Vulnerability identifier: #VU90188

Vulnerability risk: Low

CVSSv3.1: 7.7 [AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-26983

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 xbc_alloc_mem(), xbc_parse_tree() and xbc_init() functions in lib/bootconfig.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel:

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External links
http://git.kernel.org/stable/c/1e7feb31a18c197d63a5e606025ed63c762f8918
http://git.kernel.org/stable/c/e46d3be714ad9652480c6db129ab8125e2d20ab7
http://git.kernel.org/stable/c/5a7dfb8fcd3f29fc93161100179b27f24f3d5f35
http://git.kernel.org/stable/c/89f9a1e876b5a7ad884918c03a46831af202c8a0

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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.