CVE-2019-0046: Junos OS: EX4300 Series: Denial of Service upon receipt of large number of specific valid packets on management interface.
First published: Thu Jul 11 2019(Updated: )
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.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper JUNOS | =16.1 | |
| Juniper JUNOS | =16.1-r1 | |
| Juniper JUNOS | =16.1-r2 | |
| Juniper JUNOS | =16.1-r3 | |
| Juniper JUNOS | =16.1-r3-s10 | |
| Juniper JUNOS | =16.1-r3-s11 | |
| Juniper JUNOS | =16.1-r4 | |
| Juniper JUNOS | =16.1-r5 | |
| Juniper JUNOS | =16.1-r6 | |
| Juniper JUNOS | =16.1-r6-s6 | |
| Juniper JUNOS | =17.1 | |
| Juniper JUNOS | =17.1-r1 | |
| Juniper JUNOS | =17.1-r2-s1 | |
| Juniper JUNOS | =17.1-r2-s10 | |
| Juniper JUNOS | =17.1-r2-s2 | |
| Juniper JUNOS | =17.1-r2-s3 | |
| Juniper JUNOS | =17.1-r2-s4 | |
| Juniper JUNOS | =17.1-r2-s5 | |
| Juniper JUNOS | =17.1-r2-s6 | |
| Juniper JUNOS | =17.1-r2-s7 | |
| Juniper JUNOS | =17.2 | |
| Juniper JUNOS | =17.2-r1 | |
| Juniper JUNOS | =17.2-r1-s2 | |
| Juniper JUNOS | =17.2-r1-s4 | |
| Juniper JUNOS | =17.2-r1-s7 | |
| Juniper JUNOS | =17.2-r2 | |
| Juniper JUNOS | =17.2-r2-s6 | |
| Juniper JUNOS | =17.2-r2-s7 | |
| Juniper JUNOS | =17.3 | |
| Juniper JUNOS | =17.3-r1 | |
| Juniper JUNOS | =17.3-r2 | |
| Juniper JUNOS | =17.3-r2-s1 | |
| Juniper JUNOS | =17.3-r2-s2 | |
| Juniper JUNOS | =17.3-r3-s1 | |
| Juniper JUNOS | =17.4 | |
| Juniper JUNOS | =17.4-r1 | |
| Juniper JUNOS | =17.4-r1-s1 | |
| Juniper JUNOS | =17.4-r1-s2 | |
| Juniper JUNOS | =17.4-r1-s4 | |
| Juniper JUNOS | =17.4-r1-s6 | |
| Juniper JUNOS | =17.4-r1-s7 | |
| Juniper JUNOS | =17.4-r2 | |
| Juniper JUNOS | =17.4-r2-s1 | |
| Juniper JUNOS | =17.4-r2-s2 | |
| Juniper JUNOS | =17.4-r2-s3 | |
| Juniper JUNOS | =17.4-r2-s4 | |
| Juniper JUNOS | =18.1 | |
| Juniper JUNOS | =18.1-r1 | |
| Juniper JUNOS | =18.1-r2 | |
| Juniper JUNOS | =18.1-r2-s1 | |
| Juniper JUNOS | =18.1-r2-s2 | |
| Juniper JUNOS | =18.1-r3-s2 | |
| Juniper JUNOS | =18.1-r3-s3 | |
| Juniper JUNOS | =18.1-r3-s4 | |
| Juniper JUNOS | =18.1-r3-s5 | |
| Juniper JUNOS | =18.2 | |
| Juniper JUNOS | =18.2-r2-s1 | |
| Juniper JUNOS | =18.2-r2-s2 | |
| Juniper JUNOS | =18.2-r2-s3 | |
| Juniper JUNOS | =18.2-r2-s4 |
Remedy
The following software releases have been updated to resolve this specific issue: 16.1R7-S5, 17.1R3, 17.2R3, 17.3R3-S2, 17.4R2, 18.1R3, 18.2R2, 18.3R1, and all subsequent releases.
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- version/juniper junos/17.1-r2-s10
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- version/juniper junos/17.1-r2-s3
- version/juniper junos/17.1-r2-s4
- version/juniper junos/17.1-r2-s5
- version/juniper junos/17.1-r2-s6
- version/juniper junos/17.1-r2-s7
- version/juniper junos/17.2
- version/juniper junos/17.2-r1
- version/juniper junos/17.2-r1-s2
- version/juniper junos/17.2-r1-s4
- version/juniper junos/17.2-r1-s7
- version/juniper junos/17.2-r2
- version/juniper junos/17.2-r2-s6
- version/juniper junos/17.2-r2-s7
- version/juniper junos/17.3
- version/juniper junos/17.3-r1
- version/juniper junos/17.3-r2
- version/juniper junos/17.3-r2-s1
- version/juniper junos/17.3-r2-s2
- version/juniper junos/17.3-r3-s1
- version/juniper junos/17.4
- version/juniper junos/17.4-r1
- version/juniper junos/17.4-r1-s1
- version/juniper junos/17.4-r1-s2
- version/juniper junos/17.4-r1-s4
- version/juniper junos/17.4-r1-s6
- version/juniper junos/17.4-r1-s7
- version/juniper junos/17.4-r2
- version/juniper junos/17.4-r2-s1
- version/juniper junos/17.4-r2-s2
- version/juniper junos/17.4-r2-s3
- version/juniper junos/17.4-r2-s4
- version/juniper junos/18.1
- version/juniper junos/18.1-r1
- version/juniper junos/18.1-r2
- version/juniper junos/18.1-r2-s1
- version/juniper junos/18.1-r2-s2
- version/juniper junos/18.1-r3-s2
- version/juniper junos/18.1-r3-s3
- version/juniper junos/18.1-r3-s4
- version/juniper junos/18.1-r3-s5
- version/juniper junos/18.2
- version/juniper junos/18.2-r2-s1
- version/juniper junos/18.2-r2-s2
- version/juniper junos/18.2-r2-s3
- version/juniper junos/18.2-r2-s4