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Message-ID: <1614761186.10592613.1478186149176.JavaMail.zimbra@redhat.com>
Date: Thu, 3 Nov 2016 11:15:49 -0400 (EDT)
From: Vladis Dronov <vdronov@...hat.com>
To: oss-security@...ts.openwall.com
Subject: CVE request -- linux kernel: crypto: GPF in lrw_crypt caused by
null-deref
Hello,
We would like to ask for a CVE-ID for the following security flaw.
The lrw_crypt() function in 'crypto/lrw.c' in the Linux kernel
before 4.5 allows local users to cause a system crash and a denial
of service by the NULL pointer dereference via accept(2) system call
for AF_ALG socket without calling setkey() first to set a cipher key.
Initial discussion:
https://groups.google.com/forum/#!msg/syzkaller/frb2XrB5aWk/xCXzkIBcDAAJ
Red Hat Product Security Bugzilla:
https://bugzilla.redhat.com/show_bug.cgi?id=1386286
Initial upstream patch (followed by a set of the related patches):
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dd504589577d8e8e70f51f997ad487a4cb6c026f
Best regards,
Vladis Dronov | Red Hat, Inc. | Product Security Engineer
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