-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: libssh2 security update Advisory ID: RHSA-2019:2399-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:2399 Issue date: 2019-08-07 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 7.3 Advanced Update Support, Red Hat Enterprise Linux 7.3 Telco Extended Update Support, and Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions. 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 Server AUS (v. 7.3) - x86_64 Red Hat Enterprise Linux Server E4S (v. 7.3) - ppc64le, x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 7.3) - noarch, x86_64 Red Hat Enterprise Linux Server Optional E4S (v. 7.3) - noarch, ppc64le, x86_64 Red Hat Enterprise Linux Server Optional TUS (v. 7.3) - noarch, x86_64 Red Hat Enterprise Linux Server TUS (v. 7.3) - 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 Server AUS (v. 7.3): Source: libssh2-1.4.3-11.el7_3.1.src.rpm x86_64: libssh2-1.4.3-11.el7_3.1.i686.rpm libssh2-1.4.3-11.el7_3.1.x86_64.rpm libssh2-debuginfo-1.4.3-11.el7_3.1.i686.rpm libssh2-debuginfo-1.4.3-11.el7_3.1.x86_64.rpm Red Hat Enterprise Linux Server E4S (v. 7.3): Source: libssh2-1.4.3-11.el7_3.1.src.rpm ppc64le: libssh2-1.4.3-11.el7_3.1.ppc64le.rpm libssh2-debuginfo-1.4.3-11.el7_3.1.ppc64le.rpm x86_64: libssh2-1.4.3-11.el7_3.1.i686.rpm libssh2-1.4.3-11.el7_3.1.x86_64.rpm libssh2-debuginfo-1.4.3-11.el7_3.1.i686.rpm libssh2-debuginfo-1.4.3-11.el7_3.1.x86_64.rpm Red Hat Enterprise Linux Server TUS (v. 7.3): Source: libssh2-1.4.3-11.el7_3.1.src.rpm x86_64: libssh2-1.4.3-11.el7_3.1.i686.rpm libssh2-1.4.3-11.el7_3.1.x86_64.rpm libssh2-debuginfo-1.4.3-11.el7_3.1.i686.rpm libssh2-debuginfo-1.4.3-11.el7_3.1.x86_64.rpm Red Hat Enterprise Linux Server Optional AUS (v. 7.3): noarch: libssh2-docs-1.4.3-11.el7_3.1.noarch.rpm x86_64: libssh2-debuginfo-1.4.3-11.el7_3.1.i686.rpm libssh2-debuginfo-1.4.3-11.el7_3.1.x86_64.rpm libssh2-devel-1.4.3-11.el7_3.1.i686.rpm libssh2-devel-1.4.3-11.el7_3.1.x86_64.rpm Red Hat Enterprise Linux Server Optional E4S (v. 7.3): noarch: libssh2-docs-1.4.3-11.el7_3.1.noarch.rpm ppc64le: libssh2-debuginfo-1.4.3-11.el7_3.1.ppc64le.rpm libssh2-devel-1.4.3-11.el7_3.1.ppc64le.rpm x86_64: libssh2-debuginfo-1.4.3-11.el7_3.1.i686.rpm libssh2-debuginfo-1.4.3-11.el7_3.1.x86_64.rpm libssh2-devel-1.4.3-11.el7_3.1.i686.rpm libssh2-devel-1.4.3-11.el7_3.1.x86_64.rpm Red Hat Enterprise Linux Server Optional TUS (v. 7.3): noarch: libssh2-docs-1.4.3-11.el7_3.1.noarch.rpm x86_64: libssh2-debuginfo-1.4.3-11.el7_3.1.i686.rpm libssh2-debuginfo-1.4.3-11.el7_3.1.x86_64.rpm libssh2-devel-1.4.3-11.el7_3.1.i686.rpm libssh2-devel-1.4.3-11.el7_3.1.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 . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXUq4BNzjgjWX9erEAQgERw//V2cQtRQXnp/xq71BGMmu+YQFaRiGCyRX ta2OmmGCeVH6+NQtDRFE5Nv5M+wa9tFhF0gCFtvSHc7X0oLYm2DwJ0nqh/X9YRAJ sNL5JmEb+Tv+4wyOLZ+/4/hjon/J+3V5fKU07dqb/tuyHbF/LL+cxID411owgnzg hvgPqC2pf8ZlWBQpjmdI3sD7ckG5FYMFLYsQfwKQih4OZ09Ilzi900HMVPKmv61a Uswrt/y8/lAibi3PQ7dNIwvc76OYcX0mcBmi0rJ7lZTQSc9eK9EpFXRr63clUIOo EKgEBgQx7bwbLS2L5kctIYJXoF3TlI0o/M1TM4P+8K+vLvcrs1Y8R9RlVeV+v+JD mEgU9YmmjcmZAWQLoR2aMm5IZI6hZnd7OJEd6TuIwXOLnWjx5t6jae+5+fGim6Zc wwXfbOTA/ffNG9MTIaUF4kHLqLOe0SACLigYjVxOzOBEVNp1GJiA9eeMO676EhrR 80yOKLigwCh31PxYcIPDqWMeftC8IHtqczBsMbNfO83XZGc1JabTa1IilK5+BZyt dT4rzJIEoqKhRFlZ06hCllSpklzcS8/NaKgWXDFN3wco/Pic2padoUpAlxZy6QNS VgID5WH4nMVzkexKzJYrRLmwJcZMcsC7aWVuYbfjkHBRrXez451VMtMDVnPTYYbh JpXWEtWVokk=WG3L -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce