RHSA-2019:2399 — Security Advisory

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.

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.