CVE-2017-7718 Information

Description

hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

http://git.qemu-project.org/?p=qemu.git;a=commit;h=215902d7b6fb50c6fc216fc74f770858278ed904 http://www.openwall.com/lists/oss-security/2017/04/19/4 http://www.securityfocus.com/bid/97957 https://access.redhat.com/errata/RHSA-2017:0980 https://access.redhat.com/errata/RHSA-2017:0981 https://access.redhat.com/errata/RHSA-2017:0982 https://access.redhat.com/errata/RHSA-2017:0983 https://access.redhat.com/errata/RHSA-2017:0984 https://access.redhat.com/errata/RHSA-2017:0988 https://access.redhat.com/errata/RHSA-2017:1205 https://access.redhat.com/errata/RHSA-2017:1206 https://access.redhat.com/errata/RHSA-2017:1430 https://access.redhat.com/errata/RHSA-2017:1431 https://access.redhat.com/errata/RHSA-2017:1441 https://bugzilla.redhat.com/show_bug.cgi?id=1443441 https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html https://security.gentoo.org/glsa/201706-03

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5