Vulnerability Description
A vulnerability in Juniper Networks Junos OS, which only affects the release 18.4R2-S5, where a function is inconsistently implemented on Juniper Networks Junos QFX5000 Series and EX4600 Series, and if "storm-control enhanced" is configured, can lead to the enhanced storm control filter group not be installed. It will cause storm control not to work hence allowing an attacker to cause high CPU usage or packet loss issues by sending a large amount of broadcast or unknown unicast packets arriving the device. This issue affects Juniper Networks QFX5100, QFX5110, QFX5120, QFX5200, QFX5210, EX4600, and EX4650, and QFX5100 with QFX 5e Series image installed. QFX5130 and QFX5220 are not affected from this issue. This issue affects Juniper Networks Junos OS 18.4R2-S5 on QFX5000 Series and EX4600 Series. No other product or platform is affected by this vulnerability.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Juniper | Junos | 18.4 |
| Juniper | Ex4600 | - |
| Juniper | Ex4650 | - |
| Juniper | Qfx5100 | - |
| Juniper | Qfx5110 | - |
| Juniper | Qfx5120 | - |
| Juniper | Qfx5200 | - |
| Juniper | Qfx5210 | - |
Related Weaknesses (CWE)
References
- https://kb.juniper.net/JSA11196Vendor Advisory
- https://kb.juniper.net/JSA11196Vendor Advisory
FAQ
What is CVE-2021-0294?
CVE-2021-0294 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A vulnerability in Juniper Networks Junos OS, which only affects the release 18.4R2-S5, where a function is inconsistently implemented on Juniper Networks Junos QFX5000 Series and EX4600 Series, and i...
How severe is CVE-2021-0294?
CVE-2021-0294 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-0294?
Check the references section above for vendor advisories and patch information. Affected products include: Juniper Junos, Juniper Ex4600, Juniper Ex4650, Juniper Qfx5100, Juniper Qfx5110.