CVE-2023-0266
Linux Kernel Use-After-Free Vulnerability
7.0
HIGH
CVSS 3.1
⚠ KEVEPSS 0.18%
Description
A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit 56b88b50565cd8b946a2d00b0c83927b7ebb055e
How to fix CVE-2023-0266
To remediate CVE-2023-0266, upgrade the affected package to a fixed version below.
- —upgrade to 5.10.162-1 or later
Is CVE-2023-0266 being exploited?
Yes — CVE-2023-0266 is on the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch immediately.
Affected packages (1)
- from 0, < 5.10.162-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |