CVE-2019-3859

CRITICAL

Libssh2 < 1.8.1 - Out-of-Bounds Read

Title source: rule

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.

References (20)

Core 20

Core References

Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist

http://www.openwall.com/lists/oss-security/2019/03/18/3

Mailing List, Patch, Third Party Advisory mailing-list x_refsource_bugtraq

https://seclists.org/bugtraq/2019/Mar/25

Vendor Advisory x_refsource_misc

https://www.libssh2.org/CVE-2019-3859.html

Issue Tracking, Patch, Third Party Advisory x_refsource_confirm

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859

Patch, Third Party Advisory, VDB Entry x_refsource_misc

http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/107485

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/

Third Party Advisory x_refsource_confirm

https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html

Third Party Advisory x_refsource_confirm

https://security.netapp.com/advisory/ntap-20190327-0005/

Mailing List, Third Party Advisory vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

https://lists.debian.org/debian-lts-announce/2019/04/msg00006.html

Mailing List, Third Party Advisory vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/

Third Party Advisory vendor-advisory x_refsource_debian

https://www.debian.org/security/2019/dsa-4431

Mailing List, Third Party Advisory mailing-list x_refsource_bugtraq

https://seclists.org/bugtraq/2019/Apr/25

Mailing List, Third Party Advisory vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.html

Mailing List, Third Party Advisory vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00103.html

Mailing List mailing-list x_refsource_mlist

https://lists.debian.org/debian-lts-announce/2019/07/msg00024.html

Vendor Advisory x_refsource_misc

https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

Scores

CVSS v3 9.1

EPSS 0.0118

EPSS Percentile 78.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-125

Status published

Products (8)

debian/debian_linux 8.0

debian/debian_linux 9.0

fedoraproject/fedora 28

fedoraproject/fedora 29

libssh2/libssh2 < 1.8.1

netapp/ontap_select_deploy_administration_utility

opensuse/leap 15.0

opensuse/leap 42.3

Published Mar 21, 2019

Tracked Since Feb 18, 2026