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CVE
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CVE-2023-0266Date: (C)2023-01-31   (M)2024-05-16


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

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.8CVSS Score :
Exploit Score: 1.8Exploit Score:
Impact Score: 5.9Impact Score:
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector:
Attack Complexity: LOWAccess Complexity:
Privileges Required: LOWAuthentication:
User Interaction: NONEConfidentiality:
Scope: UNCHANGEDIntegrity:
Confidentiality: HIGHAvailability:
Integrity: HIGH 
Availability: HIGH 
  
Reference:
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://github.com/torvalds/linux/commit/56b88b50565cd8b946a2d00b0c83927b7ebb055e
https://github.com/torvalds/linux/commit/becf9e5d553c2389d857a3c178ce80fdb34a02e1
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html

CWE    1
CWE-416
OVAL    59
oval:org.secpod.oval:def:708046
oval:org.secpod.oval:def:4501401
oval:org.secpod.oval:def:3300334
oval:org.secpod.oval:def:1506503
...

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