CVE-2018-0016
Junos OS: Kernel crash upon receipt of crafted CLNP datagrams
- Published
- Updated
- Reserved
- Assigned by
- juniper
Description
Receipt of a specially crafted Connectionless Network Protocol (CLNP) datagram destined to an interface of a Junos OS device may result in a kernel crash or lead to remote code execution. Devices are only vulnerable to the specially crafted CLNP datagram if 'clns-routing' or ES-IS is explicitly configured. Devices with without CLNS enabled are not vulnerable to this issue. Devices with IS-IS configured on the interface are not vulnerable to this issue unless CLNS routing is also enabled. This issue only affects devices running Junos OS 15.1. Affected releases are Juniper Networks Junos OS: 15.1 versions prior to 15.1F5-S3, 15.1F6-S8, 15.1F7, 15.1R5; 15.1X49 versions prior to 15.1X49-D60; 15.1X53 versions prior to 15.1X53-D66, 15.1X53-D233, 15.1X53-D471. Earlier releases are unaffected by this vulnerability, and the issue has been resolved in Junos OS 16.1R1 and all subsequent releases.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| juniperCNA (assigner) | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 4.1% · top 9.3% of all CVEs (4 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
- Denial of Service
Affected products
- affected 15.1 – < 15.1F5-S3, 15.1F6-S8, 15.1F7, 15.1R5
- affected 15.1X49 – < 15.1X49-D60
- affected 15.1X53 – < 15.1X53-D66, 15.1X53-D233, 15.1X53-D471
What to do
Solution: The following software releases have been updated to resolve this specific issue: 15.1F5-S3, 15.1F6-S8, 15.1F7, 15.1R5, 15.1X49-D60, 15.1X53-D66, 15.1X53-D233, 15.1X53-D471, 16.1R1, and all subsequent releases.
Workaround: Use access lists or firewall filters to limit access to the device via CLNP only from trusted hosts.
Exploitation: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
References (3)
- 103747 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1040784 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://kb.juniper.net/JSA10844 (opens in a new tab)x_refsource_CONFIRMx_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-2018-0016)Record last updated .