SB2025032778 - Memory leak in Linux kernel cifs
Published: March 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025032778
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) Memory leak (CVE-ID: CVE-2023-53008)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the SMB2_auth_kerberos() function in fs/cifs/smb2pdu.c, within the decode_ntlmssp_challenge() and sess_auth_kerberos() functions in fs/cifs/sess.c, within the build_avpair_blob() function in fs/cifs/cifsencrypt.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.