#VU91418 Infinite loop in Linux kernel - CVE-2022-48630

Vulnerability identifier: #VU91418

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-2022-48630

CWE-ID: CWE-835

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 infinite loop within the qcom_rng_read() function in drivers/crypto/qcom-rng.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/71a89789552b7faf3ef27969b9bc783fa0df3550
https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6ae
https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c
https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8ce
https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3
https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087d

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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.