[RHSA-2016:0428-01] Moderate: libssh2 security update

Fabricante: RedHat
Fecha: 10/03/2016
Identificador: RHSA-2016:0428-01
[RHSA-2016:0428-01] Moderate: libssh2 security update
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: libssh2 security update Advisory ID: RHSA-2016:0428-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-0428.html Issue date: 2016-03-10 CVE Names: CVE-2016-0787 ===================================================================== 1. Summary: Updated libssh2 packages that fix one security issue are now available for Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link 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 Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch, x86_64 3. Description: The libssh2 packages provide a library that implements the SSHv2 protocol. A type confusion issue was found in the way libssh2 generated ephemeral secrets for the diffie-hellman-group1 and diffie-hellman-group14 key exchange methods. This would cause an SSHv2 Diffie-Hellman handshake to use significantly less secure random parameters. (CVE-2016-0787) Red Hat would like to thank Aris Adamantiadis for reporting this issue. All libssh2 users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing these updated packages, all running applications using libssh2 must be restarted for this update to take effect. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1306021 - CVE-2016-0787 libssh2: bits/bytes confusion resulting in truncated Diffie-Hellman secret length 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: libssh2-1.4.2-2.el6_7.1.src.rpm i386: libssh2-1.4.2-2.el6_7.1.i686.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.i686.rpm x86_64: libssh2-1.4.2-2.el6_7.1.i686.rpm libssh2-1.4.2-2.el6_7.1.x86_64.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.i686.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): i386: libssh2-debuginfo-1.4.2-2.el6_7.1.i686.rpm libssh2-devel-1.4.2-2.el6_7.1.i686.rpm libssh2-docs-1.4.2-2.el6_7.1.i686.rpm x86_64: libssh2-debuginfo-1.4.2-2.el6_7.1.i686.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.x86_64.rpm libssh2-devel-1.4.2-2.el6_7.1.i686.rpm libssh2-devel-1.4.2-2.el6_7.1.x86_64.rpm libssh2-docs-1.4.2-2.el6_7.1.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: libssh2-1.4.2-2.el6_7.1.src.rpm x86_64: libssh2-1.4.2-2.el6_7.1.i686.rpm libssh2-1.4.2-2.el6_7.1.x86_64.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.i686.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): x86_64: libssh2-debuginfo-1.4.2-2.el6_7.1.i686.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.x86_64.rpm libssh2-devel-1.4.2-2.el6_7.1.i686.rpm libssh2-devel-1.4.2-2.el6_7.1.x86_64.rpm libssh2-docs-1.4.2-2.el6_7.1.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: libssh2-1.4.2-2.el6_7.1.src.rpm i386: libssh2-1.4.2-2.el6_7.1.i686.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.i686.rpm ppc64: libssh2-1.4.2-2.el6_7.1.ppc.rpm libssh2-1.4.2-2.el6_7.1.ppc64.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.ppc.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.ppc64.rpm s390x: libssh2-1.4.2-2.el6_7.1.s390.rpm libssh2-1.4.2-2.el6_7.1.s390x.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.s390.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.s390x.rpm x86_64: libssh2-1.4.2-2.el6_7.1.i686.rpm libssh2-1.4.2-2.el6_7.1.x86_64.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.i686.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): i386: libssh2-debuginfo-1.4.2-2.el6_7.1.i686.rpm libssh2-devel-1.4.2-2.el6_7.1.i686.rpm libssh2-docs-1.4.2-2.el6_7.1.i686.rpm ppc64: libssh2-debuginfo-1.4.2-2.el6_7.1.ppc.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.ppc64.rpm libssh2-devel-1.4.2-2.el6_7.1.ppc.rpm libssh2-devel-1.4.2-2.el6_7.1.ppc64.rpm libssh2-docs-1.4.2-2.el6_7.1.ppc64.rpm s390x: libssh2-debuginfo-1.4.2-2.el6_7.1.s390.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.s390x.rpm libssh2-devel-1.4.2-2.el6_7.1.s390.rpm libssh2-devel-1.4.2-2.el6_7.1.s390x.rpm libssh2-docs-1.4.2-2.el6_7.1.s390x.rpm x86_64: libssh2-debuginfo-1.4.2-2.el6_7.1.i686.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.x86_64.rpm libssh2-devel-1.4.2-2.el6_7.1.i686.rpm libssh2-devel-1.4.2-2.el6_7.1.x86_64.rpm libssh2-docs-1.4.2-2.el6_7.1.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: libssh2-1.4.2-2.el6_7.1.src.rpm i386: libssh2-1.4.2-2.el6_7.1.i686.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.i686.rpm x86_64: libssh2-1.4.2-2.el6_7.1.i686.rpm libssh2-1.4.2-2.el6_7.1.x86_64.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.i686.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): i386: libssh2-debuginfo-1.4.2-2.el6_7.1.i686.rpm libssh2-devel-1.4.2-2.el6_7.1.i686.rpm libssh2-docs-1.4.2-2.el6_7.1.i686.rpm x86_64: libssh2-debuginfo-1.4.2-2.el6_7.1.i686.rpm libssh2-debuginfo-1.4.2-2.el6_7.1.x86_64.rpm libssh2-devel-1.4.2-2.el6_7.1.i686.rpm libssh2-devel-1.4.2-2.el6_7.1.x86_64.rpm libssh2-docs-1.4.2-2.el6_7.1.x86_64.rpm Red Hat Enterprise Linux Client (v. 7): Source: libssh2-1.4.3-10.el7_2.1.src.rpm x86_64: libssh2-1.4.3-10.el7_2.1.i686.rpm libssh2-1.4.3-10.el7_2.1.x86_64.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.i686.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): noarch: libssh2-docs-1.4.3-10.el7_2.1.noarch.rpm x86_64: libssh2-debuginfo-1.4.3-10.el7_2.1.i686.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.x86_64.rpm libssh2-devel-1.4.3-10.el7_2.1.i686.rpm libssh2-devel-1.4.3-10.el7_2.1.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: libssh2-1.4.3-10.el7_2.1.src.rpm x86_64: libssh2-1.4.3-10.el7_2.1.i686.rpm libssh2-1.4.3-10.el7_2.1.x86_64.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.i686.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): noarch: libssh2-docs-1.4.3-10.el7_2.1.noarch.rpm x86_64: libssh2-debuginfo-1.4.3-10.el7_2.1.i686.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.x86_64.rpm libssh2-devel-1.4.3-10.el7_2.1.i686.rpm libssh2-devel-1.4.3-10.el7_2.1.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: libssh2-1.4.3-10.el7_2.1.src.rpm ppc64: libssh2-1.4.3-10.el7_2.1.ppc.rpm libssh2-1.4.3-10.el7_2.1.ppc64.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.ppc.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.ppc64.rpm ppc64le: libssh2-1.4.3-10.el7_2.1.ppc64le.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.ppc64le.rpm s390x: libssh2-1.4.3-10.el7_2.1.s390.rpm libssh2-1.4.3-10.el7_2.1.s390x.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.s390.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.s390x.rpm x86_64: libssh2-1.4.3-10.el7_2.1.i686.rpm libssh2-1.4.3-10.el7_2.1.x86_64.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.i686.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): noarch: libssh2-docs-1.4.3-10.el7_2.1.noarch.rpm ppc64: libssh2-debuginfo-1.4.3-10.el7_2.1.ppc.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.ppc64.rpm libssh2-devel-1.4.3-10.el7_2.1.ppc.rpm libssh2-devel-1.4.3-10.el7_2.1.ppc64.rpm ppc64le: libssh2-debuginfo-1.4.3-10.el7_2.1.ppc64le.rpm libssh2-devel-1.4.3-10.el7_2.1.ppc64le.rpm s390x: libssh2-debuginfo-1.4.3-10.el7_2.1.s390.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.s390x.rpm libssh2-devel-1.4.3-10.el7_2.1.s390.rpm libssh2-devel-1.4.3-10.el7_2.1.s390x.rpm x86_64: libssh2-debuginfo-1.4.3-10.el7_2.1.i686.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.x86_64.rpm libssh2-devel-1.4.3-10.el7_2.1.i686.rpm libssh2-devel-1.4.3-10.el7_2.1.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: libssh2-1.4.3-10.el7_2.1.src.rpm x86_64: libssh2-1.4.3-10.el7_2.1.i686.rpm libssh2-1.4.3-10.el7_2.1.x86_64.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.i686.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): noarch: libssh2-docs-1.4.3-10.el7_2.1.noarch.rpm x86_64: libssh2-debuginfo-1.4.3-10.el7_2.1.i686.rpm libssh2-debuginfo-1.4.3-10.el7_2.1.x86_64.rpm libssh2-devel-1.4.3-10.el7_2.1.i686.rpm libssh2-devel-1.4.3-10.el7_2.1.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-2016-0787 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 2016 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFW4ScQXlSAg2UNWIIRApTzAKCuG+NNHVGaHtn04tpEPJ0rnc9yfACdEpra Kw20KeBvdIa4xswaYD0iOPg= =G//Z -----END PGP SIGNATURE-----