#VU97789 Out-of-bounds read in Linux kernel - CVE-2024-46834

Vulnerability identifier: #VU97789

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-46834

CWE-ID: CWE-125

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 perform a denial of service (DoS) attack.

The vulnerability exists due to an out-of-bounds read error within the ethtool_set_channels() function in net/ethtool/ioctl.c, within the ethtool_get_max_rxfh_channel() function in net/ethtool/common.c, within the ethnl_set_channels() function in net/ethtool/channels.c. A local user can perform a denial of service (DoS) attack.

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/101737d8b88dbd4be6010bac398fe810f1950036
https://git.kernel.org/stable/c/2899d58462ba868287d6ff3acad3675e7adf934f

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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.