Support Support Downloads Knowledge Base Case Manager My Juniper Community

Knowledge Base

Search our Knowledge Base sites to find answers to your questions.

Ask All Knowledge Base Sites All Knowledge Base Sites JunosE Defect (KA)Knowledge BaseSecurity AdvisoriesTechnical BulletinsTechnotes Sign in to display secure content and recently viewed articles

2019-04 Security Bulletin: Junos OS: BGP packets can trigger rpd crash when BGP tracing is enabled. (CVE-2019-0019)

0

0

Article ID: JSA10931 SECURITY_ADVISORIES Last Updated: 10 Apr 2019Version: 1.0
Product Affected:
This issue affects Junos OS 16.1, 16.2, 17.1, 17.2, 17.3, 17.4, 18.1, 18.2, 18.2X75, 18.3, 18.4.
Problem:

When BGP tracing is enabled an incoming BGP message may cause the Junos OS routing protocol daemon (rpd) process to crash and restart. While rpd restarts after a crash, repeated crashes can result in an extended DoS condition.

Affected releases are Juniper Networks Junos OS:

  • 16.1 versions prior to 16.1R7-S4, 16.1R7-S5;
  • 16.2 versions prior to 16.2R2-S9, 16.2R3;
  • 17.1 versions prior to 17.1R3;
  • 17.2 versions prior to 17.2R3-S1;
  • 17.3 versions prior to 17.3R3-S3, 17.3R3-S4, 17.3R4;
  • 17.4 versions prior to 17.4R1-S7, 17.4R2-S3, 17.4R2-S4, 17.4R3;
  • 18.1 versions prior to 18.1R2-S4, 18.1R3-S4, 18.1R4;
  • 18.2 versions prior to 18.2R2-S2, 18.2R2-S3, 18.2R3;
  • 18.2X75 versions prior to 18.2X75-D40;
  • 18.3 versions prior to 18.3R1-S3, 18.3R2;
  • 18.4 versions prior to 18.4R1-S2, 18.4R2.

This issue does not affect Junos releases prior to 16.1R1.

This issue requires BGP tracing to be enabled.

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

This issue was found during internal product security testing or research.

This issue has been assigned CVE-2019-0019.

Solution:

The following software releases have been updated to resolve this specific issue: 16.1R7-S4, 16.1R7-S5, 16.2R2-S9, 16.2R3, 17.1R3, 17.2R3-S1, 17.3R3-S3, 17.3R3-S4, 17.3R4, 17.4R1-S7, 17.4R2-S3, 17.4R2-S4, 17.4R3, 18.1R2-S4, 18.1R3-S4, 18.1R4, 18.2R2-S2, 18.2R2-S3, 18.2R3, 18.2X75-D40, 18.3R1-S3, 18.3R2, 18.4R1-S2, 18.4R2, 19.1R1, and all subsequent releases.

This issue is being tracked as PR 1399141 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).

Workaround:

The issue can be mitigated by disabling BGP tracing.

Use authentication for BGP (tcp-md5, ipsec, etc.) to mitigate the issue.

Implementation:
Software Releases, patches and updates are available at https://www.juniper.net/support/downloads/.
Modification History:
  • 2019-04-10: Initial Publication.

 

CVSS Score:
7.5 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Severity Level:
High
Severity Assessment:
Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories."

Related Links

Affected Products Browse the Knowledge Base for more articles related to these product categories. Select a category to begin.

Getting Up and Running with Junos

Getting Up and Running with Junos Security Alerts and Vulnerabilities Product Alerts and Software Release Notices Problem Report (PR) Search Tool EOL Notices and Bulletins JTAC User Guide Customer Care User Guide Pathfinder SRX High Availability Configurator SRX VPN Configurator Training Courses and Videos End User Licence Agreement Global Search