CVE-2019-3859

9.1 CRITICAL
Published: March 21, 2019 Modified: December 18, 2025
View on NVD

Description

An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the _libssh2_packet_require and _libssh2_packet_requirev functions. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
Source: secalert@redhat.com
Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
Source: secalert@redhat.com
Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.html
Source: secalert@redhat.com
Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00103.html
Source: secalert@redhat.com
Mailing List Third Party Advisory
http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html
Source: secalert@redhat.com
Patch Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2019/03/18/3
Source: secalert@redhat.com
Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/107485
Source: secalert@redhat.com
Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859
Source: secalert@redhat.com
Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
Source: secalert@redhat.com
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/04/msg00006.html
Source: secalert@redhat.com
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/07/msg00024.html
Source: secalert@redhat.com
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
Source: secalert@redhat.com
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/
Source: secalert@redhat.com
https://seclists.org/bugtraq/2019/Apr/25
Source: secalert@redhat.com
Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Mar/25
Source: secalert@redhat.com
Mailing List Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20190327-0005/
Source: secalert@redhat.com
Third Party Advisory
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767
Source: secalert@redhat.com
Third Party Advisory
https://www.debian.org/security/2019/dsa-4431
Source: secalert@redhat.com
Third Party Advisory
https://www.libssh2.org/CVE-2019-3859.html
Source: secalert@redhat.com
Vendor Advisory
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Source: secalert@redhat.com
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00103.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2019/03/18/3
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/107485
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/04/msg00006.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/07/msg00024.html
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/
Source: af854a3a-2127-422b-91ae-364da2661108
https://seclists.org/bugtraq/2019/Apr/25
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Mar/25
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20190327-0005/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.debian.org/security/2019/dsa-4431
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.libssh2.org/CVE-2019-3859.html
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Source: af854a3a-2127-422b-91ae-364da2661108

40 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.1 / 10.0
EPSS (Exploit Probability)
0.9%
75th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-125 CWE-125 CWE-125

Affected Vendors

debian libssh2 fedoraproject netapp opensuse

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