Vulnerability identifier: #VU90767

Vulnerability risk: Low

CVSSv3.1: 6.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-27021

CWE-ID: CWE-667

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 execute arbitrary code.

The vulnerability exists due to improper locking within the rtl_remove_one() and rtl_init_one() functions in drivers/net/ethernet/realtek/r8169_main.c, within the rtl8168_setup_ldev() function in drivers/net/ethernet/realtek/r8169_leds.c. A local user can execute arbitrary code.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel:

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External links
http://git.kernel.org/stable/c/53d986f39acd8ea11c9e460732bfa5add66360d9
http://git.kernel.org/stable/c/19fa4f2a85d777a8052e869c1b892a2f7556569d

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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.