#VU98871 Use-after-free in Linux kernel - CVE-2024-49925

Vulnerability identifier: #VU98871

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-2024-49925

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 efifb_probe(), pm_runtime_put() and efifb_remove() functions in drivers/video/fbdev/efifb.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/36bfefb6baaa8e46de44f4fd919ce4347337620f
https://git.kernel.org/stable/c/872cd2d029d2c970a8a1eea88b48dab2b3f2e93a
https://git.kernel.org/stable/c/4684d69b9670a83992189f6271dc0fcdec4ed0d7
https://git.kernel.org/stable/c/95cdd538e0e5677efbdf8aade04ec098ab98f457

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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.