SB2024062486 - Buffer overflow in Linux kernel afs
Published: June 24, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062486
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Buffer overflow (CVE-ID: CVE-2021-47366)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: 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
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the afs_fs_fetch_data(), afs_fs_store_data(), afs_fs_setattr_size() and afs_deliver_fs_get_capabilities() functions in fs/afs/fsclient.c, within the afs_fileserver_probe_result() and clear_bit() functions in fs/afs/fs_probe.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.