Date: Wed, 30 Aug 2017 15:34:51 +0530 (IST) From: P J P <ppandit@...hat.com> To: oss security list <oss-security@...ts.openwall.com> cc: David Buchanan <d@...buchanan.co.uk> Subject: CVE-2017-13673 Qemu: vga: reachable assert failure during during display update Hello, Quick emulator(Qemu) built with the VGA display emulator support is vulnerable to an assert failure issue. It could occur while updating graphics display, due to miscalculating region for dirty bitmap snapshot in split screen mode. A privileged user/process inside guest could use this flaw to crash the Qemu process on the host resulting in DoS. Upstream patch: --------------- -> https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg04685.html Reference: ---------- -> https://bugzilla.redhat.com/show_bug.cgi?id=1486588 This issue was reported by David Buchanan. Thank you. -- Prasad J Pandit / Red Hat Product Security Team 47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F
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