Home/CVE/The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds re
CVE

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 re

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.

MEDIUM · CVSS 6 EPSS 0.00029
Schedule remediation
  • Public exploit or PoC is available
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-125Out-of-bounds Read
▤

Affected Products & Versions

9
qemu<= 2.11.1
debian linuxall versions
redhat enterprise linux desktopall versions
redhat enterprise linux serverall versions
redhat enterprise linux server ausall versions
redhat enterprise linux server eusall versions
redhat enterprise linux server tusall versions
redhat enterprise linux workstationall versions
⚠

Public Exploits & PoCs

1
poclists.gnu.org · msg02597.htmllists.gnu.org
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumPotentially Suspicious Usage Of Qemu
▣

Scoring & Timeline

6
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD23 Jan 2018 · 06:29 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
⚑

Vendor Advisories

15
rhsaRHSA-2018:2162Important
suse-csafSUSE-SU-2018:1308-1
suse-csafSUSE-SU-2018:1077-1
suse-csafSUSE-SU-2018:0831-1
suse-csafSUSE-SU-2018:0762-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2018/01/15/2Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/102518Third Party AdvisoryVDB Entry
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing ListThird Party Advisory
https://usn.ubuntu.com/3575-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4213Third Party Advisory
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