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Date: Thu, 4 Sep 2008 12:50:18 -0400 (EDT)
From: "Steven M. Christey" <coley@...us.mitre.org>
To: oss-security@...ts.openwall.com
cc: coley@...re.org
Subject: Re: CVE request: kernel: sunrpc: fix possible overrun
on read of /proc/sys/sunrpc/transports
======================================================
Name: CVE-2008-3911
Status: Candidate
URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3911
Reference: MLIST:[linux-kernel] 20080830 Re: buffer overflow in /proc/sys/sunrpc/transports
Reference: URL:http://lkml.org/lkml/2008/8/30/184
Reference: MLIST:[linux-kernel] 20080830 buffer overflow in /proc/sys/sunrpc/transports
Reference: URL:http://lkml.org/lkml/2008/8/30/140
Reference: MLIST:[oss-security] 20080904 CVE request: kernel: sunrpc: fix possible overrun on read of /proc/sys/sunrpc/transports
Reference: URL:http://www.openwall.com/lists/oss-security/2008/09/04/2
Reference: CONFIRM:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=27df6f25ff218072e0e879a96beeb398a79cdbc8
The proc_do_xprt function in net/sunrpc/sysctl.c in the Linux kernel
2.6.26.3 does not check the length of a certain buffer obtained from
userspace, which allows local users to overflow a stack-based buffer
and have unspecified other impact via a crafted read system call for
the /proc/sys/sunrpc/transports file.
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