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

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

Synopsis:          Moderate: libssh2 security update
Advisory ID:       RHSA-2019:1884-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:1884
Issue date:        2019-07-29
CVE Names:         CVE-2019-3862 
====================================================================
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
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le, s390x
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le, s390x

3. Description:

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

Security Fix(es):

* libssh2: Out-of-bounds memory comparison with specially crafted message
channel request (CVE-2019-3862)

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.

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/):

1687312 - CVE-2019-3862 libssh2: Out-of-bounds memory comparison with specially crafted message channel request

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
libssh2-1.4.3-12.el7_6.3.src.rpm

x86_64:
libssh2-1.4.3-12.el7_6.3.i686.rpm
libssh2-1.4.3-12.el7_6.3.x86_64.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.i686.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.x86_64.rpm

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

noarch:
libssh2-docs-1.4.3-12.el7_6.3.noarch.rpm

x86_64:
libssh2-debuginfo-1.4.3-12.el7_6.3.i686.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.x86_64.rpm
libssh2-devel-1.4.3-12.el7_6.3.i686.rpm
libssh2-devel-1.4.3-12.el7_6.3.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
libssh2-1.4.3-12.el7_6.3.src.rpm

x86_64:
libssh2-1.4.3-12.el7_6.3.i686.rpm
libssh2-1.4.3-12.el7_6.3.x86_64.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.i686.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.x86_64.rpm

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

noarch:
libssh2-docs-1.4.3-12.el7_6.3.noarch.rpm

x86_64:
libssh2-debuginfo-1.4.3-12.el7_6.3.i686.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.x86_64.rpm
libssh2-devel-1.4.3-12.el7_6.3.i686.rpm
libssh2-devel-1.4.3-12.el7_6.3.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
libssh2-1.4.3-12.el7_6.3.src.rpm

ppc64:
libssh2-1.4.3-12.el7_6.3.ppc.rpm
libssh2-1.4.3-12.el7_6.3.ppc64.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.ppc.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.ppc64.rpm

ppc64le:
libssh2-1.4.3-12.el7_6.3.ppc64le.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.ppc64le.rpm

s390x:
libssh2-1.4.3-12.el7_6.3.s390.rpm
libssh2-1.4.3-12.el7_6.3.s390x.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.s390.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.s390x.rpm

x86_64:
libssh2-1.4.3-12.el7_6.3.i686.rpm
libssh2-1.4.3-12.el7_6.3.x86_64.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.i686.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.x86_64.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):

Source:
libssh2-1.4.3-12.el7_6.3.src.rpm

aarch64:
libssh2-1.4.3-12.el7_6.3.aarch64.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.aarch64.rpm

ppc64le:
libssh2-1.4.3-12.el7_6.3.ppc64le.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.ppc64le.rpm

s390x:
libssh2-1.4.3-12.el7_6.3.s390.rpm
libssh2-1.4.3-12.el7_6.3.s390x.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.s390.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.s390x.rpm

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

noarch:
libssh2-docs-1.4.3-12.el7_6.3.noarch.rpm

ppc64:
libssh2-debuginfo-1.4.3-12.el7_6.3.ppc.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.ppc64.rpm
libssh2-devel-1.4.3-12.el7_6.3.ppc.rpm
libssh2-devel-1.4.3-12.el7_6.3.ppc64.rpm

ppc64le:
libssh2-debuginfo-1.4.3-12.el7_6.3.ppc64le.rpm
libssh2-devel-1.4.3-12.el7_6.3.ppc64le.rpm

s390x:
libssh2-debuginfo-1.4.3-12.el7_6.3.s390.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.s390x.rpm
libssh2-devel-1.4.3-12.el7_6.3.s390.rpm
libssh2-devel-1.4.3-12.el7_6.3.s390x.rpm

x86_64:
libssh2-debuginfo-1.4.3-12.el7_6.3.i686.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.x86_64.rpm
libssh2-devel-1.4.3-12.el7_6.3.i686.rpm
libssh2-devel-1.4.3-12.el7_6.3.x86_64.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):

aarch64:
libssh2-debuginfo-1.4.3-12.el7_6.3.aarch64.rpm
libssh2-devel-1.4.3-12.el7_6.3.aarch64.rpm

noarch:
libssh2-docs-1.4.3-12.el7_6.3.noarch.rpm

ppc64le:
libssh2-debuginfo-1.4.3-12.el7_6.3.ppc64le.rpm
libssh2-devel-1.4.3-12.el7_6.3.ppc64le.rpm

s390x:
libssh2-debuginfo-1.4.3-12.el7_6.3.s390.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.s390x.rpm
libssh2-devel-1.4.3-12.el7_6.3.s390.rpm
libssh2-devel-1.4.3-12.el7_6.3.s390x.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
libssh2-1.4.3-12.el7_6.3.src.rpm

x86_64:
libssh2-1.4.3-12.el7_6.3.i686.rpm
libssh2-1.4.3-12.el7_6.3.x86_64.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.i686.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.x86_64.rpm

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

noarch:
libssh2-docs-1.4.3-12.el7_6.3.noarch.rpm

x86_64:
libssh2-debuginfo-1.4.3-12.el7_6.3.i686.rpm
libssh2-debuginfo-1.4.3-12.el7_6.3.x86_64.rpm
libssh2-devel-1.4.3-12.el7_6.3.i686.rpm
libssh2-devel-1.4.3-12.el7_6.3.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-2019-3862
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2019 Red Hat, Inc.
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