Date: Thu, 4 Dec 2014 14:14:38 +0100 From: Petr Matousek <pmatouse@...hat.com> To: oss-security@...ts.openwall.com Subject: CVE-2014-8106 qemu: cirrus: insufficient blit region checks It was found that the Cirrus blit region checks were insufficient. Cirrus is the default graphical adapter for x86 in qemu in any released version, and it's also used for vnc (spice uses qxl). A privileged guest user could use this flaw to to write outside of vram allocated buffer boundaries in the host's qemu process with attacker provided data. Upstream patch submission: http://lists.gnu.org/archive/html/qemu-devel/2014-12/msg00508.html References: https://bugzilla.redhat.com/show_bug.cgi?id=1169454 -- Petr Matousek / Red Hat Product Security PGP: 0xC44977CA 8107 AF16 A416 F9AF 18F3 D874 3E78 6F42 C449 77CA
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