SUSE SLES12 Security Update : krb5 (SUSE-SU-2018:1425-1)

medium Nessus Plugin ID 110184

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Synopsis

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

Description

This update for krb5 provides the following fixes: Security issues fixed :

- CVE-2017-7562: Improper validation of certificate EKU and SAN could lead to authentication bypass.
(bsc#1055851) Non-security issues fixed :

- Set 'rdns' and 'dns_canonicalize_hostname' to false in krb5.conf in order to improve client security in handling service principle names. (bsc#1054028)

- Fix a GSS failure in legacy applications by not indicating deprecated GSS mechanisms in gss_indicate_mech() list. (bsc#1081725)

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 the SUSE recommended installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server for SAP 12-SP1:zypper in -t patch SUSE-SLE-SAP-12-SP1-2018-983=1

SUSE Linux Enterprise Server 12-SP1-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-SP1-2018-983=1

SUSE Linux Enterprise Server 12-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-2018-983=1

Plugin Details

Severity: Medium

ID: 110184

File Name: suse_SU-2018-1425-1.nasl

Version: 1.8

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 5/29/2018

Updated: 9/30/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2017-7562

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:krb5-plugin-kdb-ldap, p-cpe:/a:novell:suse_linux:krb5-server-debuginfo, p-cpe:/a:novell:suse_linux:krb5-plugin-kdb-ldap-debuginfo, p-cpe:/a:novell:suse_linux:krb5-plugin-preauth-pkinit, p-cpe:/a:novell:suse_linux:krb5-client-debuginfo, p-cpe:/a:novell:suse_linux:krb5-plugin-preauth-pkinit-debuginfo, p-cpe:/a:novell:suse_linux:krb5-debugsource, p-cpe:/a:novell:suse_linux:krb5-plugin-preauth-otp, p-cpe:/a:novell:suse_linux:krb5-server, p-cpe:/a:novell:suse_linux:krb5-doc, p-cpe:/a:novell:suse_linux:krb5-debuginfo, p-cpe:/a:novell:suse_linux:krb5-plugin-preauth-otp-debuginfo, p-cpe:/a:novell:suse_linux:krb5, p-cpe:/a:novell:suse_linux:krb5-client

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: 5/25/2018

Vulnerability Publication Date: 7/26/2018

Reference Information

CVE: CVE-2017-7562

Detections

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