Date: Thu, 2 Jun 2016 10:56:53 +0530 (IST) From: P J P <ppandit@...hat.com> To: oss security list <oss-security@...ts.openwall.com> cc: Li Qiang <liqiang6-s@....cn> Subject: CVE Request Qemu: scsi: esp: OOB write when using non-DMA mode in get_cmd Hello, Quick Emulator(Qemu) built with the ESP/NCR53C9x controller emulation support is vulnerable to an OOB write access issue. The controller uses 16-byte FIFO buffer for command and information transfer. The OOB write occurs while reading from information transfer buffer via non-DMA mode in routine get_cmd(). A privileged user inside guest could use this flaw to crash the Qemu process resulting in DoS. Upstream patch: --------------- -> https://lists.gnu.org/archive/html/qemu-devel/2016-06/msg00150.html Reference: ---------- -> https://bugzilla.redhat.com/show_bug.cgi?id=1341931 This issue was discovered by Li Qiang of 360.cn Inc. Thank you. -- Prasad J Pandit / Red Hat Product Security Team 47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F
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