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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.2427 Important: libssh2 security update 3 July 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libssh2 Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2019-3863 CVE-2019-3857 CVE-2019-3856 CVE-2019-3855 Reference: ESB-2019.2344 ESB-2019.1789 ESB-2019.1726 ESB-2019.1301 Original Bulletin: https://access.redhat.com/errata/RHSA-2019:1652 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: libssh2 security update Advisory ID: RHSA-2019:1652-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:1652 Issue date: 2019-07-02 CVE Names: CVE-2019-3855 CVE-2019-3856 CVE-2019-3857 CVE-2019-3863 ===================================================================== 1. Summary: An update for libssh2 is now available for Red Hat Enterprise Linux 6. 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. 2. Relevant releases/architectures: 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 Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64 3. Description: The libssh2 packages provide a library that implements the SSH2 protocol. Security Fix(es): * libssh2: Integer overflow in transport read resulting in out of bounds write (CVE-2019-3855) * libssh2: Integer overflow in keyboard interactive handling resulting in out of bounds write (CVE-2019-3856) * libssh2: Integer overflow in SSH packet processing channel resulting in out of bounds write (CVE-2019-3857) * libssh2: Integer overflow in user authenticate keyboard interactive allows out-of-bounds writes (CVE-2019-3863) 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/): 1687303 - CVE-2019-3855 libssh2: Integer overflow in transport read resulting in out of bounds write 1687304 - CVE-2019-3856 libssh2: Integer overflow in keyboard interactive handling resulting in out of bounds write 1687305 - CVE-2019-3857 libssh2: Integer overflow in SSH packet processing channel resulting in out of bounds write 1687313 - CVE-2019-3863 libssh2: Integer overflow in user authenticate keyboard interactive allows out-of-bounds writes 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: libssh2-1.4.2-3.el6_10.1.src.rpm i386: libssh2-1.4.2-3.el6_10.1.i686.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.i686.rpm x86_64: libssh2-1.4.2-3.el6_10.1.i686.rpm libssh2-1.4.2-3.el6_10.1.x86_64.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.i686.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): i386: libssh2-debuginfo-1.4.2-3.el6_10.1.i686.rpm libssh2-devel-1.4.2-3.el6_10.1.i686.rpm libssh2-docs-1.4.2-3.el6_10.1.i686.rpm x86_64: libssh2-debuginfo-1.4.2-3.el6_10.1.i686.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.x86_64.rpm libssh2-devel-1.4.2-3.el6_10.1.i686.rpm libssh2-devel-1.4.2-3.el6_10.1.x86_64.rpm libssh2-docs-1.4.2-3.el6_10.1.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: libssh2-1.4.2-3.el6_10.1.src.rpm x86_64: libssh2-1.4.2-3.el6_10.1.i686.rpm libssh2-1.4.2-3.el6_10.1.x86_64.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.i686.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): x86_64: libssh2-debuginfo-1.4.2-3.el6_10.1.i686.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.x86_64.rpm libssh2-devel-1.4.2-3.el6_10.1.i686.rpm libssh2-devel-1.4.2-3.el6_10.1.x86_64.rpm libssh2-docs-1.4.2-3.el6_10.1.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: libssh2-1.4.2-3.el6_10.1.src.rpm i386: libssh2-1.4.2-3.el6_10.1.i686.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.i686.rpm ppc64: libssh2-1.4.2-3.el6_10.1.ppc.rpm libssh2-1.4.2-3.el6_10.1.ppc64.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.ppc.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.ppc64.rpm s390x: libssh2-1.4.2-3.el6_10.1.s390.rpm libssh2-1.4.2-3.el6_10.1.s390x.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.s390.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.s390x.rpm x86_64: libssh2-1.4.2-3.el6_10.1.i686.rpm libssh2-1.4.2-3.el6_10.1.x86_64.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.i686.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): i386: libssh2-debuginfo-1.4.2-3.el6_10.1.i686.rpm libssh2-devel-1.4.2-3.el6_10.1.i686.rpm libssh2-docs-1.4.2-3.el6_10.1.i686.rpm ppc64: libssh2-debuginfo-1.4.2-3.el6_10.1.ppc.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.ppc64.rpm libssh2-devel-1.4.2-3.el6_10.1.ppc.rpm libssh2-devel-1.4.2-3.el6_10.1.ppc64.rpm libssh2-docs-1.4.2-3.el6_10.1.ppc64.rpm s390x: libssh2-debuginfo-1.4.2-3.el6_10.1.s390.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.s390x.rpm libssh2-devel-1.4.2-3.el6_10.1.s390.rpm libssh2-devel-1.4.2-3.el6_10.1.s390x.rpm libssh2-docs-1.4.2-3.el6_10.1.s390x.rpm x86_64: libssh2-debuginfo-1.4.2-3.el6_10.1.i686.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.x86_64.rpm libssh2-devel-1.4.2-3.el6_10.1.i686.rpm libssh2-devel-1.4.2-3.el6_10.1.x86_64.rpm libssh2-docs-1.4.2-3.el6_10.1.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: libssh2-1.4.2-3.el6_10.1.src.rpm i386: libssh2-1.4.2-3.el6_10.1.i686.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.i686.rpm x86_64: libssh2-1.4.2-3.el6_10.1.i686.rpm libssh2-1.4.2-3.el6_10.1.x86_64.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.i686.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): i386: libssh2-debuginfo-1.4.2-3.el6_10.1.i686.rpm libssh2-devel-1.4.2-3.el6_10.1.i686.rpm libssh2-docs-1.4.2-3.el6_10.1.i686.rpm x86_64: libssh2-debuginfo-1.4.2-3.el6_10.1.i686.rpm libssh2-debuginfo-1.4.2-3.el6_10.1.x86_64.rpm libssh2-devel-1.4.2-3.el6_10.1.i686.rpm libssh2-devel-1.4.2-3.el6_10.1.x86_64.rpm libssh2-docs-1.4.2-3.el6_10.1.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-2019-3855 https://access.redhat.com/security/cve/CVE-2019-3856 https://access.redhat.com/security/cve/CVE-2019-3857 https://access.redhat.com/security/cve/CVE-2019-3863 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXRtECtzjgjWX9erEAQi/TQ/8DrWhCl0cm7Mq3Jwxy7irw+8oTuFRBJa+ wEHbwmn7aZSP+cWmc2mkK6w/UCY8E6GopyBU+EG+K3IGvMviMkLCNBXqQ677l1ha nCCsq792PNwopzH3f+iVtdw2m7CD4gDSpiNLi+mdKSP+wpvbDEQLkA98pG5G/BxB dQg87Yd9W8cDg2yqVX7e83L6htZsH60M+YzCqXvqLMLqaV1pMc0XQOT22mIXqcy5 VxoS8Rk7TVAZEMsaw7niKA+flJEUbaBLVgNyp7lR34LoYbJ6mJbFpMtWn34LDaFT jaLVhblIqUAGDDKZvgLv6nxw0olqgUx7XB94upIuDlqItaowfG8K2iVqdg9X5BWM RacPOrYgFMz9PeAyvfDRQavkKog2CiXnwtaqaiCQq24+ltOUpCWATA+GfMgoHTcA cPmKfcHCFrqQtn5uHUQkClOPLf2Y3/PMZ2kndMzfq83pk/MNTo6FrmriLTZlVjXV aSXdsJmJTk4vwDoUfVAJStYtaVUOkQbi7abc/6zqyXBfZYtOXcW/wOxpEkzSyjqs wTrOt44CtQue4JSGUc0jVu2EPHOUhdjsukcEGZUy7Kz6UmDDS7ZF2oZa1SPOy6/N ZYScGaajW4cxDffPNPF2GRm83o5IwZFrEOx5Mgwr8683XU+QK7Ygz+SwS/GizPyB a9Sb8jA7bhE= =R9ze - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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