Updated: 2023-03-10 12:28:07.061403
Description:
A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. 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.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0 | |
| CVSS Version 3.x | MEDIUM | 5.5 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated |
|---|---|---|---|---|---|---|---|
| CentOS 6 ELS | kernel | 2.6.32 | 5.5 | MEDIUM | Ignored | 2022-09-07 08:02:12 | |
| CentOS 8.4 ELS | kernel | 4.18.0-305.25.1 | 5.5 | MEDIUM | Needs Triage | 2023-02-22 02:18:38 | |
| CentOS 8.5 ELS | kernel | 4.18.0-348.7.1 | 5.5 | MEDIUM | Needs Triage | 2023-02-22 02:18:39 | |
| CloudLinux 6 ELS | kernel | 2.6.32 | 5.5 | MEDIUM | Ignored | 2022-09-07 08:02:12 | |
| Oracle Linux 6 ELS | kernel | 2.6.32 | 5.5 | MEDIUM | Ignored | 2022-09-07 08:02:12 | |
| Ubuntu 16.04 ELS | linux | 4.4.0 | 5.5 | MEDIUM | Ignored | 2023-02-01 04:05:43 | |
| Ubuntu 16.04 ELS | linux-hwe | 4.15.0 | 5.5 | MEDIUM | Released | 2023-02-03 07:40:39 | |
| Ubuntu 18.04 ELS | linux | 4.15.0 | 5.5 | MEDIUM | Ignored | 2023-03-02 04:03:58 |