SB20220615143 - Anolis OS update for samba

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Race condition (CVE-ID: CVE-2021-20316)

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to a race condition. A remote user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

2) Link following (CVE-ID: CVE-2021-44141)

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to insecure link following. A remote user with ability to write files to the exported part of the file system under a share via SMB1 unix extensions or via NFS can create a symlink to determine if a file or directory exists in an area of the server file system not exported under the share definition.

Remediation

Install update from vendor's website.

References

• https://anas.openanolis.cn/errata/detail/ANSA-2022:0436