SB20240531326 - NULL pointer dereference in Linux kernel ecryptfs
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531326
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 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2023-52779)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the vfs_getattr_nosec() and vfs_getattr() functions in fs/stat.c, within the ovl_getattr() function in fs/overlayfs/inode.c, within the ecryptfs_getattr_link() and ecryptfs_getattr() functions in fs/ecryptfs/inode.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.