Description
A flaw was found in libssh2 before 1.8.1 creating a vulnerability on the SSH client side. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used by the SSH client as an index to copy memory causing in an out of bounds memory write error.
CVSS breakdown
CVSS 3.0
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Debian / debian_linux8.0 – 8.0
- libssh2 / libssh21.8.1
- NetApp / ONTAP Select Deploy administration utility
- openSUSE / Leap15.0 – 15.0
- openSUSE / Leap42.3 – 42.3
- RedHat / enterprise_linux_desktop7.0 – 7.0
- RedHat / enterprise_linux_server7.0 – 7.0
- RedHat / enterprise_linux_server_aus7.6 – 7.6
- RedHat / enterprise_linux_server_eus7.6 – 7.6
- RedHat / enterprise_linux_server_tus7.6 – 7.6
- RedHat / enterprise_linux_workstation7.0 – 7.0
- The libssh2 Project / libssh21.8.1 – 1.8.1
References
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3863
- MISChttps://www.libssh2.org/CVE-2019-3863.html
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
- MISChttps://security.netapp.com/advisory/ntap-20190327-0005/
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:0679
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
- VENDOR_ADVISORYhttps://www.debian.org/security/2019/dsa-4431
- MAILING_LISThttps://seclists.org/bugtraq/2019/Apr/25
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:1175
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:1652
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:1791
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:1943
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:2399
- VENDOR_ADVISORYhttps://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Updated 10m ago · 8 sources