CVE-2022-1263
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
A NULL pointer dereference issue was found in KVM when releasing a vCPU with dirty ring support enabled. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2022-1263
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2022-1263.html
Vendor advisory: redhat — https://access.redhat.com/errata/RHSA-2022:8267
Vendor advisory: redhat — https://access.redhat.com/errata/RHSA-2022:7933
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| rhel | 9 | fixed | |
| sles | affected | | |
| debian | bookworm | fixed | 5.17.3-1 |
| debian | bullseye | fixed | 0 |
| debian | forky | fixed | 5.17.3-1 |
| debian | sid | fixed | 5.17.3-1 |
| debian | trixie | fixed | 5.17.3-1 |
References
Verify integrity in audit chain (admin only). AS-IS.