CVE-2020-1645

Summary

When DNS filtering is enabled on Juniper Networks Junos MX Series with one of the following cards MS-PIC, MS-MIC or MS-MPC, an incoming stream of packets processed by the Multiservices PIC Management Daemon (mspmand) process, responsible for managing "URL Filtering service", may crash, causing the Services PIC to restart. While the Services PIC is restarting, all PIC services including DNS filtering service (DNS sink holing) will be bypassed until the Services PIC completes its boot process. If the issue occurs, system core-dumps output will show a crash of mspmand process: root@device> show system core-dumps -rw-rw—- 1 nobody wheel 575685123 <Date> /var/tmp/pics/mspmand.core.<*>.gz This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S8; 18.3 versions prior to 18.3R2-S4, 18.3R3-S1; 18.4 versions prior to 18.4R2-S5, 18.4R3; 19.1 versions prior to 19.1R2-S2, 19.1R3; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R2-S3, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2. This issue does not affect Juniper Networks Junos OS releases prior to 17.3R2.

Affected Software

VendorProductVersion RangeStatus
Juniper NetworksJunos OSunspecified < 17.3R2unaffected
Juniper NetworksJunos OS17.4unaffected
Juniper NetworksJunos OS18.1unaffected
Juniper NetworksJunos OS18.2unaffected
Juniper NetworksJunos OS17.3 < 17.3R3-S8affected
Juniper NetworksJunos OS18.3 < 18.3R2-S4, 18.3R3-S1affected
Juniper NetworksJunos OS18.4 < 18.4R2-S5, 18.4R3affected
Juniper NetworksJunos OS19.1 < 19.1R2-S2, 19.1R3affected
Juniper NetworksJunos OS19.2 < 19.2R1-S5, 19.2R2affected
Juniper NetworksJunos OS19.3 < 19.3R2-S3, 19.3R3affected
Juniper NetworksJunos OS19.4 < 19.4R1-S3, 19.4R2affected

Weaknesses

  • CWE-362: CWE-362 Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization)

Workarounds

There are no viable workarounds for this issue.

ADP Enrichment

CVE Program Container

Additional References

References