An Improper Check for Unusual or Exceptional Conditions vulnerability in the bbe-smgd of Juniper Networks Junos OS allows an unauthenticated, adjacent malicious user to cause a Denial of Service (DoS). In a Broadband Edge / Subscriber Management scenario on MX Series when a specifically malformed ICMP packet addressed to the device is received from a subscriber the bbe-smgd will crash, affecting the subscriber sessions that are connecting, updating, or terminating. Continued receipt of such packets will lead to a sustained DoS condition. When this issue happens the below log can be seen if the traceoptions for the processes smg-service are enabled: BBE_TRACE(TRACE_LEVEL_INFO, "%s: Dropped unsupported ICMP PKT ... This issue affects Juniper Networks Junos OS on MX Series: All versions before 19.4R3-S11; 20.2 versions before 20.2R3-S7; 20.3 versions before 20.3R3-S6; 20.4 versions before 20.4R3-S6; 21.1 versions before 21.1R3-S4; 21.2 versions before 21.2R3-S4; 21.3 versions before 21.3R3-S3; 21.4 versions before 21.4R3-S2; 22.1 versions before 22.1R2-S2, 22.1R3; 22.2 versions before 22.2R2; 22.3 versions before 22.3R1-S2, 22.3R2.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
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juniper junos |
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juniper junos 19.4 |
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juniper junos 20.2 |
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juniper junos 20.3 |
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juniper junos 21.1 |
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juniper junos 21.2 |
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juniper junos 21.3 |
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juniper junos 21.4 |
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juniper junos 22.1 |
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juniper junos 22.2 |
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juniper junos 22.3 |
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