USN-8957-1: authd vulnerability
USN-8957-1
Summary
It was discovered that SPICE vdagent had an integer overflow in the buffer size calculation used when writing to the daemon socket. A malicious or compromised SPICE host could possibly use this issue to cause SPICE vdagent to crash, resulting in a denial of service. (CVE-2026-57965)
It was discovered that SPICE vdagent did not properly sanitize filenames provided by the SPICE host during file transfers. A malicious or compromised SPICE host could possibly use this issue to write arbitrary files to any location on the guest operating system with the privileges of the spice-vdagent process. (CVE-2026-57966)
Products covered
A separate affected-products list was not included in the collected bulletin.
Remediation
Separate remediation guidance was not included in the collected bulletin.
CVEs in this advisory 2
Updates
- Published by Ubuntu
The publication date reported by the vendor.
- Added to SecurityAlert
We collected the advisory from the official source.
- Confirmed at the source
Our collector saw this advisory during a later source check.