Date: Tue, 5 Dec 2017 12:54:12 +0530 (IST) From: P J P <ppandit@...hat.com> To: oss security list <oss-security@...ts.openwall.com> cc: zhangboxian <zhangboxian@...wei.com> Subject: CVE-2017-17381 Qemu: virtio: divide by zero exception while updating rings Hello, Virtio Vring implementation in Quick Emulator(QEMU) is vulnerable to an arithmetic exception issue. It could occur if a guest was to unset vring alignment while updating Virtio rings. A guest user/process could use this flaw to crash Qemu process resulting in DoS. Upstream patch: --------------- -> https://lists.gnu.org/archive/html/qemu-devel/2017-12/msg00166.html This issue was reported by Huawei Alpha Labs. 'CVE-2017-17381' 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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