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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.1047 Important: libssh2 security update 29 March 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libssh2 Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 7 Red Hat Enterprise Linux WS/Desktop 7 Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2019-3863 CVE-2019-3857 CVE-2019-3856 CVE-2019-3855 Reference: ESB-2019.0996 ESB-2019.0911 ESB-2019.0894 Original Bulletin: https://access.redhat.com/errata/RHSA-2019:0679 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: libssh2 security update Advisory ID: RHSA-2019:0679-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:0679 Issue date: 2019-03-28 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 7. 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 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: 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 Client (v. 7): Source: libssh2-1.4.3-12.el7_6.2.src.rpm x86_64: libssh2-1.4.3-12.el7_6.2.i686.rpm libssh2-1.4.3-12.el7_6.2.x86_64.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.i686.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): noarch: libssh2-docs-1.4.3-12.el7_6.2.noarch.rpm x86_64: libssh2-debuginfo-1.4.3-12.el7_6.2.i686.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.x86_64.rpm libssh2-devel-1.4.3-12.el7_6.2.i686.rpm libssh2-devel-1.4.3-12.el7_6.2.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: libssh2-1.4.3-12.el7_6.2.src.rpm x86_64: libssh2-1.4.3-12.el7_6.2.i686.rpm libssh2-1.4.3-12.el7_6.2.x86_64.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.i686.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): noarch: libssh2-docs-1.4.3-12.el7_6.2.noarch.rpm x86_64: libssh2-debuginfo-1.4.3-12.el7_6.2.i686.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.x86_64.rpm libssh2-devel-1.4.3-12.el7_6.2.i686.rpm libssh2-devel-1.4.3-12.el7_6.2.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: libssh2-1.4.3-12.el7_6.2.src.rpm ppc64: libssh2-1.4.3-12.el7_6.2.ppc.rpm libssh2-1.4.3-12.el7_6.2.ppc64.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.ppc.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.ppc64.rpm ppc64le: libssh2-1.4.3-12.el7_6.2.ppc64le.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.ppc64le.rpm s390x: libssh2-1.4.3-12.el7_6.2.s390.rpm libssh2-1.4.3-12.el7_6.2.s390x.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.s390.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.s390x.rpm x86_64: libssh2-1.4.3-12.el7_6.2.i686.rpm libssh2-1.4.3-12.el7_6.2.x86_64.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.i686.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.x86_64.rpm Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7): Source: libssh2-1.4.3-12.el7_6.2.src.rpm aarch64: libssh2-1.4.3-12.el7_6.2.aarch64.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.aarch64.rpm ppc64le: libssh2-1.4.3-12.el7_6.2.ppc64le.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.ppc64le.rpm s390x: libssh2-1.4.3-12.el7_6.2.s390.rpm libssh2-1.4.3-12.el7_6.2.s390x.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.s390.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.s390x.rpm Red Hat Enterprise Linux Server Optional (v. 7): noarch: libssh2-docs-1.4.3-12.el7_6.2.noarch.rpm ppc64: libssh2-debuginfo-1.4.3-12.el7_6.2.ppc.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.ppc64.rpm libssh2-devel-1.4.3-12.el7_6.2.ppc.rpm libssh2-devel-1.4.3-12.el7_6.2.ppc64.rpm ppc64le: libssh2-debuginfo-1.4.3-12.el7_6.2.ppc64le.rpm libssh2-devel-1.4.3-12.el7_6.2.ppc64le.rpm s390x: libssh2-debuginfo-1.4.3-12.el7_6.2.s390.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.s390x.rpm libssh2-devel-1.4.3-12.el7_6.2.s390.rpm libssh2-devel-1.4.3-12.el7_6.2.s390x.rpm x86_64: libssh2-debuginfo-1.4.3-12.el7_6.2.i686.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.x86_64.rpm libssh2-devel-1.4.3-12.el7_6.2.i686.rpm libssh2-devel-1.4.3-12.el7_6.2.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_6.2.aarch64.rpm libssh2-devel-1.4.3-12.el7_6.2.aarch64.rpm noarch: libssh2-docs-1.4.3-12.el7_6.2.noarch.rpm ppc64le: libssh2-debuginfo-1.4.3-12.el7_6.2.ppc64le.rpm libssh2-devel-1.4.3-12.el7_6.2.ppc64le.rpm s390x: libssh2-debuginfo-1.4.3-12.el7_6.2.s390.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.s390x.rpm libssh2-devel-1.4.3-12.el7_6.2.s390.rpm libssh2-devel-1.4.3-12.el7_6.2.s390x.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: libssh2-1.4.3-12.el7_6.2.src.rpm x86_64: libssh2-1.4.3-12.el7_6.2.i686.rpm libssh2-1.4.3-12.el7_6.2.x86_64.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.i686.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): noarch: libssh2-docs-1.4.3-12.el7_6.2.noarch.rpm x86_64: libssh2-debuginfo-1.4.3-12.el7_6.2.i686.rpm libssh2-debuginfo-1.4.3-12.el7_6.2.x86_64.rpm libssh2-devel-1.4.3-12.el7_6.2.i686.rpm libssh2-devel-1.4.3-12.el7_6.2.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 iQIVAwUBXJznXNzjgjWX9erEAQiaLQ/+NOZQa78T9tZT0qw516dUqmfm8y03YJDd LDgRcAbSQIlYF59kO4SxBZ13APCc8ippJXzSeBS49AeQLdesjaj3bYnWXeAiDwIE wE2zqYhjBH3YUW8vmoP26sC4Ov8rijsevHQcn7PcRiTrR/gSdzU59LkxouyWokAC nFVzke+D7aQMFv6mo9EbEEH1Q85/WIfJKKB4XuCHM13L1ohLuVVQnsjxwZtq8hev FCQp1moLuyyvDGjEa0lhp05gqIoDGPccpAzlcbz/HWgkb/6nGOQeTsGkN4MPCqbA O5YilLdgg3/HASMhtWopCgLQucDI6UEdA4sqAmQFJT5sB19kfJVRDQYSKIim8Tno 7DICVw0x5p4YzexurImz5tORwsAhTsKt52Z32KEgaVfZLqBwdJP+l3mQaS4H9wZ7 z4hSB+EPaK6UbKJVq5D5/vhYJlQsSd8sDkLcz30UqNpY0o3LwqBK/8m8apikjxCu cdM0ykUZJsccAB0zwuteBP9dEvyUHFhSkpQgWDZIqHgOuE2jpCnIRpl3aRDgB+ND XkktDObjALWmIqg1Zs6+vLIDhGKG08ZNSpwaLZQrvFK59aGA/2BTDgupJh607Tv4 D/l/yO/KxEaUQa5zsFpej2gIfIFElzZc82/ZmWaViyALtpjJ/kKdC4Fzb5PlVIuH tLzz6XhldNU= =R5e5 - -----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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