Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS / 22.04 LTS : FreeRADIUS vulnerabilities (USN-5785-1)

high Nessus Plugin ID 169516


The remote Ubuntu host is missing one or more security updates.


The remote Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5785-1 advisory.

- In FreeRADIUS 3.0.x before 3.0.20, the EAP-pwd module used a global OpenSSL BN_CTX instance to handle all handshakes. This mean multiple threads use the same BN_CTX instance concurrently, resulting in crashes when concurrent EAP-pwd handshakes are initiated. This can be abused by an adversary as a Denial-of- Service (DoS) attack. (CVE-2019-17185)

- Crash on unknown option in EAP-SIM (CVE-2022-41860)

- Crash on invalid abinary data (CVE-2022-41861)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.


Update the affected packages.

See Also


Plugin Details

Severity: High

ID: 169516

File Name: ubuntu_USN-5785-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 1/4/2023

Updated: 10/24/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2019-17185


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2022-41860

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:esm, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:freeradius, p-cpe:/a:canonical:ubuntu_linux:freeradius-common, p-cpe:/a:canonical:ubuntu_linux:freeradius-config, p-cpe:/a:canonical:ubuntu_linux:freeradius-dhcp, p-cpe:/a:canonical:ubuntu_linux:freeradius-iodbc, p-cpe:/a:canonical:ubuntu_linux:freeradius-krb5, p-cpe:/a:canonical:ubuntu_linux:freeradius-ldap, p-cpe:/a:canonical:ubuntu_linux:freeradius-memcached, p-cpe:/a:canonical:ubuntu_linux:freeradius-mysql, p-cpe:/a:canonical:ubuntu_linux:freeradius-postgresql, p-cpe:/a:canonical:ubuntu_linux:freeradius-python3, p-cpe:/a:canonical:ubuntu_linux:freeradius-redis, p-cpe:/a:canonical:ubuntu_linux:freeradius-rest, p-cpe:/a:canonical:ubuntu_linux:freeradius-utils, p-cpe:/a:canonical:ubuntu_linux:freeradius-yubikey, p-cpe:/a:canonical:ubuntu_linux:libfreeradius-dev, p-cpe:/a:canonical:ubuntu_linux:libfreeradius2, p-cpe:/a:canonical:ubuntu_linux:libfreeradius3

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 1/4/2023

Vulnerability Publication Date: 3/21/2020

Reference Information

CVE: CVE-2019-17185, CVE-2022-41860, CVE-2022-41861

USN: 5785-1