Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-31957.json
JSON Data
https://api.test.osv.dev/v1/vulns/AZL-31957
Upstream
Published
2023-11-09T20:15:08Z
Modified
2026-04-01T05:10:30.412808Z
Severity
  • 6.4 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
CVE-2023-39198 affecting package kernel for versions less than 5.15.138.1-4
Details

A race condition was found in the QXL driver in the Linux kernel. The qxlmodedumbcreate() function dereferences the qobj returned by the qxlgemobjectcreatewithhandle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation.

References

Affected packages

Azure Linux:2 / kernel

Package

Name
kernel
Purl
pkg:rpm/azure-linux/kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.15.138.1-4

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-31957.json"