SB2022050442 - SUSE update for libvirt
Published: May 4, 2022
Security Bulletin ID
SB2022050442
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2022-0897)
The vulnerability allows a local user to perform a denial of service attack (DoS).
The vulnerability exists due to double-locking error within the nwfilterConnectNumOfNWFilters() function in nwfilter/nwfilter_driver.c in libvirt. An local user can abuse the libvirt API virConnectNumOfNWFilters to crash the network filter management daemon (libvirtd/virtnwfilterd).
Remediation
Install update from vendor's website.