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2017-01 Security Bulletin: Junos: RPD crash while processing RIP advertisements (CVE-2017-2303)



Article ID: JSA10772 SECURITY_ADVISORIES Last Updated: 28 Feb 2019Version: 3.0
Product Affected:
This issue can affect any product or platform running Junos OS where RIP is enabled.

Certain RIP advertisements received by the router may cause the RPD daemon to crash. While the RPD daemon restarts after a crash, repeated crashes of RPD daemon can result in an extended denial of service condition.

This issue only affects devices where RIP is enabled.

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-2017-2303.

The following software releases have been updated to resolve this specific issue: Junos OS 12.1X46-D50, 12.1X47-D40, 12.3R12-S4, 12.3R13, 12.3X48-D30, 13.2X51-D40, 13.3R10, 14.1R8, 14.1X53-D35, 14.1X55-D35, 14.2R5, 15.1F6, 15.1R3, 15.1X49-D30, 15.1X49-D40, 15.1X53-D35, 16.1R1, and all subsequent releases.

This issue is being tracked as PR 1129202 and is 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.

There are no known workarounds than can prevent this issue.

It is a good security practice to limit the exploitable attack surface of critical infrastructure networking equipment. Use access lists or firewall filters to limit access to the router only from trusted, administrative networks or hosts.

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:
Modification History:
2017-01-11: Initial release.
2019-02-28: Included 12.3R12-S4 in the Solution as the issue is fixed in 12.3R12-S4 and later S releases.
CVSS Score:
5.9 (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
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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