#VU89245 NULL pointer dereference in Linux kernel - CVE-2023-52443
Published: May 8, 2024
Vulnerability identifier: #VU89245
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-52443
CWE-ID: CWE-476
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 perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error within the unpack_profile() function in security/apparmor/policy_unpack.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.
External links
- https://git.kernel.org/stable/c/9286ee97aa4803d99185768735011d0d65827c9e
- https://git.kernel.org/stable/c/1d8e62b5569cc1466ceb8a7e4872cf10160a9dcf
- https://git.kernel.org/stable/c/5ff00408e5029d3550ee77f62dc15f1e15c47f87
- https://git.kernel.org/stable/c/0a12db736edbb4933e4274932aeea594b5876fa4
- https://git.kernel.org/stable/c/9d4fa5fe2b1d56662afd14915a73b4d0783ffa45
- https://git.kernel.org/stable/c/5c0392fdafb0a2321311900be83ffa572bef8203
- https://git.kernel.org/stable/c/77ab09b92f16c8439a948d1af489196953dc4a0e
- https://git.kernel.org/stable/c/55a8210c9e7d21ff2644809699765796d4bfb200