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Date: Tue, 30 May 2017 21:12:52 +0200
From: Andrey Konovalov <andreyknvl@...gle.com>
To: oss-security@...ts.openwall.com
Cc: Dmitry Vyukov <dvyukov@...gle.com>, Kostya Serebryany <kcc@...gle.com>
Subject: Linux kernel: CVE-2017-9074: out-of-bounds read in ip6_fragment

The following CVE was assigned for an out-of-bounds read in IPv6 socket buffers.

The bug was found with syzkaller.

* CVE-2017-9074

The IPv6 fragmentation implementation in the Linux kernel through
4.11.1 does not consider that the nexthdr field may be associated with
an invalid option, which allows local users to cause a denial of
service (out-of-bounds read and BUG) or possibly have unspecified
other impact via crafted socket and send system calls.

CVE: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9074
Fix: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2423496af35d94a87156b063ea5cedffc10a70a1

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