CVE-2018-0027
Junos OS: Receipt of malformed RSVP packet may lead to RPD denial of service
- Published
- Updated
- Reserved
- Assigned by
- juniper
Description
Receipt of a crafted or malformed RSVP PATH message may cause the routing protocol daemon (RPD) to hang or crash. When RPD is unavailable, routing updates cannot be processed which can lead to an extended network outage. If RSVP is not enabled on an interface, then the issue cannot be triggered via that interface. This issue only affects Juniper Networks Junos OS 16.1 versions prior to 16.1R3. This issue does not affect Junos releases prior to 16.1R1.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| juniperCNA (assigner) | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.0 | Medium5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 2.4% · top 16% of all CVEs (5 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- denial of service
- CWE-20 (opens in a new tab)All about CWE-20 and its CVEs
Affected products
- affected 16.1 – < 16.1R3
- unaffected all – < 16.1R1
What to do
Solution: The following software releases have been updated to resolve this specific issue: 16.1R3, 16.2R1, and all subsequent releases.
Workaround: Only enable RSVP on specific trusted interfaces as required for MPLS.
Exploitation: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
References (3)
- https://kb.juniper.net/JSA10861 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1041318 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 104721 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-0027)Record last updated .