#VU99226 Input validation error in Linux kernel - CVE-2024-49968

Vulnerability identifier: #VU99226

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-2024-49968

CWE-ID: CWE-20

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 improper input validation within the ext4_feature_set_ok() function in fs/ext4/super.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.11, 6.11.1, 6.11.2

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External links
https://git.kernel.org/stable/c/e1373903db6c4ac994de0d18076280ad88e12dee
https://git.kernel.org/stable/c/985b67cd86392310d9e9326de941c22fc9340eec
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.3
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12

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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.