CVE-2022-0897
Publication date 25 March 2022
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
A flaw was found in the libvirt nwfilter driver. The virNWFilterObjListNumOfNWFilters method failed to acquire the driver->nwfilters mutex before iterating over virNWFilterObj instances. There was no protection to stop another thread from concurrently modifying the driver->nwfilters object. This flaw allows a malicious, unprivileged user to exploit this issue via libvirt's API virConnectNumOfNWFilters to crash the network filter management daemon (libvirtd/virtnwfilterd).
Status
Package | Ubuntu Release | Status |
---|---|---|
libvirt | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy |
Fixed 8.0.0-1ubuntu7.5
|
|
20.04 LTS focal |
Fixed 6.0.0-0ubuntu8.16
|
|
18.04 LTS bionic |
Fixed 4.0.0-1ubuntu8.21
|
|
16.04 LTS xenial |
Needs evaluation
|
|
14.04 LTS trusty |
Needs evaluation
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 4.3 · Medium |
Attack vector | Network |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | Low |
Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
References
Related Ubuntu Security Notices (USN)
- USN-5399-1
- libvirt vulnerabilities
- 2 May 2022
- USN-6126-1
- libvirt vulnerabilities
- 31 May 2023