really want). >Release-Note: >Audit-Trail: >Unformatted:
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