Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-31814.json
JSON Data
https://api.test.osv.dev/v1/vulns/AZL-31814
Upstream
Published
2023-10-25T18:17:43Z
Modified
2026-04-01T05:10:26.211033Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
CVE-2023-5717 affecting package hyperv-daemons for versions less than 5.15.137.1-1
Details

A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation.

If perfreadgroup() is called while an event's siblinglist is smaller than its child's siblinglist, it can increment or write to memory locations outside of the allocated buffer.

We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06.

References

Affected packages

Azure Linux:2 / hyperv-daemons

Package

Name
hyperv-daemons
Purl
pkg:rpm/azure-linux/hyperv-daemons

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.15.137.1-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-31814.json"