Use-after-free in Linux kernel sunrpc

1) Use-after-free

EUVDB-ID: #VU102061

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-2024-53168

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

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 xs_create_sock() function in net/sunrpc/xprtsock.c, within the svc_create_socket() function in net/sunrpc/svcsock.c. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/0ca87e5063757132a044d35baba40a7d4bb25394
https://git.kernel.org/stable/c/3f23f96528e8fcf8619895c4c916c52653892ec1
https://git.kernel.org/stable/c/61c0a5eac96836de5e3a5897eccdc63162a94936
https://git.kernel.org/stable/c/694ccb05b79ee5f5a9f14c2f80d2635d3bb8bdc3

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.