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SUSE SLED11 / SLES11 Security Update : libssh2_org (SUSE-SU-2016:0723-1)

medium Nessus Plugin ID 89923

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

This update for libssh2_org fixes the following issues :

 - Add SHA256 support for DH group exchange (fate#320343, bsc#961964)

 - fix CVE-2016-0787 (bsc#967026)

 - Weakness in diffie-hellman secret key generation lead to much shorter DH groups then needed, which could be used to retrieve server keys.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Software Development Kit 11-SP4 :

zypper in -t patch sdksp4-libssh2_org-12445=1

SUSE Linux Enterprise Server 11-SP4 :

zypper in -t patch slessp4-libssh2_org-12445=1

SUSE Linux Enterprise Desktop 11-SP4 :

zypper in -t patch sledsp4-libssh2_org-12445=1

To bring your system up-to-date, use 'zypper patch'.

See Also

https://bugzilla.suse.com/show_bug.cgi?id=961964

https://bugzilla.suse.com/show_bug.cgi?id=967026

https://www.suse.com/security/cve/CVE-2016-0787/

http://www.nessus.org/u?a52be267

Plugin Details

Severity: Medium

ID: 89923

File Name: suse_SU-2016-0723-1.nasl

Version: 2.10

Type: local

Agent: unix

Published: 3/14/2016

Updated: 1/6/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:11, p-cpe:/a:novell:suse_linux:libssh2

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 3/11/2016

Vulnerability Publication Date: 4/13/2016

Reference Information

CVE: CVE-2016-0787