SUSE SLED12 / SLES12 Security Update : krb5 (SUSE-SU-2018:0846-1)

medium Nessus Plugin ID 108747
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VPR Score: 3.4

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-2018-5730: DN container check bypass by supplying special crafted data (bsc#1083927).

- CVE-2018-5729: NULL pointer dereference in kadmind or DN container check bypass by supplying special crafted data (bsc#1083926). Non-security issues fixed :

- Make it possible for legacy applications (e.g. SAP Netweaver) to remain compatible with newer Kerberos.
System administrators who are experiencing this kind of compatibility issues may set the environment variable GSSAPI_ASSUME_MECH_MATCH to a non-empty value, and make sure the environment variable is visible and effective to the application startup script. (bsc#1057662)

- 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 Software Development Kit 12-SP3:zypper in -t patch SUSE-SLE-SDK-12-SP3-2018-567=1

SUSE Linux Enterprise Software Development Kit 12-SP2:zypper in -t patch SUSE-SLE-SDK-12-SP2-2018-567=1

SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t patch SUSE-SLE-RPI-12-SP2-2018-567=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-567=1

SUSE Linux Enterprise Server 12-SP2:zypper in -t patch SUSE-SLE-SERVER-12-SP2-2018-567=1

SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2018-567=1

SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2018-567=1

SUSE CaaS Platform ALL :

To install this update, use the SUSE CaaS Platform Velum dashboard. It will inform you if it detects new updates and let you then trigger updating of the complete cluster in a controlled way.

OpenStack Cloud Magnum Orchestration 7:zypper in -t patch SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2018-567=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1057662

https://bugzilla.suse.com/show_bug.cgi?id=1081725

https://bugzilla.suse.com/show_bug.cgi?id=1083926

https://bugzilla.suse.com/show_bug.cgi?id=1083927

https://www.suse.com/security/cve/CVE-2018-5729/

https://www.suse.com/security/cve/CVE-2018-5730/

http://www.nessus.org/u?93893ad7

Plugin Details

Severity: Medium

ID: 108747

File Name: suse_SU-2018-0846-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 3/30/2018

Updated: 1/13/2021

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 3.4

CVSS v2.0

Base Score: 6.5

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

CVSS v3.0

Base Score: 4.7

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

Vulnerability Information

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

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

Patch Publication Date: 3/29/2018

Vulnerability Publication Date: 3/6/2018

Reference Information

CVE: CVE-2018-5729, CVE-2018-5730