CVE-2018-0026: Junos OS: Stateless IP firewall filter rules stop working as expected after reboot or upgrade
First published: Wed Jul 11 2018(Updated: )
After Junos OS device reboot or upgrade, the stateless firewall filter configuration may not take effect. This issue can be verified by running the command: user@re0> show interfaces <interface_name> extensive | match filters" CAM destination filters: 0, CAM source filters: 0 Note: when the issue occurs, it does not show the applied firewall filter. The correct output should show the applied firewall filter, for example: user@re0> show interfaces <interface_name> extensive | match filters" CAM destination filters: 0, CAM source filters: 0 Input Filters: FIREWAL_FILTER_NAME-<interface_name> This issue affects firewall filters for every address family. Affected releases are Juniper Networks Junos OS: 15.1R4, 15.1R5, 15.1R6 and SRs based on these MRs. 15.1X8 versions prior to 15.1X8.3.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper JUNOS | =15.1-r4 | |
| Juniper JUNOS | =15.1-r5 | |
| Juniper JUNOS | =15.1-r6 | |
| Juniper JUNOS | =15.1x8 |
Remedy
The following software releases have been updated to resolve this specific issue: 15.1R7, 15.1X8.3 and all subsequent releases.
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Reference Links
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- version/juniper junos/15.1-r6
- version/juniper junos/15.1x8