Upstream information

CVE-2016-0739 at MITRE

Description

libssh before 0.7.3 improperly truncates ephemeral secrets generated for the (1) diffie-hellman-group1 and (2) diffie-hellman-group14 key exchange methods to 128 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

CVSS v2 Scores
  National Vulnerability Database SUSE
Base Score 4.30 7.28
Vector AV:N/AC:M/Au:N/C:P/I:N/A:N AV:N/AC:H/Au:N/C:C/I:C/A:P
Access Vector Network Network
Access Complexity Medium High
Authentication None None
Confidentiality Impact Partial Complete
Integrity Impact None Complete
Availability Impact None Partial
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: 965875 [RESOLVED / FIXED], 967026 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Desktop 11 SP4
  • libssh >= 0.2-5.22.1
  • libssh2 >= 0.2-5.22.1
Patchnames:
sledsp4-libssh-12430
SUSE Linux Enterprise Desktop 12
  • libssh >= 0.6.3-11.1
  • libssh4 >= 0.6.3-11.1
Patchnames:
SUSE-SLE-DESKTOP-12-2016-359
SUSE Linux Enterprise Desktop 12 SP1
  • libssh >= 0.6.3-11.1
  • libssh4 >= 0.6.3-11.1
Patchnames:
SUSE-SLE-DESKTOP-12-SP1-2016-359
SUSE Linux Enterprise Desktop 12 SP2
  • libssh4 >= 0.6.3-11.1
Patchnames:
SUSE Linux Enterprise Desktop 12 SP2 GA libssh4
SUSE Linux Enterprise Software Development Kit 11 SP4
  • libssh >= 0.2-5.22.1
  • libssh-devel >= 0.2-5.22.1
  • libssh-devel-doc >= 0.2-5.22.1
  • libssh2 >= 0.2-5.22.1
Patchnames:
sdksp4-libssh-12430
SUSE Linux Enterprise Software Development Kit 12
  • libssh >= 0.6.3-11.1
  • libssh-devel >= 0.6.3-11.1
  • libssh-devel-doc >= 0.6.3-11.1
  • libssh4 >= 0.6.3-11.1
Patchnames:
SUSE-SLE-SDK-12-2016-359
SUSE Linux Enterprise Software Development Kit 12 SP1
  • libssh >= 0.6.3-11.1
  • libssh-devel >= 0.6.3-11.1
  • libssh-devel-doc >= 0.6.3-11.1
  • libssh4 >= 0.6.3-11.1
Patchnames:
SUSE-SLE-SDK-12-SP1-2016-359
SUSE Linux Enterprise Software Development Kit 12 SP2
  • libssh-devel >= 0.6.3-11.1
  • libssh-devel-doc >= 0.6.3-11.1
  • libssh4 >= 0.6.3-11.1
Patchnames:
SUSE Linux Enterprise Software Development Kit 12 SP2 GA libssh-devel
SUSE Linux Enterprise Workstation Extension 12
  • libssh >= 0.6.3-11.1
  • libssh4 >= 0.6.3-11.1
Patchnames:
SUSE-SLE-WE-12-2016-359
SUSE Linux Enterprise Workstation Extension 12 SP1
  • libssh >= 0.6.3-11.1
  • libssh4 >= 0.6.3-11.1
Patchnames:
SUSE-SLE-WE-12-SP1-2016-359
SUSE Linux Enterprise Workstation Extension 12 SP2
  • libssh4 >= 0.6.3-11.1
Patchnames:
SUSE Linux Enterprise Workstation Extension 12 SP2 GA libssh4
openSUSE 13.2
  • libssh >= 0.6.3-2.10.1
  • libssh-debugsource >= 0.6.3-2.10.1
  • libssh-devel >= 0.6.3-2.10.1
  • libssh-devel-doc >= 0.6.3-2.10.1
  • libssh4 >= 0.6.3-2.10.1
  • libssh4-32bit >= 0.6.3-2.10.1
  • libssh4-debuginfo >= 0.6.3-2.10.1
  • libssh4-debuginfo-32bit >= 0.6.3-2.10.1
Patchnames:
openSUSE-2016-394
openSUSE Leap 42.1
  • libssh >= 0.6.3-10.1
  • libssh-debugsource >= 0.6.3-10.1
  • libssh-devel >= 0.6.3-10.1
  • libssh-devel-doc >= 0.6.3-10.1
  • libssh4 >= 0.6.3-10.1
  • libssh4-32bit >= 0.6.3-10.1
  • libssh4-debuginfo >= 0.6.3-10.1
  • libssh4-debuginfo-32bit >= 0.6.3-10.1
Patchnames:
openSUSE-2016-328
openSUSE Leap 42.2
  • libssh-devel >= 0.6.3-11.5
  • libssh4 >= 0.6.3-11.5
Patchnames:
openSUSE Leap 42.2 GA libssh-devel