Date: Fri, 21 Apr 2017 14:47:36 +0530 (IST) From: P J P <ppandit@...hat.com> To: oss security list <oss-security@...ts.openwall.com> cc: Jiangxin <jiangxin1@...wei.com>, Li Qiang <liqiang6-s@....cn> Subject: CVE-2017-7980 Qemu: display: cirrus: OOB r/w access issues in bitblt routines Hello, Quick emulator(Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds r/w access issues. It could occur while copying VGA data via various bitblt functions. A privileged user inside guest could use this flaw to crash the Qemu process resulting in DoS OR potentially execute arbitrary code on a host with privileges of Qemu process on the host. Upstream patches: ----------------- -> http://git.qemu.org/?p=qemu.git;a=commitdiff;h=026aeffcb4752054830ba203020ed6eb05bcaba8 -> http://git.qemu.org/?p=qemu.git;a=commitdiff;h=ffaf857778286ca54e3804432a2369a279e73aa7 Reference: ---------- -> https://bugzilla.redhat.com/show_bug.cgi?id=1444371 This issue was independently reported by Jiangxin of PSIRT Huawei Inc. and Li Qiang of 360.cn Inc. CVE-2017-7980 assigned via -> http://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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