#VU94214 Use-after-free in Linux kernel - CVE-2024-40913
Vulnerability identifier: #VU94214
Vulnerability risk: Low
CVSSv4.0: 5.9 [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:
CWE-ID:
CWE-416
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: 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 cachefiles_req_put(), cachefiles_ondemand_restore(), cachefiles_ondemand_get_fd() and cachefiles_ondemand_daemon_read() functions in fs/cachefiles/ondemand.c. A local user can escalate privileges on the system.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel: All versions
External links
https://git.kernel.org/stable/c/eac51d9daacd61dcc93333ff6a890cf3efc8c1c0
https://git.kernel.org/stable/c/d2d3eb377a5d081bf2bed177d354a4f59b74da88
https://git.kernel.org/stable/c/b9f58cdae6a364a3270fd6b6a46e0fd4f7f8ce32
https://git.kernel.org/stable/c/4b4391e77a6bf24cba2ef1590e113d9b73b11039
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
