#VU92927 Off-by-one in Linux kernel - CVE-2022-48732

Cybersecurity Help s.r.o.

Published: 2024-06-20 | Updated: 2025-05-13

Vulnerability identifier: #VU92927

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-2022-48732

CWE-ID: CWE-193

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 an off-by-one error within the nvbios_addr() function in drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 4.9, 4.9.0, 4.9.1, 4.9.2, 4.9.3, 4.9.4, 4.9.5, 4.9.6, 4.9.7, 4.9.8, 4.9.9, 4.9.10, 4.9.11, 4.9.12, 4.9.13, 4.9.14, 4.9.15, 4.9.16, 4.9.17, 4.9.18, 4.9.19, 4.9.20, 4.9.21, 4.9.22, 4.9.23, 4.9.24, 4.9.25, 4.9.26, 4.9.27, 4.9.28, 4.9.29, 4.9.30, 4.9.31, 4.9.32, 4.9.33, 4.9.34, 4.9.35, 4.9.36, 4.9.37, 4.9.38, 4.9.39, 4.9.40, 4.9.41, 4.9.42, 4.9.43, 4.9.44, 4.9.45, 4.9.46, 4.9.47, 4.9.48, 4.9.49, 4.9.50, 4.9.51, 4.9.52, 4.9.53, 4.9.54, 4.9.55, 4.9.56, 4.9.57, 4.9.58, 4.9.59, 4.9.60, 4.9.61, 4.9.62, 4.9.63, 4.9.64, 4.9.65, 4.9.66, 4.9.67, 4.9.68, 4.9.69, 4.9.70, 4.9.71, 4.9.72, 4.9.73, 4.9.74, 4.9.75, 4.9.76, 4.9.77, 4.9.78, 4.9.79, 4.9.80, 4.9.81, 4.9.82, 4.9.83, 4.9.84, 4.9.85, 4.9.86, 4.9.87, 4.9.88, 4.9.89, 4.9.90, 4.9.91, 4.9.92, 4.9.93, 4.9.94, 4.9.95, 4.9.96, 4.9.97, 4.9.98, 4.9.99, 4.9.100, 4.9.101, 4.9.102, 4.9.103, 4.9.104, 4.9.105, 4.9.106, 4.9.107, 4.9.108, 4.9.109, 4.9.110, 4.9.111, 4.9.112, 4.9.113, 4.9.114, 4.9.115, 4.9.116, 4.9.117, 4.9.118, 4.9.119, 4.9.120, 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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.

Latest bulletins with this vulnerability

Multiple vulnerabilities in Dell Storage Resource Manager (SRM) and Dell Storage Monitoring and Reporting (SMR)

SUSE update for the Linux Kernel

openEuler 20.03 LTS SP4 update for kernel

SUSE update for the Linux Kernel