Juniper Junos OS Vulnerability (JSA11178)

medium Nessus Plugin ID 151630

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA11178 advisory.

- In Juniper Networks Junos OS there are various cases in the IPv6 socket code where the protocol control block's state flags are modified during a syscall, but are not restored if the operation fails. This can leave the control block in an inconsistent state. The protocol control block is a structure that maintains the Network Layer state for various sockets. There are various state flags that must be properly maintained to keep the structure consistent. Due to improper maintenance of the IPv6 protocol control block flags through various failure paths, an unprivileged authenticated local user may be able to cause a NULL pointer dereference causing the kernel to crash allowing an attacker to cause a Denial of Service (DoS) condition. (CVE-2018-6925)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Apply the relevant Junos software release referenced in Juniper advisory JSA11178

Plugin Details

Severity: Medium

ID: 151630

File Name: juniper_jsa11178.nasl

Version: 1.2

Type: combined

Family: Junos Local Security Checks

Published: 7/14/2021

Updated: 7/14/2021

Supported Sensors: Nessus

Risk Information

CVSS v2

Risk Factor: Low

Base Score: 2.1

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

CVSS Score Source: CVE-2018-6925

CVSS v3

Risk Factor: Medium

Base Score: 5.5

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

Vulnerability Information

CPE: cpe:/o:juniper:junos

Required KB Items: Host/Juniper/JUNOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 7/14/2021

Vulnerability Publication Date: 7/14/2021

Reference Information

JSA: JSA11178

Detections

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