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CVE-2019-3857

Published: Mar 25, 2019Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-190
8.8HIGH
NVD MITRE
EPSS Score
6.1%
Top 7.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-190CWE-787

Affected Products

Сообщество свободного программного обеспечения
oss-projectaka fsf
libssh2On-premLibrary
Operating Systems
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
The libssh2 Project
oss-projectaka libssh2
libssh2Library
OSS Libraries / generic-library
Red Hat Inc.
commercial·USaka redhat, red hat
Red Hat Enterprise LinuxOn-premOS
Operating Systems / linux-distro
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
Novell Inc.
commercial·US
OpenSUSE LeapOn-premOS
Operating Systems / linux-distro
Fedora Project
oss-project·USaka fedora
FedoraOn-premOS
Operating Systems / linux-distro
and 13 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2019-3857?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3857
bugzilla.redhat.com
https://www.libssh2.org/CVE-2019-3857.html
libssh2.org
https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
lists.debian.org
and 26 more references View all →

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