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CVE-2018-7858
Quick Emulator (aka QEMU), when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a…
Medium5.5EPSS 0.61%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.61% · top 51% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
n/a
- affected n/a
References (9)
- RHSA-2018:2162 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1553402 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:1369 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-3649-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2018:1416 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 103350 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [oss-security] 20180309 CVE-2018-7858 Qemu: cirrus: OOB access when updating vga display (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [qemu-devel] 20180308 [PATCH] vga: fix region calculation (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- openSUSE-SU-2019:1074 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2018-7858)Record last updated .