CVE-2023-0266 (GCVE-0-2023-0266)
Vulnerability from cvelistv5
Published
2023-01-30 13:09
Modified
2025-10-21 23:15
Severity ?
7.9 (High) - CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:H
CWE
Summary
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
References
Impacted products
Vendor Product Version
Linux Linux Kernel Version: 4.14
 Create a notification for this product.
CISA Known Exploited Vulnerability
Data from the CISA Known Exploited Vulnerabilities Catalog

Date added: 2023-03-30

Due date: 2023-04-20

Required action: Apply updates per vendor instructions.

Used in ransomware: Unknown

Notes: https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-5.10/alsa-pcm-move-rwsem-lock-inside-snd_ctl_elem_read-to-prevent-uaf.patch?id=72783cf35e6c55bca84c4bb7b776c58152856fd4; https://nvd.nist.gov/vuln/detail/CVE-2023-0266

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