Upstream information

CVE-2016-0787 at MITRE

Description

The diffie_hellman_sha256 function in kex.c in libssh2 before 1.7.0 improperly truncates secrets to 128 or 256 bits, which makes it easier for man-in-the-middle attackers to decrypt or intercept SSH sessions via unspecified vectors, aka a "bits/bytes confusion bug."

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4.3
Vector AV:N/AC:M/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database
Base Score 5.9
Vector AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Access Vector Network
Access Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
SUSE Bugzilla entries: 967026 [RESOLVED / FIXED], 968174 [RESOLVED / DUPLICATE], 974691 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Desktop 11 SP4
  • libssh2-1 >= 1.2.9-4.2.6.1
  • libssh2_org >= 1.2.9-4.2.6.1
Patchnames:
sledsp4-libssh2_org-12445
SUSE Linux Enterprise Desktop 12
  • libssh2-1 >= 1.4.3-16.1
  • libssh2-1-32bit >= 1.4.3-16.1
  • libssh2_org >= 1.4.3-16.1
Patchnames:
SUSE-SLE-DESKTOP-12-2016-413
SUSE Linux Enterprise Desktop 12 SP1
  • libssh2-1 >= 1.4.3-16.1
  • libssh2-1-32bit >= 1.4.3-16.1
  • libssh2_org >= 1.4.3-16.1
Patchnames:
SUSE-SLE-DESKTOP-12-SP1-2016-413
SUSE Linux Enterprise Desktop 12 SP2
  • libssh2-1 >= 1.4.3-19.1
  • libssh2-1-32bit >= 1.4.3-19.1
Patchnames:
SUSE Linux Enterprise Desktop 12 SP2 GA libssh2-1
SUSE Linux Enterprise Desktop 12 SP3
  • libssh2-1 >= 1.4.3-19.1
  • libssh2-1-32bit >= 1.4.3-19.1
Patchnames:
SUSE Linux Enterprise Desktop 12 SP3 GA libssh2-1
SUSE Linux Enterprise Module for Basesystem 15
  • libssh2-1 >= 1.8.0-2.35
  • libssh2-devel >= 1.8.0-2.35
Patchnames:
SUSE Linux Enterprise Module for Basesystem 15 GA libssh2-1
SUSE Linux Enterprise Module for Containers 12
  • sles12-docker-image >= 1.1.4-20171002
  • sles12sp1-docker-image >= 1.0.7-20171002
Patchnames:
SUSE-SLE-Module-Containers-12-2017-1672
SUSE-SLE-Module-Containers-12-2017-1673
SUSE Linux Enterprise Server 11 SP4
  • libssh2-1 >= 1.2.9-4.2.6.1
  • libssh2_org >= 1.2.9-4.2.6.1
Patchnames:
slessp4-libssh2_org-12445
SUSE Linux Enterprise Server 12
  • libssh2-1 >= 1.4.3-16.1
  • libssh2-1-32bit >= 1.4.3-16.1
  • libssh2_org >= 1.4.3-16.1
Patchnames:
SUSE-SLE-SERVER-12-2016-413
SUSE Linux Enterprise Server 12 SP1
  • libssh2-1 >= 1.4.3-16.1
  • libssh2-1-32bit >= 1.4.3-16.1
  • libssh2_org >= 1.4.3-16.1
Patchnames:
SUSE-SLE-SERVER-12-SP1-2016-413
SUSE Linux Enterprise Server 12 SP2
  • libssh2-1 >= 1.4.3-19.1
  • libssh2-1-32bit >= 1.4.3-19.1
Patchnames:
SUSE Linux Enterprise Server 12 SP2 GA libssh2-1
SUSE Linux Enterprise Server 12 SP3
  • libssh2-1 >= 1.4.3-19.1
  • libssh2-1-32bit >= 1.4.3-19.1
Patchnames:
SUSE Linux Enterprise Server 12 SP3 GA libssh2-1
SUSE Linux Enterprise Server 12 SP4
  • libssh2-1 >= 1.4.3-19.1
  • libssh2-1-32bit >= 1.4.3-19.1
Patchnames:
SUSE Linux Enterprise Server 12 SP4 GA libssh2-1
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2
  • libssh2-1 >= 1.4.3-19.1
Patchnames:
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 GA libssh2-1
SUSE Linux Enterprise Server for SAP Applications 11 SP4
  • libssh2-1 >= 1.2.9-4.2.6.1
  • libssh2_org >= 1.2.9-4.2.6.1
Patchnames:
slessp4-libssh2_org-12445
SUSE Linux Enterprise Server for SAP Applications 12
  • libssh2-1 >= 1.4.3-16.1
  • libssh2-1-32bit >= 1.4.3-16.1
  • libssh2_org >= 1.4.3-16.1
Patchnames:
SUSE-SLE-SERVER-12-2016-413
SUSE Linux Enterprise Server for SAP Applications 12 SP1
  • libssh2-1 >= 1.4.3-16.1
  • libssh2-1-32bit >= 1.4.3-16.1
  • libssh2_org >= 1.4.3-16.1
Patchnames:
SUSE-SLE-SERVER-12-SP1-2016-413
SUSE Linux Enterprise Software Development Kit 11 SP4
  • libssh2-1 >= 1.2.9-4.2.6.1
  • libssh2-1-32bit >= 1.2.9-4.2.6.1
  • libssh2-1-x86 >= 1.2.9-4.2.6.1
  • libssh2-devel >= 1.2.9-4.2.6.1
  • libssh2_org >= 1.2.9-4.2.6.1
Patchnames:
sdksp4-libssh2_org-12445
SUSE Linux Enterprise Software Development Kit 12
  • libssh2-devel >= 1.4.3-16.1
  • libssh2_org >= 1.4.3-16.1
Patchnames:
SUSE-SLE-SDK-12-2016-413
SUSE Linux Enterprise Software Development Kit 12 SP1
  • libssh2-devel >= 1.4.3-16.1
  • libssh2_org >= 1.4.3-16.1
Patchnames:
SUSE-SLE-SDK-12-SP1-2016-413
SUSE Linux Enterprise Software Development Kit 12 SP2
  • libssh2-devel >= 1.4.3-19.1
Patchnames:
SUSE Linux Enterprise Software Development Kit 12 SP2 GA libssh2-devel
SUSE Linux Enterprise Software Development Kit 12 SP3
  • libssh2-devel >= 1.4.3-19.1
Patchnames:
SUSE Linux Enterprise Software Development Kit 12 SP3 GA libssh2-devel
openSUSE Leap 15.0
  • libssh2-1 >= 1.8.0-lp150.2.3
Patchnames:
openSUSE Leap 15.0 GA libssh2-1
openSUSE Leap 42.1
  • libssh2-1 >= 1.4.3-12.1
  • libssh2-1-32bit >= 1.4.3-12.1
  • libssh2-1-debuginfo >= 1.4.3-12.1
  • libssh2-1-debuginfo-32bit >= 1.4.3-12.1
  • libssh2-devel >= 1.4.3-12.1
  • libssh2_org >= 1.4.3-12.1
  • libssh2_org-debugsource >= 1.4.3-12.1
Patchnames:
openSUSE-2016-388
openSUSE Leap 42.2
  • libssh2-1 >= 1.4.3-16.1
Patchnames:
openSUSE Leap 42.2 GA libssh2-1
openSUSE Leap 42.3
  • libssh2-1 >= 1.4.3-18.3
Patchnames:
openSUSE Leap 42.3 GA libssh2-1
openSUSE Tumbleweed
  • libssh2-1 >= 1.7.0-1.5
  • libssh2-1-32bit >= 1.7.0-1.5
  • libssh2-devel >= 1.7.0-1.5
Patchnames:
openSUSE Tumbleweed GA libssh2-1


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Desktop 11 SP1 libssh2_org In progress
SUSE Linux Enterprise Desktop 11 SP2 libssh2_org Released
SUSE Linux Enterprise Desktop 11 SP3 libssh2_org Released
SUSE Linux Enterprise Desktop 11 SP4 libssh2_org Released
SUSE Linux Enterprise Desktop 12 GA libssh2_org Released
SUSE Linux Enterprise Desktop 12 SP1 libssh2_org Released
SUSE Linux Enterprise SDK 11 SP2 libssh2_org Released
SUSE Linux Enterprise SDK 11 SP3 libssh2_org Released
SUSE Linux Enterprise SDK 11 SP4 libssh2_org Released
SUSE Linux Enterprise SDK 12 GA libssh2_org Released
SUSE Linux Enterprise SDK 12 SP1 libssh2_org Released
SUSE Linux Enterprise Server 11 SP1 LTSS libssh2_org Released
SUSE Linux Enterprise Server 11 SP2 libssh2_org Released
SUSE Linux Enterprise Server 11 SP2 LTSS libssh2_org Released
SUSE Linux Enterprise Server 11 SP3 libssh2_org Released
SUSE Linux Enterprise Server 11 SP3 LTSS libssh2_org Released
SUSE Linux Enterprise Server 11 SP4 libssh2_org Released
SUSE Linux Enterprise Server 12 GA libssh2_org Released
SUSE Linux Enterprise Server 12 SP1 libssh2_org Released
SUSE Linux Enterprise Server for SAP Applications 11 SP2 libssh2_org Released
SUSE Linux Enterprise Server for VMWare 11 SP2 libssh2_org Released
SUSE Linux Enterprise Server for VMWare 11 SP3 libssh2_org Released