SB2022121324 - Ubuntu update for containerd
Published: December 13, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Resource exhaustion (CVE-ID: CVE-2022-23471)
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to an error in containerd CRI stream server when handling terminal resize events. A remote user can request a TTY and force it to fail by sending a faulty command and exhaust memory on the host.
2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2022-24769)
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to containers are incorrectly started with non-empty inheritable Linux process capabilities, which leads to security restrictions bypass and privilege escalation.
3) Incorrect authorization (CVE-ID: CVE-2022-24778)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists in imgcrypt library when checking the keys of an authorized user to access an encrypted image on systems where layers are not available and cannot run on the host architecture. A remote attacker can run an image without providing the previously decrypted keys and gain access to sensitive information.
4) Resource exhaustion (CVE-ID: CVE-2022-31030)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources within the ExecSync API. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.