CVE-2021-0261

Name of the Vulnerable Software and Affected Versions: Junos OS versions prior to 12.3R12-S17 on EX Series Junos OS versions prior to 12.3X48-D105 on SRX Series Junos OS versions prior to 15.1R7-S8 Junos OS versions prior to 15.1X49-D230 on SRX Series Junos OS versions prior to 16.1R7-S8 Junos OS versions prior to 17.4R2-S12 Junos OS versions prior to 17.4R3-S3 Junos OS versions prior to 18.1R3-S11 Junos OS versions prior to 18.2R3-S6 Junos OS versions prior to 18.3R2-S4 Junos OS versions prior to 18.3R3-S3 Junos OS versions prior to 18.4R2-S5 Junos OS versions prior to 18.4R3-S4 Junos OS versions prior to 19.1R2-S2 Junos OS versions prior to 19.1R3-S2 Junos OS versions prior to 19.2R1-S5 Junos OS versions prior to 19.2R3 Junos OS versions prior to 19.3R2-S4 Junos OS versions prior to 19.3R3 Junos OS versions prior to 19.4R1-S3 Junos OS versions prior to 19.4R2-S2 Junos OS versions prior to 19.4R3 Junos OS versions prior to 20.1R1-S3 Junos OS versions prior to 20.1R2 Junos OS versions prior to 20.2R1-S1 Junos OS versions prior to 20.2R2

Description: A vulnerability in the HTTP/HTTPS service allows an unauthenticated attacker to cause an extended Denial of Service (DoS) for various services by sending a high number of specific requests. This issue affects several Juniper Networks Junos OS versions.

Recommendations: For Junos OS versions prior to 12.3R12-S17 on EX Series, update to 12.3R12-S17 or later. For Junos OS versions prior to 12.3X48-D105 on SRX Series, update to 12.3X48-D105 or later. For Junos OS versions prior to 15.1R7-S8, update to 15.1R7-S8 or later. For Junos OS versions prior to 15.1X49-D230 on SRX Series, update to 15.1X49-D230 or later. For Junos OS versions prior to 16.1R7-S8, update to 16.1R7-S8 or later. For Junos OS versions prior to 17.4R2-S12, update to 17.4R2-S12 or later. For Junos OS versions prior to 17.4R3-S3, update to 17.4R3-S3 or later. For Junos OS versions prior to 18.1R3-S11, update to 18.1R3-S11 or later. For Junos OS versions prior to 18.2R3-S6, update to 18.2R3-S6 or later. For Junos OS versions prior to 18.3R2-S4, update to 18.3R2-S4 or later. For Junos OS versions prior to 18.3R3-S3, update to 18.3R3-S3 or later. For Junos OS versions prior to 18.4R2-S5, update to 18.4R2-S5 or later. For Junos OS versions prior to 18.4R3-S4, update to 18.4R3-S4 or later. For Junos OS versions prior to 19.1R2-S2, update to 19.1R2-S2 or later. For Junos OS versions prior to 19.1R3-S2, update to 19.1R3-S2 or later. For Junos OS versions prior to 19.2R1-S5, update to 19.2R1-S5 or later. For Junos OS versions prior to 19.2R3, update to 19.2R3 or later. For Junos OS versions prior to 19.3R2-S4, update to 19.3R2-S4 or later. For Junos OS versions prior to 19.3R3, update to 19.3R3 or later. For Junos OS versions prior to 19.4R1-S3, update to 19.4R1-S3 or later. For Junos OS versions prior to 19.4R2-S2, update to 19.4R2-S2 or later. For Junos OS versions prior to 19.4R3, update to 19.4R3 or later. For Junos OS versions prior to 20.1R1-S3, update to 20.1R1-S3 or later. For Junos OS versions prior to 20.1R2, update to 20.1R2 or later. For Junos OS versions prior to 20.2R1-S1, update to 20.2R1-S1 or later. For Junos OS versions prior to 20.2R2, update to 20.2R2 or later.