Security Advisories›RHSA-2020:2070

RHSA-2020:2070 — Security Advisory

Red Hat Security Advisory: libreswan security update

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Severity

Important

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · May 12, 2020

Updated · November 22, 2025

Topic

An update for libreswan is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. 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

Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN).

Security Fix(es):

  • libreswan: DoS attack via malicious IKEv1 informational exchange message (CVE-2020-1763)

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.

Related CVEs

RHSA-2020:2070 — Red Hat Security Advisory: libreswan security update | PulseLinux