#VU104800 Buffer overflow in Linux kernel - CVE-2022-49581

Vulnerability identifier: #VU104800

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-2022-49581

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 be_get_module_info() and be_get_module_eeprom() functions in drivers/net/ethernet/emulex/benet/be_ethtool.c, within the be_cmd_read_port_transceiver_data(), be_cmd_query_cable_type() and be_cmd_query_sfp_info() functions in drivers/net/ethernet/emulex/benet/be_cmds.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/18043da94c023f3ef09c15017bdb04e8f695ef10
https://git.kernel.org/stable/c/665cbe91de2f7c97c51ca8fce39aae26477c1948
https://git.kernel.org/stable/c/8ff4f9df73e5c551a72ee6034886c17e8de6596d
https://git.kernel.org/stable/c/a5a8fc0679a8fd58d47aa2ebcfc5742631f753f9
https://git.kernel.org/stable/c/a8569f76df7ec5b4b51155c57523a0b356db5741
https://git.kernel.org/stable/c/aba8ff847f4f927ad7a1a1ee4a9f29989a1a728f
https://git.kernel.org/stable/c/d7241f679a59cfe27f92cb5c6272cb429fb1f7ec
https://git.kernel.org/stable/c/fe4473fc7940f14c4a12db873b9729134c212654

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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.