#VU104345 Memory leak in Linux kernel - CVE-2022-49705

Vulnerability identifier: #VU104345

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-2022-49705

CWE-ID: CWE-401

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 memory leak within the v9fs_vfs_atomic_open_dotl() function in fs/9p/vfs_inode_dotl.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/22832ac3eb5be3f7168816a76b64c1284e12eb3c
https://git.kernel.org/stable/c/8bc5412ba1a45edfd1e451874c483c26a097af2b
https://git.kernel.org/stable/c/beca774fc51a9ba8abbc869cf0c3d965ff17cd24

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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.