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====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: libssh2 security update
Advisory ID:       RHSA-2020:3915-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:3915
Issue date:        2020-09-29
CVE Names:         CVE-2019-17498 
====================================================================
1. Summary:

An update for libssh2 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch, x86_64

3. Description:

The libssh2 packages provide a library that implements the SSH2 protocol.

Security Fix(es):

* libssh2: integer overflow in SSH_MSG_DISCONNECT logic in packet.c
(CVE-2019-17498)

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.

4. 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
libssh2 must be restarted for this update to take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

1766898 - CVE-2019-17498 libssh2: integer overflow in SSH_MSG_DISCONNECT logic in packet.c

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
libssh2-1.8.0-4.el7.src.rpm

x86_64:
libssh2-1.8.0-4.el7.i686.rpm
libssh2-1.8.0-4.el7.x86_64.rpm
libssh2-debuginfo-1.8.0-4.el7.i686.rpm
libssh2-debuginfo-1.8.0-4.el7.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

noarch:
libssh2-docs-1.8.0-4.el7.noarch.rpm

x86_64:
libssh2-debuginfo-1.8.0-4.el7.i686.rpm
libssh2-debuginfo-1.8.0-4.el7.x86_64.rpm
libssh2-devel-1.8.0-4.el7.i686.rpm
libssh2-devel-1.8.0-4.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
libssh2-1.8.0-4.el7.src.rpm

x86_64:
libssh2-1.8.0-4.el7.i686.rpm
libssh2-1.8.0-4.el7.x86_64.rpm
libssh2-debuginfo-1.8.0-4.el7.i686.rpm
libssh2-debuginfo-1.8.0-4.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

noarch:
libssh2-docs-1.8.0-4.el7.noarch.rpm

x86_64:
libssh2-debuginfo-1.8.0-4.el7.i686.rpm
libssh2-debuginfo-1.8.0-4.el7.x86_64.rpm
libssh2-devel-1.8.0-4.el7.i686.rpm
libssh2-devel-1.8.0-4.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
libssh2-1.8.0-4.el7.src.rpm

ppc64:
libssh2-1.8.0-4.el7.ppc.rpm
libssh2-1.8.0-4.el7.ppc64.rpm
libssh2-debuginfo-1.8.0-4.el7.ppc.rpm
libssh2-debuginfo-1.8.0-4.el7.ppc64.rpm

ppc64le:
libssh2-1.8.0-4.el7.ppc64le.rpm
libssh2-debuginfo-1.8.0-4.el7.ppc64le.rpm

s390x:
libssh2-1.8.0-4.el7.s390.rpm
libssh2-1.8.0-4.el7.s390x.rpm
libssh2-debuginfo-1.8.0-4.el7.s390.rpm
libssh2-debuginfo-1.8.0-4.el7.s390x.rpm

x86_64:
libssh2-1.8.0-4.el7.i686.rpm
libssh2-1.8.0-4.el7.x86_64.rpm
libssh2-debuginfo-1.8.0-4.el7.i686.rpm
libssh2-debuginfo-1.8.0-4.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

noarch:
libssh2-docs-1.8.0-4.el7.noarch.rpm

ppc64:
libssh2-debuginfo-1.8.0-4.el7.ppc.rpm
libssh2-debuginfo-1.8.0-4.el7.ppc64.rpm
libssh2-devel-1.8.0-4.el7.ppc.rpm
libssh2-devel-1.8.0-4.el7.ppc64.rpm

ppc64le:
libssh2-debuginfo-1.8.0-4.el7.ppc64le.rpm
libssh2-devel-1.8.0-4.el7.ppc64le.rpm

s390x:
libssh2-debuginfo-1.8.0-4.el7.s390.rpm
libssh2-debuginfo-1.8.0-4.el7.s390x.rpm
libssh2-devel-1.8.0-4.el7.s390.rpm
libssh2-devel-1.8.0-4.el7.s390x.rpm

x86_64:
libssh2-debuginfo-1.8.0-4.el7.i686.rpm
libssh2-debuginfo-1.8.0-4.el7.x86_64.rpm
libssh2-devel-1.8.0-4.el7.i686.rpm
libssh2-devel-1.8.0-4.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
libssh2-1.8.0-4.el7.src.rpm

x86_64:
libssh2-1.8.0-4.el7.i686.rpm
libssh2-1.8.0-4.el7.x86_64.rpm
libssh2-debuginfo-1.8.0-4.el7.i686.rpm
libssh2-debuginfo-1.8.0-4.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

noarch:
libssh2-docs-1.8.0-4.el7.noarch.rpm

x86_64:
libssh2-debuginfo-1.8.0-4.el7.i686.rpm
libssh2-debuginfo-1.8.0-4.el7.x86_64.rpm
libssh2-devel-1.8.0-4.el7.i686.rpm
libssh2-devel-1.8.0-4.el7.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2019-17498
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

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2020 Red Hat, Inc.
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