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SUSE SLES12 Security Update : openssh (SUSE-SU-2019:0941-1)

medium Nessus Plugin ID 124057

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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 issues fixed: Fixed two race conditions in sshd relating to SIGHUP (bsc#1119183).

Returned proper reason for port forwarding failures (bsc#1090671).

Fixed SSHD termination of multichannel sessions with non-root users (bsc#1115550).

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-SP1-2019-941=1

SUSE Linux Enterprise Server 12-SP1-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-SP1-2019-941=1

SUSE Linux Enterprise Server 12-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-2019-941=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1090671

https://bugzilla.suse.com/show_bug.cgi?id=1115550

https://bugzilla.suse.com/show_bug.cgi?id=1119183

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

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

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

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

http://www.nessus.org/u?acfdd1b5

Plugin Details

Severity: Medium

ID: 124057

File Name: suse_SU-2019-0941-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 4/15/2019

Updated: 5/20/2022

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

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, p-cpe:/a:novell:suse_linux:openssh-askpass-gnome, p-cpe:/a:novell:suse_linux:openssh-askpass-gnome-debuginfo, p-cpe:/a:novell:suse_linux:openssh-debuginfo, p-cpe:/a:novell:suse_linux:openssh-debugsource, p-cpe:/a:novell:suse_linux:openssh-fips, p-cpe:/a:novell:suse_linux:openssh-helpers, p-cpe:/a:novell:suse_linux:openssh-helpers-debuginfo, cpe:/o:novell:suse_linux:12

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: 4/12/2019

Vulnerability Publication Date: 1/31/2019

Reference Information

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