#VU92932 Use of uninitialized resource in Linux kernel - CVE-2022-48747

Vulnerability identifier: #VU92932

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-2022-48747

CWE-ID: CWE-908

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 use of uninitialized resource within the bio_truncate() function in block/bio.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/6cbf4c731d7812518cd857c2cfc3da9fd120f6ae
https://git.kernel.org/stable/c/b63e120189fd92aff00096d11e2fc5253f60248b
https://git.kernel.org/stable/c/4633a79ff8bc82770486a063a08b55e5162521d8
https://git.kernel.org/stable/c/941d5180c430ce5b0f7a3622ef9b76077bfa3d82
https://git.kernel.org/stable/c/3ee859e384d453d6ac68bfd5971f630d9fa46ad3

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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.