#VU104481 Use-after-free in Linux kernel - CVE-2022-49053
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104481
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49053
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the tcmu_try_get_data_page() and tcmu_vma_fault() functions in drivers/target/target_core_user.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/a6968f7a367f128d120447360734344d5a3d5336
- https://git.kernel.org/stable/c/a9564d84ed9f6ee71017d062d0d2182154294a4b
- https://git.kernel.org/stable/c/aec36b98a1bbaa84bfd8299a306e4c12314af626
- https://git.kernel.org/stable/c/b7f3b5d70c834f49f7d87a2f2ed1c6284d9a0322
- https://git.kernel.org/stable/c/d7c5d79e50be6e06b669141e3db1f977a0dd4e8e
- https://git.kernel.org/stable/c/e3e0e067d5b34e4a68e3cc55f8eebc413f56f8ed
- https://git.kernel.org/stable/c/fb7a5115422fbd6a4d505e8844f1ef5529f10489
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.190