#VU94479 Buffer overflow in Linux kernel - CVE-2022-48827
Published: July 17, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU94479
Vulnerability risk: Low
CVSSv4.0: 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-2022-48827
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the nfsd4_encode_read() and nfsd4_encode_read_plus() functions in fs/nfsd/nfs4xdr.c, within the nfsd4_read() function in fs/nfsd/nfs4proc.c, within the nfsd3_proc_read() function in fs/nfsd/nfs3proc.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/1726a39b0879acfb490b22dca643f26f4f907da9
- https://git.kernel.org/stable/c/c6eff5c4277146a78b4fb8c9b668dd64542c41b0
- https://git.kernel.org/stable/c/44502aca8e02ab32d6b0eb52e006a5ec9402719b
- https://git.kernel.org/stable/c/0cb4d23ae08c48f6bf3c29a8e5c4a74b8388b960
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.220
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.24
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17