Resource exhaustion in Juniper Junos
CVE-2019-0046
A vulnerability in the pfe-chassisd Chassis Manager (CMLC) daemon of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) to the EX4300 when specific valid broadcast packets create a broadcast storm condition when received on the me0 interface of the EX4300 Series device. A reboot of the device is required to restore service. Continued receipt of these valid broadcast packets will create a sustained Denial of Service (DoS) against the device. Affected releases are Juniper Networks Junos OS: 16.1 versions above and including 16.1R1 prior to 16.1R7-S5; 17.1 versions prior to 17.1R3; 17.2 versions prior to 17.2R3; 17.3 versions prior to 17.3R3-S2; 17.4 versions prior to 17.4R2; 18.1 versions prior to 18.1R3; 18.2 versions prior to 18.2R2.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.007 (48.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Juniper Junos — versions 16.1, 17.1, 17.2
- Juniper Networks Junos Os — versions 16.1 versions above and including 16.1R1 prior to 16.1R7-S5, 17.1 versions prior to 17.1R3, 17.2 versions prior to 17.2R3
Weakness classification (CWE)
References
- sirt@juniper.net (x_refsource_CONFIRM, Patch, Vendor Advisory)
- sirt@juniper.net (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2019-0046?
- CVE-2019-0046 is a medium-severity vulnerability in Juniper Junos, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2019-07-11.
- How severe is CVE-2019-0046?
- Medium severity. CVSS v3 base score is 6.5 out of 10.