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CVE-2019-3857

Status Candidate

Overview

An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.

Related Files

Red Hat Security Advisory 2019-2399-01
Posted Aug 7, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2399-01 - The libssh2 packages provide a library that implements the SSH2 protocol. Issues addressed include an out of bounds write vulnerability.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2019-3855, CVE-2019-3856, CVE-2019-3857, CVE-2019-3863
MD5 | 27a714f7f28e77c059ab5a506f6e9e2d
Red Hat Security Advisory 2019-1943-01
Posted Jul 30, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-1943-01 - The libssh2 packages provide a library that implements the SSH2 protocol. Issues addressed include an out of bounds write vulnerability.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2019-3855, CVE-2019-3856, CVE-2019-3857, CVE-2019-3863
MD5 | de1b12cdeca41590a8389934c5d69d4f
Red Hat Security Advisory 2019-1791-01
Posted Jul 16, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-1791-01 - The libssh2 packages provide a library that implements the SSH2 protocol. Issues addressed include an out of bounds write vulnerability.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2019-3855, CVE-2019-3856, CVE-2019-3857, CVE-2019-3863
MD5 | 069b0013cb2714eb78933e51a27be507
Red Hat Security Advisory 2019-1652-01
Posted Jul 2, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-1652-01 - The libssh2 packages provide a library that implements the SSH2 protocol. Issues addressed include an out of bounds write vulnerability.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2019-3855, CVE-2019-3856, CVE-2019-3857, CVE-2019-3863
MD5 | d3621b29cc99665de8647ad9778affbe
Red Hat Security Advisory 2019-1175-01
Posted May 15, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-1175-01 - Kernel-based Virtual Machine offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems. Issues addressed include buffer overflow and out of bounds write vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2018-20815, CVE-2019-11091, CVE-2019-3855, CVE-2019-3856, CVE-2019-3857, CVE-2019-3863
MD5 | 67a8f4a2c3cfd1ef5fa1086fd81faefb
Debian Security Advisory 4431-1
Posted Apr 15, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4431-1 - Chris Coulson discovered several vulnerabilities in libssh2, a SSH2 client-side library, which could result in denial of service, information leaks or the execution of arbitrary code.

tags | advisory, denial of service, arbitrary, vulnerability
systems | linux, debian
advisories | CVE-2019-3855, CVE-2019-3856, CVE-2019-3857, CVE-2019-3858, CVE-2019-3859, CVE-2019-3860, CVE-2019-3861, CVE-2019-3862, CVE-2019-3863
MD5 | bea7798b5732080dad27f598640a90fe
Red Hat Security Advisory 2019-0679-01
Posted Mar 28, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-0679-01 - The libssh2 packages provide a library that implements the SSH2 protocol. Issues addressed include an out of bounds write vulnerability.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2019-3855, CVE-2019-3856, CVE-2019-3857, CVE-2019-3863
MD5 | a11fb2a1695f5e4bec9e5f71c0bc7ab8
Slackware Security Advisory - libssh2 Updates
Posted Mar 19, 2019
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New libssh2 packages are available for Slackware 14.2 and -current to fix security issues.

tags | advisory
systems | linux, slackware
advisories | CVE-2019-3855, CVE-2019-3856, CVE-2019-3857, CVE-2019-3858, CVE-2019-3859, CVE-2019-3860, CVE-2019-3861, CVE-2019-3862, CVE-2019-3863
MD5 | 75dc61143a842e32ab8500f75ed4d9ec
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