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Red Hat: CVE-2019-17185: CVE-2019-17185 freeradius: eap-pwd: DoS issues due to multithreaded BN_CTX access (Multiple Advisories)

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Red Hat: CVE-2019-17185: CVE-2019-17185 freeradius: eap-pwd: DoS issues due to multithreaded BN_CTX access (Multiple Advisories)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
03/21/2020
Created
10/01/2020
Added
10/01/2020
Modified
12/15/2023

Description

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.

Solution(s)

  • redhat-upgrade-freeradius
  • redhat-upgrade-freeradius-debuginfo
  • redhat-upgrade-freeradius-debugsource
  • redhat-upgrade-freeradius-devel
  • redhat-upgrade-freeradius-doc
  • redhat-upgrade-freeradius-krb5
  • redhat-upgrade-freeradius-krb5-debuginfo
  • redhat-upgrade-freeradius-ldap
  • redhat-upgrade-freeradius-ldap-debuginfo
  • redhat-upgrade-freeradius-mysql
  • redhat-upgrade-freeradius-mysql-debuginfo
  • redhat-upgrade-freeradius-perl
  • redhat-upgrade-freeradius-perl-debuginfo
  • redhat-upgrade-freeradius-postgresql
  • redhat-upgrade-freeradius-postgresql-debuginfo
  • redhat-upgrade-freeradius-python
  • redhat-upgrade-freeradius-rest
  • redhat-upgrade-freeradius-rest-debuginfo
  • redhat-upgrade-freeradius-sqlite
  • redhat-upgrade-freeradius-sqlite-debuginfo
  • redhat-upgrade-freeradius-unixodbc
  • redhat-upgrade-freeradius-unixodbc-debuginfo
  • redhat-upgrade-freeradius-utils
  • redhat-upgrade-freeradius-utils-debuginfo
  • redhat-upgrade-python3-freeradius
  • redhat-upgrade-python3-freeradius-debuginfo

References

  • CVE-2019-17185
  • RHSA-2020:3984
  • RHSA-2020:4799

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