oss-security - CVE-2018-15746 Qemu: seccomp: blacklist is not applied to all threads

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Message-ID: <nycvar.YSQ.7.76.1808281620230.4708@xnncv>
Date: Tue, 28 Aug 2018 16:22:34 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Jann Horn <jannh@...gle.com>
Subject: CVE-2018-15746 Qemu: seccomp: blacklist is not applied to all
 threads

   Hello,

An issue was found in the way QEMU implements Seccomp sandboxing. In that, all 
QEMU threads are not bound by the sandbox. A guest user/process maybe be able 
to use this flaw to crash a guest resulting in DoS.

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2018-08/msg04892.html

Reference:
----------
   -> https://lists.gnu.org/archive/html/qemu-devel/2018-08/msg02289.html

'CVE-2018-15746' assigned via -> https://cveform.mitre.org/

Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F

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