#VU96105 Use-after-free in Linux kernel - CVE-2024-42271

Vulnerability identifier: #VU96105

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-2024-42271

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 iucv_sever_path() function in net/iucv/af_iucv.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/8b424c9e44111c5a76f41c6b741f8d4c4179d876
https://git.kernel.org/stable/c/01437282fd3904810603f3dc98d2cac6b8b6fc84
https://git.kernel.org/stable/c/69620522c48ce8215e5eb55ffbab8cafee8f407d
https://git.kernel.org/stable/c/f558120cd709682b739207b48cf7479fd9568431

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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.