openSUSE Security Update : openssh (openSUSE-2017-184)

high Nessus Plugin ID 96919

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Synopsis

The remote openSUSE host is missing a security update.

Description

This update for openssh fixes several issues.

These security issues were fixed :

- CVE-2016-8858: The kex_input_kexinit function in kex.c allowed remote attackers to cause a denial of service (memory consumption) by sending many duplicate KEXINIT requests (bsc#1005480).

- CVE-2016-10012: The shared memory manager (associated with pre-authentication compression) did not ensure that a bounds check is enforced by all compilers, which might allowed local users to gain privileges by leveraging access to a sandboxed privilege-separation process, related to the m_zback and m_zlib data structures (bsc#1016370).

- CVE-2016-10009: Untrusted search path vulnerability in ssh-agent.c allowed remote attackers to execute arbitrary local PKCS#11 modules by leveraging control over a forwarded agent-socket (bsc#1016366).

- CVE-2016-10010: When forwarding unix domain sockets with privilege separation disabled, the resulting sockets have be created as 'root' instead of the authenticated user. Forwarding unix domain sockets without privilege separation enabled is now rejected.

- CVE-2016-10011: authfile.c in sshd did not properly consider the effects of realloc on buffer contents, which might allowed local users to obtain sensitive private-key information by leveraging access to a privilege-separated child process (bsc#1016369).

These non-security issues were fixed :

- Adjusted suggested command for removing conflicting server keys from the known_hosts file (bsc#1006221)

- Properly verify CIDR masks in configuration (bsc#1005893 bsc#1021626)

This update was imported from the SUSE:SLE-12-SP2:Update update project.

Solution

Update the affected openssh packages.

Plugin Details

Severity: High

ID: 96919

File Name: openSUSE-2017-184.nasl

Version: 3.4

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 2/1/2017

Updated: 1/19/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:opensuse:openssh-askpass-gnome, p-cpe:/a:novell:opensuse:openssh-askpass-gnome-debuginfo, p-cpe:/a:novell:opensuse:openssh-fips, cpe:/o:novell:opensuse:42.2, p-cpe:/a:novell:opensuse:openssh, p-cpe:/a:novell:opensuse:openssh-helpers-debuginfo, p-cpe:/a:novell:opensuse:openssh-cavs, p-cpe:/a:novell:opensuse:openssh-debuginfo, p-cpe:/a:novell:opensuse:openssh-debugsource, p-cpe:/a:novell:opensuse:openssh-helpers

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/31/2017

Reference Information

CVE: CVE-2016-10009, CVE-2016-10010, CVE-2016-10011, CVE-2016-10012, CVE-2016-8858

Detections

Analytics