CVE-2018-7858 describes a denial-of-service vulnerability in QEMU, specifically when built with Cirrus CLGD 54xx VGA Emulator support, affecting products like Canonical, openSUSE, and Red Hat. A local guest OS privileged user can trigger an out-of-bounds access and QEMU process crash due to incorrect region calculation during VGA display updates. Rated Medium severity (CVSS 5.5), this vulnerability has a low attack complexity and requires local access, leading to high availability impact but no confidentiality or integrity loss. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.11.2CPE matchmatch criteria | cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* | ||
42.3CPE matchmatch criteria | cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:* | ||
6.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* | ||
7.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* | ||
6.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.