CVE-2023-0266

high · 7.9Actively exploited

On the CISA Known Exploited Vulnerabilities catalog

Apply updates per vendor instructions.

Added 2023-03-30Remediation due 2023-04-20

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

7.9

CVSS

3.7%

EPSS (exploit prob.)

89th

EPSS percentile

2023-01-30

Published

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:H

Weaknesses

CWE-416

Affected products

Vendor	Product	Affected versions
debian	debian_linux	10.0
linux	linux_kernel	>= 4.14, < 4.14.303
linux	linux_kernel	>= 4.15, < 4.19.270
linux	linux_kernel	>= 4.20, < 5.4.229
linux	linux_kernel	>= 5.5, < 5.10.163
linux	linux_kernel	>= 5.11, < 5.15.88
linux	linux_kernel	>= 5.16, < 6.1.6

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2023-0266