CVE-2023-36848 (GCVE-0-2023-36848)
Vulnerability from cvelistv5 – Published: 2023-07-14 17:52 – Updated: 2024-10-22 14:19
VLAI
EPSS
VEX
Title
Junos OS: MX Series: The FPC will crash on receiving a malformed CFM packet
Summary
An Improper Handling of Undefined Values vulnerability in the periodic packet management daemon (PPMD) of Juniper Networks Junos OS on MX Series(except MPC10, MPC11 and LC9600) allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS).
When a malformed CFM packet is received, it leads to an FPC crash. Continued receipt of these packets causes a sustained denial of service. This vulnerability occurs only when CFM has been configured on the interface.
This issue affects Juniper Networks Junos OS:
versions prior to 19.1R3-S10 on MX Series;
19.2 versions prior to 19.2R3-S7 on MX Series;
19.3 versions prior to 19.3R3-S8 on MX Series;
19.4 versions prior to 19.4R3-S12 on MX Series;
20.1 version 20.1R1 and later versions on MX Series;
20.2 versions prior to 20.2R3-S8 on MX Series;
20.3 version 20.3R1 and later versions on MX Series;
20.4 versions prior to 20.4R3-S7 on MX Series;
21.1 versions prior to 21.1R3-S5 on MX Series;
21.2 versions prior to 21.2R3-S5 on MX Series;
21.3 versions prior to 21.3R3-S4 on MX Series;
21.4 versions prior to 21.4R3-S4 on MX Series;
22.1 versions prior to 22.1R3-S3 on MX Series;
22.2 versions prior to 22.2R3-S1 on MX Series;
22.3 versions prior to 22.3R3 on MX Series;
22.4 versions prior to 22.4R1-S2, 22.4R2 on MX Series.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 14:07 UTC
CWE
- CWE-232 - Improper Handling of Undefined Values
- Denial of Service (DoS)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
unspecified , < 19.1R3-S10
(custom)
Affected: 19.2 , < 19.2R3-S7 (custom) Affected: 19.3 , < 19.3R3-S8 (custom) Affected: 19.4 , < 19.4R3-S12 (custom) Affected: 20.1 , < 20.1* (custom) Affected: 20.2 , < 20.2R3-S8 (custom) Affected: 20.3 , < 20.3* (custom) Affected: 20.4 , < 20.4R3-S7 (custom) Affected: 21.1 , < 21.1R3-S5 (custom) Affected: 21.2 , < 21.2R3-S5 (custom) Affected: 21.3 , < 21.3R3-S4 (custom) Affected: 21.4 , < 21.4R3-S4 (custom) Affected: 22.1 , < 22.1R3-S3 (custom) Affected: 22.2 , < 22.2R3-S1 (custom) Affected: 22.3 , < 22.3R3 (custom) Affected: 22.4 , < 22.4R1-S2, 22.4R2 (custom) |
guessed |
Date Public
2023-07-12 16:00
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.