#VU99097 Buffer overflow in Linux kernel - CVE-2022-48985

Vulnerability identifier: #VU99097

Vulnerability risk: Low

CVSSv4.0: [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-2022-48985

CWE-ID: CWE-119

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 memory corruption within the mana_poll_rx_cq() and mana_cq_handler() functions in drivers/net/ethernet/microsoft/mana/mana_en.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
http://git.kernel.org/stable/c/fe50a9bbeb1f042e756c5cfa7708112c944368de
http://git.kernel.org/stable/c/6740d8572ccd1bca50d8a1ca2bedc333f50ed5f3
http://git.kernel.org/stable/c/18010ff776fa42340efc428b3ea6d19b3e7c7b21

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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.