Vulnerability CVE-2019-3863


Published: 2019-03-25

Description:
A flaw was found in libssh2 before 1.8.1. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used as an index to copy memory causing in an out of bounds memory write error.

Type:

CWE-787

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Redhat -> Enterprise linux desktop 
Redhat -> Enterprise linux server 
Redhat -> Enterprise linux server aus 
Redhat -> Enterprise linux server eus 
Redhat -> Enterprise linux server tus 
Redhat -> Enterprise linux workstation 
Opensuse -> LEAP 
Netapp -> Ontap select deploy administration utility 
Libssh2 -> Libssh2 
Debian -> Debian linux 

 References:
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
https://access.redhat.com/errata/RHSA-2019:0679
https://access.redhat.com/errata/RHSA-2019:1175
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3863
https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
https://seclists.org/bugtraq/2019/Apr/25
https://security.netapp.com/advisory/ntap-20190327-0005/
https://www.debian.org/security/2019/dsa-4431
https://www.libssh2.org/CVE-2019-3863.html

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