#VU102080 Out-of-bounds read in Linux kernel - CVE-2024-56627

Vulnerability identifier: #VU102080

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-2024-56627

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 smb2_read() function in fs/smb/server/smb2pdu.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/27de4295522e9a33e4a3fc72f7b8193df9eebe41
https://git.kernel.org/stable/c/81eed631935f2c52cdaf6691c6d48e0b06e8ad73
https://git.kernel.org/stable/c/de4d790dcf53be41736239d7ee63849a16ff5d10
https://git.kernel.org/stable/c/fc342cf86e2dc4d2edb0fc2ff5e28b6c7845adb9

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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.