Use-after-free in Linux kernel - CVE-2024-26800
Published: May 31, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90210
CSH Severity: Low
CVSS v4.0: 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-2024-26800
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability 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 struct_group(), tls_do_decryption() and tls_decrypt_sg() functions in net/tls/tls_sw.c. A local user can escalate privileges on the system.
How to mitigate CVE-2024-26800
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/81be85353b0f5a7b660635634b655329b429eefe
- https://git.kernel.org/stable/c/1ac9fb84bc7ecd4bc6428118301d9d864d2a58d1
- https://git.kernel.org/stable/c/f2b85a4cc763841843de693bbd7308fe9a2c4c89
- https://git.kernel.org/stable/c/13114dc5543069f7b97991e3b79937b6da05f5b0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.84
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.21
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8