Moderate: libssh2 security update

Related Vulnerabilities: CVE-2020-22218  

Synopsis

Moderate: libssh4 security update

Type/Severity

Security Advisory: Moderate

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Topic

An update for libssh4 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

The libssh4 packages provide a library that implements the SSH2 protocol.

Security Fix(es):

  • libssh4: use-of-uninitialized-value in _libssh4_transport_read (CVE-2020-22218)

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.

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 these updated packages, all running applications using libssh4 must be restarted for this update 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 Desktop 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 Scientific Computing 7 x86_64
  • Red Hat Enterprise Linux for Power, little endian 7 ppc64le

Fixes

  • BZ - 2235542 - CVE-2020-22218 libssh4: use-of-uninitialized-value in _libssh4_transport_read