#VU94947 Use-after-free in Linux kernel - CVE-2024-41049

Vulnerability identifier: #VU94947

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: CVE-2024-41049

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 posix_lock_inode() function in fs/locks.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/1cbbb3d9475c403ebedc327490c7c2b991398197
https://git.kernel.org/stable/c/7d4c14f4b511fd4c0dc788084ae59b4656ace58b
https://git.kernel.org/stable/c/02a8964260756c70b20393ad4006948510ac9967
https://git.kernel.org/stable/c/5cb36e35bc10ea334810937990c2b9023dacb1b0
https://git.kernel.org/stable/c/432b06b69d1d354a171f7499141116536579eb6a
https://git.kernel.org/stable/c/116599f6a26906cf33f67975c59f0692ecf7e9b2
https://git.kernel.org/stable/c/1b3ec4f7c03d4b07bad70697d7e2f4088d2cfe92

---

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.