CVE-2019-0067

Junos OS: Kernel crash (vmcore) upon receipt of a specific link-local IPv6 packet on devices configured with Multi-Chassis Link Aggregation Group (MC-LAG)

Medium · published October 9, 2019

CVSS v3.1
6.5
EPSS
1%
Percentile
43.7
In the wild
Unconfirmed
What it is

Receipt of a specific link-local IPv6 packet destined to the RE may cause the system to crash and restart (vmcore). By continuously sending a specially crafted IPv6 packet, an attacker can repeatedly crash the system causing a prolonged Denial of Service (DoS). This issue affects Juniper Networks Junos OS: 16.1 versions prior to 16.1R6-S2, 16.1R7; 16.2 versions prior to 16.2R2-S10; 17.1 versions prior to 17.1R3. This issue does not affect Juniper Networks Junos OS version 15.1 and prior versions.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00526 · 43.7th percentile
Published
2019-10-09T19:26Z
EPSS history
Timeline
  • 09 OCT 19:26Z
    Junos OS: Kernel crash (vmcore) upon receipt of a specific link-local IPv6 packet on devices configured with Multi-Chassis Link Aggregation Group (MC-LAG)
    cvelistv5