#VU102058 Use-after-free in Linux kernel - CVE-2024-53173

Vulnerability identifier: #VU102058

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-2024-53173

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 nfs4_open_release() function in fs/nfs/nfs4proc.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/1cfae9575296f5040cdc84b0730e79078c081d2d
https://git.kernel.org/stable/c/229a30ed42bb87bcb044c5523fabd9e4f0e75648
https://git.kernel.org/stable/c/2ab9639f16b05d948066a6c4cf19a0fdc61046ff
https://git.kernel.org/stable/c/2fdb05dc0931250574f0cb0ebeb5ed8e20f4a889
https://git.kernel.org/stable/c/5237a297ffd374a1c4157a53543b7a69d7bbbc03
https://git.kernel.org/stable/c/7bf6bf130af8ee7d93a99c28a7512df3017ec759
https://git.kernel.org/stable/c/b56ae8e715557b4fc227c9381d2e681ffafe7b15
https://git.kernel.org/stable/c/ba6e6c04f60fe52d91520ac4d749d372d4c74521
https://git.kernel.org/stable/c/e2277a1d9d5cd0d625a4fd7c04fce2b53e66df77

---

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.