MEDIUM
An out of bounds read flaw was discovered in libssh2 before 1.8.1 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html
http://www.openwall.com/lists/oss-security/2019/03/18/3
http://www.securityfocus.com/bid/107485
https://access.redhat.com/errata/RHSA-2019:2136
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3858
https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
https://seclists.org/bugtraq/2019/Apr/25
https://seclists.org/bugtraq/2019/Mar/25
https://security.netapp.com/advisory/ntap-20190327-0005/
https://www.debian.org/security/2019/dsa-4431
https://www.libssh2.org/CVE-2019-3858.html
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Source: MITRE
Published: 2019-03-21
Updated: 2019-04-15
Type: CWE-125
Base Score: 6.4
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P
Impact Score: 4.9
Exploitability Score: 10
Severity: MEDIUM
Base Score: 9.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Impact Score: 5.2
Exploitability Score: 3.9
Severity: CRITICAL