SB2022122734 - SUSE update for freeradius-server

Description

This security bulletin contains information about 3 vulnerabilities.

1) Information disclosure (CVE-ID: CVE-2022-41859)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the compute_password_element() function leaks information about the password. A remote attacker can substantially reduce the size of an offline dictionary attack and brute-force passwords.

2) NULL pointer dereference (CVE-ID: CVE-2022-41860)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the EAP-SIM module when parsing an unknown SIM option. A remote attacker can send specially crafted data to the application and perform a denial of service (DoS) attack.

3) Input validation error (CVE-ID: CVE-2022-41861)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A malicious RADIUS client or home server can send a malformed abinary attribute, which can cause the server to crash.

Remediation

Install update from vendor's website.

References

• https://www.suse.com/support/update/announcement/2022/suse-su-20224626-1/