SUSE SLED12 / SLES12 Security Update : strongswan (SUSE-SU-2015:0281-1)

medium Nessus Plugin ID 83680

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Synopsis

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

Description

This strongswan update fixes the following security and non security issues.

- Disallow brainpool elliptic curve groups in fips mode (bnc#856322).

- Applied an upstream fix for a denial-of-service vulnerability, which can be triggered by an IKEv2 Key Exchange payload, that contains the Diffie-Hellman group 1025 (bsc#910491,CVE-2014-9221).

- Adjusted whilelist of approved algorithms in fips mode (bsc#856322).

- Updated strongswan-hmac package description (bsc#856322).

- Disabled explicit gpg validation; osc source_validator does it.

- Guarded fipscheck and hmac package in the spec file for >13.1.

- Added generation of fips hmac hash files using fipshmac utility and a _fipscheck script to verify binaries/libraries/plugings shipped in the strongswan-hmac package. With enabled fips in the kernel, the ipsec script will call it before any action or in a enforced/manual 'ipsec _fipscheck' call. Added config file to load openssl and kernel af-alg plugins, but not all the other modules which provide further/alternative algs. Applied a filter disallowing non-approved algorithms in fips mode.
(fate#316931,bnc#856322).

- Fixed file list in the optional (disabled) strongswan-test package.

- Fixed build of the strongswan built-in integrity checksum library and enabled building it only on architectures tested to work.

- Fix to use bug number 897048 instead 856322 in last changes entry.

- Applied an upstream patch reverting to store algorithms in the registration order again as ordering them by identifier caused weaker algorithms to be proposed first by default (bsc#897512).

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 Server 12 :

zypper in -t patch SUSE-SLE-SERVER-12-2015-71=1

SUSE Linux Enterprise Desktop 12 :

zypper in -t patch SUSE-SLE-DESKTOP-12-2015-71=1

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

Plugin Details

Severity: Medium

ID: 83680

File Name: suse_SU-2015-0281-1.nasl

Version: 2.10

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 5/20/2015

Updated: 1/6/2021

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:strongswan, p-cpe:/a:novell:suse_linux:strongswan-debugsource, p-cpe:/a:novell:suse_linux:strongswan-hmac, p-cpe:/a:novell:suse_linux:strongswan-ipsec, p-cpe:/a:novell:suse_linux:strongswan-ipsec-debuginfo, p-cpe:/a:novell:suse_linux:strongswan-libs0, p-cpe:/a:novell:suse_linux:strongswan-libs0-debuginfo, cpe:/o:novell:suse_linux:12

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: 1/28/2015

Vulnerability Publication Date: 1/7/2015

Reference Information

CVE: CVE-2014-9221

BID: 71894

Detections

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