CVE-2019-3855
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9 High
AI Score
Confidence
High
9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.01 Low
EPSS
Percentile
83.6%
An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way packets are read from the server. 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.
References
lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html
seclists.org/fulldisclosure/2019/Sep/42
www.openwall.com/lists/oss-security/2019/03/18/3
www.securityfocus.com/bid/107485
access.redhat.com/errata/RHSA-2019:0679
access.redhat.com/errata/RHSA-2019:1175
access.redhat.com/errata/RHSA-2019:1652
access.redhat.com/errata/RHSA-2019:1791
access.redhat.com/errata/RHSA-2019:1943
access.redhat.com/errata/RHSA-2019:2399
bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3855
lists.debian.org/debian-lts-announce/2019/03/msg00032.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6LUNHPW64IGCASZ4JQ2J5KDXNZN53DWW/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M7IF3LNHOA75O4WZWIHJLIRMA5LJUED3/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/
seclists.org/bugtraq/2019/Apr/25
seclists.org/bugtraq/2019/Mar/25
seclists.org/bugtraq/2019/Sep/49
security.netapp.com/advisory/ntap-20190327-0005/
support.apple.com/kb/HT210609
www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767
www.debian.org/security/2019/dsa-4431
www.libssh2.org/CVE-2019-3855.html
www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Related
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9 High
AI Score
Confidence
High
9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.01 Low
EPSS
Percentile
83.6%