CVE-2018-0016

Junos OS: Kernel crash upon receipt of crafted CLNP datagrams

Critical ยท published April 11, 2018

CVSS v3.0
9.8
EPSS
4%
Percentile
90.6
In the wild
Unconfirmed
What it is

๐Ÿšจ A single crafted CLNP datagram could crash your Junos OS kernel or even allow remote code execution! ๐Ÿ”ฅ Think of it like a malicious delivery person dropping off a bomb disguised as a regular package โ€” unless you have the right security checks in place, your system could be in serious trouble! ๐Ÿ“ฆ๐Ÿ’ฃ If exploited, an attacker could bring your device to a screeching halt, resulting in downtime and potential data loss. Even worse, they could execute arbitrary code, turning your trusted device into a tool for mayhem! This is absolutely devastating for network security!

Put simply

Think of it like a malicious delivery person dropping off a bomb disguised as a regular package โ€” unless you have the right security checks in place, your system could be in serious trouble! ๐Ÿ“ฆ๐Ÿ’ฃ This vulnerability occurs when a specially crafted Connectionless Network Protocol (CLNP) datagram is accepted by a Junos OS device with 'clns-routing' or ES-IS configured, causing a kernel crash or remote code execution.

What to do

If exploited, an attacker could bring your device to a screeching halt, resulting in downtime and potential data loss. Even worse, they could execute arbitrary code, turning your trusted device into a tool for mayhem! This is absolutely devastating for network security! To protect your network, immediately check your devices for 'clns-routing' or ES-IS configurations. If found, upgrade to Junos OS versions 15.1F5-S3, 15.1F6-S8, 15.1F7, 15.1R5, or higher to eliminate the risk. Don't delay, make these changes today! You've got this! With these steps, you'll secure your devices and enhance your defenses! ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS v3.0
9.8 ยท CRITICAL
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.04068 ยท 90.6th percentile
Published
2018-04-11T19:00Z
EPSS history
Timeline
  • 11 APR 19:00Z
    Junos OS: Kernel crash upon receipt of crafted CLNP datagrams
    cvelistv5