#VU99127 Race condition in Linux kernel - CVE-2024-49864

Vulnerability identifier: #VU99127

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-2024-49864

CWE-ID: CWE-362

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 race condition within the rxrpc_open_socket() function in net/rxrpc/local_object.c, within the rxrpc_encap_rcv() and rxrpc_io_thread() functions in net/rxrpc/io_thread.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/cdf4bbbdb956d7426f687f38757ebca2a2759a0f
https://git.kernel.org/stable/c/56e415202b8a17de6496f4023e545fcb66f118ec
https://git.kernel.org/stable/c/c64f5fc95e9612fdf75587c8e21e494e614c18e2
https://git.kernel.org/stable/c/bc212465326e8587325f520a052346f0b57360e6

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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.