CVE-2023-28974
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Junos OS: MX Series: In a BBE scenario upon receipt of specific malformed packets from subscribers the process bbe-smgd will crash
An Improper Check for Unusual or Exceptional Conditions vulnerability in the bbe-smgd of Juniper Networks Junos OS allows an unauthenticated, adjacent attacker 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 prior to 19.4R3-S11; 20.2 versions prior to 20.2R3-S7; 20.3 versions prior to 20.3R3-S6; 20.4 versions prior to 20.4R3-S6; 21.1 versions prior to 21.1R3-S4; 21.2 versions prior to 21.2R3-S4; 21.3 versions prior to 21.3R3-S3; 21.4 versions prior to 21.4R3-S2; 22.1 versions prior to 22.1R2-S2, 22.1R3; 22.2 versions prior to 22.2R2; 22.3 versions prior to 22.3R1-S2, 22.3R2.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Junos OS
- Vendor
- Juniper Networks
- Product
- Junos OS
- Platforms
- MX Series
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| unspecified | affected | custom | 19.4R3-S11 | Unavailable | None listed |
| 20.2 | affected | custom | 20.2R3-S7 | Unavailable | None listed |
| 20.3 | affected | custom | 20.3R3-S6 | Unavailable | None listed |
| 20.4 | affected | custom | 20.4R3-S6 | Unavailable | None listed |
| 21.1 | affected | custom | 21.1R3-S4 | Unavailable | None listed |
| 21.2 | affected | custom | 21.2R3-S4 | Unavailable | None listed |
| 21.3 | affected | custom | 21.3R3-S3 | Unavailable | None listed |
| 21.4 | affected | custom | 21.4R3-S2 | Unavailable | None listed |
| 22.1 | affected | custom | 22.1R2-S2, 22.1R3 | Unavailable | None listed |
| 22.2 | affected | custom | 22.2R2 | Unavailable | None listed |
| 22.3 | affected | custom | 22.3R1-S2, 22.3R2 | Unavailable | None listed |