SUSE SLES12 Security Update : Recommended update for tboot (SUSE-SU-2017:3090-1)

high Nessus Plugin ID 104782

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Synopsis

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

Description

This update for tboot fixes the following issues: Security issue fixed :

- CVE-2017-16837: Certain function pointers in Trusted Boot (tboot) through 1.9.6 are notvalidated and can cause arbitrary code execution, which allows local users tooverwrite dynamic PCRs of Trusted Platform Module (TPM) by h (bsc#1068390) Bug fixes :

- Fixed failed trusted boot on some systems like Intel Xeon 'Purley 8s' processors. The following error message showed: 'TBOOT: wait-for-sipi loop timed-out'. Booting continued but 'TXT measured launch' was wrongly reported as FALSE. (bsc#1057555)

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-SP3:zypper in -t patch SUSE-SLE-SERVER-12-SP3-2017-1901=1

SUSE Linux Enterprise Server 12-SP2:zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-1901=1

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

Plugin Details

Severity: High

ID: 104782

File Name: suse_SU-2017-3090-1.nasl

Version: 3.8

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 11/27/2017

Updated: 1/6/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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:tboot-debugsource, p-cpe:/a:novell:suse_linux:tboot-debuginfo, p-cpe:/a:novell:suse_linux:tboot

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: 11/24/2017

Vulnerability Publication Date: 11/16/2017

Reference Information

CVE: CVE-2017-16837

Detections

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