Moderate: freeradius security and bug fix update

Synopsis

Moderate: freeradius security and bug fix update

Type/Severity

Security Advisory: Moderate

Topic

An update for freeradius is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

FreeRADIUS is a high-performance and highly configurable free Remote Authentication Dial In User Service (RADIUS) server, designed to allow centralized authentication and authorization for a network.

Security Fix(es):

• freeradius: privilege escalation due to insecure logrotate configuration (CVE-2019-10143)
  
• freeradius: eap-pwd: Information leak due to aborting when needing more than 10 iterations (CVE-2019-13456)
  
• freeradius: eap-pwd: DoS issues due to multithreaded BN_CTX access (CVE-2019-17185)
  

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.9 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing the update, radiusd must be restarted for the changes to take effect.

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le

Fixes

• BZ - 1592741 - Freeradius paircompare with attribute references and expansions
• BZ - 1630684 - correct receiving of multiple RADIUS packets through RadSec by freeradius
• BZ - 1677435 - freeradius logs cleartext PAP passwords on failure
• BZ - 1705340 - CVE-2019-10143 freeradius: privilege escalation due to insecure logrotate configuration
• BZ - 1737663 - CVE-2019-13456 freeradius: eap-pwd: Information leak due to aborting when needing more than 10 iterations
• BZ - 1816680 - CVE-2019-17185 freeradius: eap-pwd: DoS issues due to multithreaded BN_CTX access

CVEs

• CVE-2019-10143
• CVE-2019-13456
• CVE-2019-17185

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.9_release_notes/index