#VU90162 Use-after-free in Linux kernel - CVE-2024-35854

Vulnerability identifier: #VU90162

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-2024-35854

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 mlxsw_sp_acl_tcam_vregion_rehash() function in drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.4 - 5.4.274, 5.10 - 5.10.215, 5.15 - 5.15.157, 6.1 - 6.1.89, 6.6 - 6.6.29

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External links
https://git.kernel.org/stable/c/e118e7ea24d1392878ef85926627c6bc640c4388
https://git.kernel.org/stable/c/a429a912d6c779807f4d72a6cc0a1efaaa3613e1
https://git.kernel.org/stable/c/4c89642ca47fb620914780c7c51d8d1248201121
https://git.kernel.org/stable/c/813e2ab753a8f8c243a39ede20c2e0adc15f3887
https://git.kernel.org/stable/c/311eeaa7b9e26aba5b3d57b09859f07d8e9fc049
https://git.kernel.org/stable/c/a02687044e124f8ccb427cd3632124a4e1a7d7c1
https://git.kernel.org/stable/c/54225988889931467a9b55fdbef534079b665519
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.216
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.158
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.275
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.90
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.30

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?