#VU104733 Double free in Linux kernel - CVE-2022-49384

Vulnerability identifier: #VU104733

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-2022-49384

CWE-ID: CWE-415

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 a double free error within the md_free() and md_stop() functions in drivers/md/md.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/36a2fc44c574a59ee3b5e2cb327182f227b2b07e
https://git.kernel.org/stable/c/42b805af102471f53e3c7867b8c2b502ea4eef7e
https://git.kernel.org/stable/c/ea7d7bd90079d96f9c86bdaf0b106e0cd2a70661
https://git.kernel.org/stable/c/f99d5b5dc8a42c807b5f1176b925aa45d61962ab

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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.