CVE-2018-7858

medium

Description

Quick Emulator (aka QEMU), when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a denial of service (out-of-bounds access and QEMU process crash) by leveraging incorrect region calculation when updating VGA display.

References

https://usn.ubuntu.com/3649-1/

https://lists.nongnu.org/archive/html/qemu-devel/2018-03/msg02174.html

https://bugzilla.redhat.com/show_bug.cgi?id=1553402

https://access.redhat.com/errata/RHSA-2018:2162

https://access.redhat.com/errata/RHSA-2018:1416

https://access.redhat.com/errata/RHSA-2018:1369

http://www.securityfocus.com/bid/103350

http://www.openwall.com/lists/oss-security/2018/03/09/1

http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.html

Details

Source: Mitre, NVD

Published: 2018-03-12

Updated: 2020-11-10

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium