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SUSE SLED15 / SLES15 Security Update : openssh (SUSE-SU-2019:0496-1)

medium Nessus Plugin ID 122473

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Synopsis

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

Description

This update for openssh fixes the following issues :

Security vulnerabilities addressed :

CVE-2019-6109: Fixed an character encoding issue in the progress display of the scp client that could be used to manipulate client output, allowing for spoofing during file transfers (bsc#1121816)

CVE-2019-6111: Properly validate object names received by the scp client to prevent arbitrary file overwrites when interacting with a malicious SSH server (bsc#1121821)

Other bug fixes and changes: Handle brace expansion in scp when checking that filenames sent by the server side match what the client requested (bsc#1125687)

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 Module for Server Applications 15:zypper in -t patch SUSE-SLE-Module-Server-Applications-15-2019-496=1

SUSE Linux Enterprise Module for Open Buildservice Development Tools 15:zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-2019-496=1

SUSE Linux Enterprise Module for Desktop Applications 15:zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-2019-496=1

SUSE Linux Enterprise Module for Basesystem 15:zypper in -t patch SUSE-SLE-Module-Basesystem-15-2019-496=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1121816

https://bugzilla.suse.com/show_bug.cgi?id=1121821

https://bugzilla.suse.com/show_bug.cgi?id=1125687

https://www.suse.com/security/cve/CVE-2019-6109/

https://www.suse.com/security/cve/CVE-2019-6111/

http://www.nessus.org/u?60f8713c

Plugin Details

Severity: Medium

ID: 122473

File Name: suse_SU-2019-0496-1.nasl

Version: 1.6

Type: local

Agent: unix

Published: 2/27/2019

Updated: 5/23/2022

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: 6.1

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.5

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

CVSS Score Source: CVE-2019-6111

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 6.1

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

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

CVSS Score Source: CVE-2019-6109

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:openssh-helpers, p-cpe:/a:novell:suse_linux:openssh-debugsource, p-cpe:/a:novell:suse_linux:openssh-debuginfo, p-cpe:/a:novell:suse_linux:openssh-askpass-gnome-debuginfo, p-cpe:/a:novell:suse_linux:openssh, p-cpe:/a:novell:suse_linux:openssh-fips, p-cpe:/a:novell:suse_linux:openssh-cavs, p-cpe:/a:novell:suse_linux:openssh-helpers-debuginfo, p-cpe:/a:novell:suse_linux:openssh-askpass-gnome, p-cpe:/a:novell:suse_linux:openssh-cavs-debuginfo, cpe:/o:novell:suse_linux:15

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/26/2019

Vulnerability Publication Date: 1/31/2019

Reference Information

CVE: CVE-2019-6109, CVE-2019-6111