SB2024031552 - Privilege escalation in Linux kernel uio driver
Published: March 15, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024031552
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2023-52439)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the uio_open() function in drivers/uio/uio.c. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3174e0f7de1ba392dc191625da83df02d695b60c
- https://git.kernel.org/stable/c/e93da893d52d82d57fc0db2ca566024e0f26ff50
- https://git.kernel.org/stable/c/5e0be1229ae199ebb90b33102f74a0f22d152570
- https://git.kernel.org/stable/c/5cf604ee538ed0c467abe3b4cda5308a6398f0f7
- https://git.kernel.org/stable/c/17a8519cb359c3b483fb5c7367efa9a8a508bdea
- https://git.kernel.org/stable/c/35f102607054faafe78d2a6994b18d5d9d6e92ad
- https://git.kernel.org/stable/c/913205930da6213305616ac539447702eaa85e41
- https://git.kernel.org/stable/c/0c9ae0b8605078eafc3bea053cc78791e97ba2e2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.306
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.209
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.148
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.268
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.74
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8