A vulnerability in the processing of specific MPLS packets in Juniper Networks Junos OS on MX Series and EX9200 Series devices with Trio-based MPCs (Modular Port Concentrators) may cause FPC to crash and lead to a Denial of Service (DoS) condition. Continued receipt of this packet will sustain the Denial of Service (DoS) condition. This issue only affects MX Series and EX9200 Series with Trio-based PFEs (Packet Forwarding Engines). This issue affects Juniper Networks Junos OS on MX Series, EX9200 Series: 17.3 versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R2-S13, 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R2-S8, 18.4R3-S8; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R2-S2, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2;
The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.3 | 17.3 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 17.4 | 17.4 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.1 | 18.1 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.2 | 18.2 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.3 | 18.3 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 18.4 | 18.4 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.1 | 19.1 |
Junos | Juniper | 19.2 | 19.2 |
Junos | Juniper | 19.2 | 19.2 |
Junos | Juniper | 19.2 | 19.2 |
Junos | Juniper | 19.2 | 19.2 |
Junos | Juniper | 19.2 | 19.2 |
Junos | Juniper | 19.2 | 19.2 |
Junos | Juniper | 19.2 | 19.2 |
Junos | Juniper | 19.2 | 19.2 |
Junos | Juniper | 19.2 | 19.2 |
Junos | Juniper | 19.2 | 19.2 |
Junos | Juniper | 19.2 | 19.2 |
Junos | Juniper | 19.2 | 19.2 |
Junos | Juniper | 19.3 | 19.3 |
Junos | Juniper | 19.3 | 19.3 |
Junos | Juniper | 19.3 | 19.3 |
Junos | Juniper | 19.3 | 19.3 |
Junos | Juniper | 19.3 | 19.3 |
Junos | Juniper | 19.3 | 19.3 |
Junos | Juniper | 19.3 | 19.3 |
Junos | Juniper | 19.3 | 19.3 |
Junos | Juniper | 19.3 | 19.3 |
Junos | Juniper | 19.3 | 19.3 |
Junos | Juniper | 19.3 | 19.3 |
Junos | Juniper | 19.3 | 19.3 |
Junos | Juniper | 19.4 | 19.4 |
Junos | Juniper | 19.4 | 19.4 |
Junos | Juniper | 19.4 | 19.4 |
Junos | Juniper | 19.4 | 19.4 |
Junos | Juniper | 19.4 | 19.4 |
Junos | Juniper | 19.4 | 19.4 |
Junos | Juniper | 19.4 | 19.4 |
Junos | Juniper | 19.4 | 19.4 |
Junos | Juniper | 19.4 | 19.4 |
Junos | Juniper | 19.4 | 19.4 |
Junos | Juniper | 20.1 | 20.1 |
Junos | Juniper | 20.1 | 20.1 |
Junos | Juniper | 20.1 | 20.1 |
Junos | Juniper | 20.1 | 20.1 |
Junos | Juniper | 20.1 | 20.1 |
Junos | Juniper | 20.1 | 20.1 |
Junos | Juniper | 20.1 | 20.1 |
Junos | Juniper | 20.2 | 20.2 |
Junos | Juniper | 20.2 | 20.2 |
Junos | Juniper | 20.2 | 20.2 |
Junos | Juniper | 20.2 | 20.2 |
Junos | Juniper | 20.2 | 20.2 |
Junos | Juniper | 20.2 | 20.2 |
Junos | Juniper | 20.3 | 20.3 |
Junos | Juniper | 20.3 | 20.3 |
Junos | Juniper | 20.4 | 20.4 |
Junos | Juniper | 20.4 | 20.4 |
The programmer may assume that certain events or conditions will never occur or do not need to be worried about, such as low memory conditions, lack of access to resources due to restrictive permissions, or misbehaving clients or components. However, attackers may intentionally trigger these unusual conditions, thus violating the programmer’s assumptions, possibly introducing instability, incorrect behavior, or a vulnerability. Note that this entry is not exclusively about the use of exceptions and exception handling, which are mechanisms for both checking and handling unusual or unexpected conditions.