Juniper Networks Junos OS uses the 128.0.0.0/2 subnet for internal communications between the RE and PFEs. It was discovered that packets utilizing these IP addresses may egress an QFX5000 Series switch, leaking configuration information such as heartbeats, kernel versions, etc. out to the Internet, leading to an information exposure vulnerability. This issue affects Juniper Networks Junos OS on QFX5110, QFX5120, QFX5200, QFX5210 Series, and QFX5100 with QFX 5e Series image installed: All versions prior to 17.3R3-S12; 18.1 versions prior to 18.1R3-S13; 18.3 versions prior to 18.3R3-S5; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R3-S5; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R2-S1, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2;
References
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: juniper

Published: 2021-10-19T18:17:05.112598Z

Updated: 2024-09-17T03:48:24.106Z

Reserved: 2021-04-15T00:00:00

Link: CVE-2021-31371

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-10-19T19:15:10.277

Modified: 2024-11-21T06:05:32.210

Link: CVE-2021-31371

cve-icon Redhat

No data.