Improper Synchronization Affecting freeradius-server-ldap package, versions <3.0.16-3.6.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.2% (58th percentile)

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  • Snyk IDSNYK-SLES150-FREERADIUSSERVERLDAP-2712691
  • published14 Apr 2022
  • disclosed17 Apr 2020

Introduced: 17 Apr 2020

CVE-2019-17185  (opens in a new tab)
CWE-662  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 freeradius-server-ldap to version 3.0.16-3.6.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream freeradius-server-ldap package and not the freeradius-server-ldap package as distributed by SLES. See How to fix? for SLES:15.0 relevant fixed versions and status.

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.

CVSS Scores

version 3.1