CVE-2023-0266
HIGH7.0⚠ KEVEPSS 0.18%Linux Kernel Use-After-Free Vulnerability
Published: 1/30/2023Modified: 4/28/2026Added to CISA KEV: 3/30/2023
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
Affected packages (1)
- Debian/linuxfrom 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 |