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             AUSCERT External Security Bulletin Redistribution

  JSA10946 - 2019-07 Security Bulletin: SRX Series: srxpfe process crash
     while JSF/UTM module parses specific HTTP packets (CVE-2019-0052)
                               12 July 2019


        AusCERT Security Bulletin Summary

Product:           Juniper SRX Series
Publisher:         Juniper Networks
Operating System:  Juniper
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-0052  

Original Bulletin: 

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2019-07 Security Bulletin: SRX Series: srxpfe process crash while JSF/UTM 
module parses specific HTTP packets (CVE-2019-0052)

Article ID:   JSA10946

Last Updated: 10 Jul 2019

Version:      1.0

Product Affected:
This issue affects SRX Series platforms running Junos OS.

The srxpfe process may crash on SRX Series services gateways when the UTM
module processes a specific fragmented HTTP packet. The packet is
misinterpreted as a regular TCP packet which causes the processor to crash.

This issue affects all SRX Series platforms that support URL-Filtering and have
web-filtering enabled.

Affected releases are Juniper Networks Junos OS:

  o 12.3X48 versions prior to 12.3X48-D85 on SRX Series;
  o 15.1X49 versions prior to 15.1X49-D181, 15.1X49-D190 on SRX Series;
  o 17.3 versions on SRX Series;
  o 17.4 versions prior to 17.4R1-S8, 17.4R2-S5, 17.4R3 on SRX Series;
  o 18.1 versions prior to 18.1R3-S6 on SRX Series;
  o 18.2 versions prior to 18.2R2-S1, 18.2R3 on SRX Series;
  o 18.3 versions prior to 18.3R1-S2, 18.3R2 on SRX Series;
  o 18.4 versions prior to 18.4R1-S1, 18.4R2 on SRX Series.

The following SRX Series services gateway web-filtering configuration is

security {
utm {
default-configuration {
web-filtering {
feature-profile {
web-filtering {

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

This issue was seen during production usage.

This issue has been assigned CVE-2019-0052 .


The following software releases have been updated to resolve this specific
issue: 12.3X48-D85, 12.3X48-D90, 15.1X49-D181, 15.1X49-D190, 17.4R1-S8,
17.4R2-S5, 17.4R3, 18.1R3-S6, 18.2R2-S1, 18.2R3, 18.3R1-S2, 18.3R2, 18.4R1-S1,
18.4R2, 19.1R1, 19.2R1, and all subsequent releases.

This issue is being tracked as PR 1406403 which is visible on the Customer
Support website.

Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of
Engineering (EOE) or End of Life (EOL).


This issue can be mitigated by enabling HTTP reassembly in the web-filtering

set security utm default-configuration web-filtering http-reassemble
Software Releases, patches and updates are available at https://www.juniper.net
/support/downloads/ .

Modification History:

  o 2019-07-10: Initial Publication

Related Links:

  o KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin
    Publication Process

  o KB16765: In which releases are vulnerabilities fixed

  o KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security

  o Report a Security Vulnerability - How to Contact the Juniper Networks
    Security Incident Response Team

  o CVE-2019-0052 at cve.mitre.org

CVSS Score:
7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Risk Level:

Risk Assessment:
Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common
Vulnerability Scoring System (CVSS) and Juniper's Security Advisories."

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