Description
A vulnerability in Juniper Networks Junos OS on SRX Series, allows a network-based unauthenticated attacker to cause a Denial of Service (DoS) by sending a specific fragmented packet to the device, resulting in a flowd process crash, which is responsible for packet forwarding. Continued receipt and processing of this specific packet will create a sustained DoS condition. This issue only affects SRX Series when 'preserve-incoming-fragment-size' feature is enabled. This issue affects Juniper Networks Junos OS on SRX Series: 18.3 versions prior to 18.3R3-S6; 18.4 versions prior to 18.4R3-S10; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R3-S4; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2-S1, 21.1R3; 21.2 versions prior to 21.2R2. This issue does not affect Juniper Networks Junos OS prior to 17.3R1.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Juniper Networks Junos OS
unspecified to < 18.3R3-S6affectedunspecified to < 17.3R1unaffected17.3R1 to < 17.3*affected18.4 to < 18.4R3-S10affected19.1 to < 19.1R3-S7affected19.2 to < 19.2R3-S4affected19.3 to < 19.3R3-S4affected19.4 to < 19.4R3-S6affected20.1 to < 20.1R3-S2affected20.2 to < 20.2R3-S3affected20.3 to < 20.3R3-S1affected20.4 to < 20.4R3affected21.1 to < 21.1R2-S1, 21.1R3affected21.2 to < 21.2R2affected