Junos OS: flowd DoS (JSA10963)

Medium Nessus Plugin ID 130466

Synopsis

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

Description

According to its self-reported version number, the remote Juniper Junos device is affected by a denial of service (DoS) vulnerability in the flowd process on SRX 5000 devices when 'set security zones security-zone <zone> tcp-rst' is configured. An unauthenticated, remote attacker can send a crafted TCP packet to crash the flowd process and trigger a new session. Repeated crashes of the flowd daemon can result in an extended DoS condition.

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 JSA10963.

See Also

https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10963

Plugin Details

Severity: Medium

ID: 130466

File Name: juniper_jsa10963.nasl

Version: 1.2

Type: combined

Published: 2019/11/04

Updated: 2019/11/04

Dependencies: 55932

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2019-0064

CVSS v2.0

Base Score: 4.3

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

CVSS v3.0

Base Score: 7.5

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

Vulnerability Information

CPE: cpe:/o:juniper:junos

Required KB Items: Host/Juniper/JUNOS/Version, Host/Juniper/model

Patch Publication Date: 2019/10/09

Vulnerability Publication Date: 2019/10/09

Reference Information

CVE: CVE-2019-0064

JSA: JSA10963

IAVA: 2019-A-0388