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CVE-2022-41860

Published: 14 December 2022

In freeradius, when an EAP-SIM supplicant sends an unknown SIM option, the server will try to look that option up in the internal dictionaries. This lookup will fail, but the SIM code will not check for that failure. Instead, it will dereference a NULL pointer, and cause the server to crash.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
freeradius
Launchpad, Ubuntu, Debian
bionic
Released (3.0.16+dfsg-1ubuntu3.2)
focal
Released (3.0.20+dfsg-3ubuntu0.2)
jammy Not vulnerable
(3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3)
kinetic Not vulnerable
(3.2.0+dfsg-1)
trusty Ignored
(end of standard support)
upstream Needs triage

xenial
Released (2.2.8+dfsg-0.1ubuntu0.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
Patches:
upstream: https://github.com/FreeRADIUS/freeradius-server/commit/f1cdbb33ec61c4a64a

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H