Scientific Linux Security Update : openssh on SL7.x x86_64

High Nessus Plugin ID 90081

Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

It was discovered that the OpenSSH server did not sanitize data received in requests to enable X11 forwarding. An authenticated client with restricted SSH access could possibly use this flaw to bypass intended restrictions. (CVE-2016-3115)

An access flaw was discovered in OpenSSH; the OpenSSH client did not correctly handle failures to generate authentication cookies for untrusted X11 forwarding. A malicious or compromised remote X application could possibly use this flaw to establish a trusted connection to the local X server, even if only untrusted X11 forwarding was requested. (CVE-2016-1908)

After installing this update, the OpenSSH server daemon (sshd) will be restarted automatically.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?6a756ca6

Plugin Details

Severity: High

ID: 90081

File Name: sl_20160321_openssh_on_SL7_x.nasl

Version: 2.7

Type: local

Agent: unix

Published: 2016/03/22

Updated: 2019/04/11

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.9

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

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2016/03/21

Reference Information

CVE: CVE-2016-1908, CVE-2016-3115