CVE-2018-0016

high-risk
Published 2018-04-11

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.

Do I need to act?

!
11.2% chance of exploitation in next 30 days
EPSS score — higher than 89% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (20)

Affected Vendors

Juniper

References (6)

Third Party Advisory http://www.securityfocus.com/bid/103747
Third Party Advisory http://www.securitytracker.com/id/1040784
Mitigation https://kb.juniper.net/JSA10844
Third Party Advisory http://www.securityfocus.com/bid/103747
Third Party Advisory http://www.securitytracker.com/id/1040784
Mitigation https://kb.juniper.net/JSA10844
67
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 11/34 · Low
Exposure 24/34 · High