Junos OS: MX Series: In BBE configurations, receipt of a specific MPLS or IPv6 packet causes a Denial of Service

Summary

Receipt of a specific MPLS or IPv6 packet on the core facing interface of an MX Series device configured for Broadband Edge (BBE) service may trigger a kernel crash (vmcore), causing the device to reboot. The issue is specific to the processing of packets destined to BBE clients connected to MX Series subscriber management platforms. This issue affects MX Series running Juniper Networks Junos OS: 17.2 versions starting from17.2R2-S6, 17.2R3 and later releases, prior to 17.2R3-S3; 17.3 versions starting from 17.3R2-S4, 17.3R3-S2 and later releases, prior to 17.3R2-S5, 17.3R3-S5; 17.4 versions starting from 17.4R2 and later releases, prior to 17.4R2-S7,17.4R3; 18.1 versions starting from 18.1R2-S3, 18.1R3 and later releases, prior to 18.1R3-S6; 18.2 versions starting from18.2R1-S1, 18.2R2 and later releases, prior to 18.2R3-S2; 18.2X75 versions prior to 18.2X75-D51, 18.2X75-D60; 18.3 versions prior to 18.3R3; 18.4 versions prior to 18.4R2; 19.1 versions prior to 19.1R1-S3, 19.1R2; 19.2 versions prior to 19.2R1-S2, 19.2R2. This issue does not affect Juniper Networks Junos OS versions prior to 17.2R2-S6.

Timeline

1. Jan 15, 2020, 8:40 AM UTCCVE published
2. Sep 17, 2024, 1:36 AM UTCRecord last updated

Affected versions

• Juniper Networks Junos OS

  fixed in 17.2R3-S3; All versions; From 17.4R2 · fixed in 17.4R2-S7,17.4R3; fixed in 18.1R3-S6; fixed in 18.2R3-S2; From 18.3 · fixed in 18.3R3; From 18.4 · fixed in 18.4R2

References 1