AZL-101739

See a problem?

Import Source

https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-101739.json

JSON Data

https://api.osv.dev/v1/vulns/AZL-101739

Upstream

CVE-2026-77159

Published

2026-09-11T11:16:54Z

Modified

2026-09-18T05:37:08Z

Summary

CVE-2026-77159 affecting package libvirt 11.9.0-1

Details

A symlink-following flaw was found in libvirt's qemuTPMEmulatorPrepareHost() function. The function uses a path-based chown() on the swtpm logfile without checking for symbolic links. A local attacker with access to the swtpm account can replace the logfile with a symlink, causing libvirtd (running as root) to transfer ownership of an arbitrary file to the swtpm user.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-77159

Affected packages

Azure Linux:3 / libvirt

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Last Affected

11.9.0-1

Database specific

source

"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-101739.json"