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2014-10 Security Bulletin: Junos: Receipt of malformed RSVP packet may lead to denial of service (CVE-2014-6378)



Article ID: JSA10652 SECURITY_ADVISORIES Last Updated: 16 Oct 2014Version: 3.0
Product Affected:
This issue can affect any product or platform running Junos OS with support for RSVP enabled.
Receipt of a crafted or malformed RSVP packet may cause the rpd (routing protocol daemon) to hang or crash. When rpd is unavailable, routing updates cannot be processed which can lead to an extended network outage.

This issue only occurs during processing of RSVP PATH messages. If RSVP is not enabled on an interface, then the issue cannot be triggered via that interface.  Additionally, SRX Data Center services gateways are not susceptible as the platform does not allow packet mode processing, which is required on the SRX Series for RSVP over MPLS.

This issue was found during internal product security testing.

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

No other Juniper Networks products or platforms are affected by this issue.

This issue has been assigned CVE-2014-6378.
The following software releases have been updated to resolve this specific issue: Junos OS 11.4R12-S4, 12.1X44-D35, 12.1X45-D30, 12.1X46-D25, 12.1X47-D10, 12.2R9, 12.2X50-D70, 12.3R7, 13.1R4-S3, 13.1X49-D55, 13.1X50-D30, 13.2R5, 13.2X50-D20, 13.2X51-D26, 13.2X51-D30, 13.2X52-D15, 13.3R3, 14.1R1, and all subsequent releases.

This issue is being tracked via PRs 954509 and 954508 which are visible on the Customer Support website.

KB16765 - "In which releases are vulnerabilities fixed?" describes which release vulnerabilities are fixed as per our End of Engineering and End of Life support policies.
  • Only enable RSVP on specific trusted interfaces as required for MPLS.
  • Use access lists or firewall filters to limit access to the router via MPLS TE RSVP only from trusted nodes.
How to obtain fixed software:

Security vulnerabilities in Junos are fixed in the next available Maintenance Release of each supported Junos version. In some cases, a Maintenance Release is not planned to be available in an appropriate time-frame. For these cases, Service Releases are made available in order to be more timely. Security Advisory and Security Notices will indicate which Maintenance and Service Releases contain fixes for the issues described. Upon request to JTAC, customers will be provided download instructions for a Service Release. Although Juniper does not provide formal Release Note documentation for a Service Release, a list of "PRs fixed" can be provided on request.  

Modification History:
2014-10-08: Initial release
2014-10-15: SRX-HE not affected

CVSS Score:
7.8 (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Severity Level:
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."

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