CVE-2023-0266 (GCVE-0-2023-0266)

Vulnerability from cvelistv5 – Published: 2023-01-30 13:09 – Updated: 2025-10-21 23:15
VLAI
Title
Use after free in SNDRV_CTL_IOCTL_ELEM in Linux Kernel
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
Severity
7.9 (High)
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-29 15:07 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Kernel Affected: 4.14 , < 56b88b50565cd8b946a2d00b0c83927b7ebb055e (git)
Create a notification for this product.
Date Public
2023-01-13 00:00
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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