Vulnerability identifier: #VU93061

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-2023-52676

CWE-ID: CWE-190

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 integer overflow within the check_ptr_to_map_access() and check_stack_access_within_bounds() functions in kernel/bpf/verifier.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/ad140fc856f0b1d5e2215bcb6d0cc247a86805a2
http://git.kernel.org/stable/c/e5ad9ecb84405637df82732ee02ad741a5f782a6
http://git.kernel.org/stable/c/1d38a9ee81570c4bd61f557832dead4d6f816760

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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.