CVE-2018-5683
The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation.
Does this matter?
Lower severity and a low EPSS score (0.68%). Track it; it rarely justifies an emergency change on its own.
Description
The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation.
- CVSS 3.1
- 6.0 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
- EPSS
- 0.68% probability · 52th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- qemu/qemu · debian/debian linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation · canonical/ubuntu linux
- Source
- cve@mitre.org
EPSS 0.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2018/01/15/2Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/102518Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:0816Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1104Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2162Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing List, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2018-01/msg02597.htmlExploit, Mailing List, Third Party Advisory
- https://usn.ubuntu.com/3575-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4213Third Party Advisory
- http://www.openwall.com/lists/oss-security/2018/01/15/2Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/102518Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:0816Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1104Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2162Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing List, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2018-01/msg02597.htmlExploit, Mailing List, Third Party Advisory
- https://usn.ubuntu.com/3575-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4213Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.