#VU94138 Input validation error in Linux kernel - CVE-2023-52636
Published: July 11, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU94138
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-2023-52636
CWE-ID: CWE-20
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 improper input validation within the get_reply() and prep_next_sparse_read() functions in net/ceph/osd_client.c, within the decrypt_tail() and prepare_read_tail_plain() functions in net/ceph/messenger_v2.c, within the sizeof_footer(), read_partial_sparse_msg_data() and read_partial_message() functions in net/ceph/messenger_v1.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/da9c33a70f095d5d55c36d0bfeba969e31de08ae
- https://git.kernel.org/stable/c/bd9442e553ab8bf74b8be3b3c0a43bf4af4dc9b8
- https://git.kernel.org/stable/c/8e46a2d068c92a905d01cbb018b00d66991585ab
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8