CVE-2023-0266
CVSS v3
7
HIGH
EPSS Score
0.1 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
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
CISA Known Exploited Vulnerability
- Date Added
- 2023-03-30
- Patch Due Date
- 2023-04-20
- Ransomware Use
- Unknown
Technical details
- Published
- 2023-01-30
Frequently asked questions
What is CVE-2023-0266?
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
Is CVE-2023-0266 actively exploited?
Yes. CVE-2023-0266 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2023-04-20.
What is the CVSS score for CVE-2023-0266?
CVE-2023-0266 has a CVSS v3 base score of 7 (HIGH severity).
Is CVE-2023-0266 affecting your environment?
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