oss-sec mailing list archives

CVE request Qemu: display: virtio-gpu-3d: OOB access while reading virgl capabilities

From: P J P <ppandit () redhat com>
Date: Tue, 20 Dec 2016 18:18:03 +0530 (IST)

  Hello,

Quick Emulator(Qemu) built with the Virtio GPU Device emulator support isvulnerable to an out of bounds memory access issue. It could occur whileprocessing 'VIRTIO_GPU_CMD_GET_CAPSET' command.

A guest user/process could use this flaw to crash the Qemu process instance ona host, resulting in DoS.


Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2016-12/msg01903.html

This issue was reported by Zhenhao Hong, Marvel Team of 360.cn Inc.

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

Current thread:

CVE request Qemu: display: virtio-gpu-3d: OOB access while reading virgl capabilities P J P (Dec 20)
- Re: CVE request Qemu: display: virtio-gpu-3d: OOB access while reading virgl capabilities cve-assign (Dec 22)