CVE-2021-0288 (GCVE-0-2021-0288)

Vulnerability from cvelistv5 – Published: 2021-07-15 20:01 – Updated: 2024-09-17 02:10
VLAI?
Title
Junos OS: MX Series, EX9200 Series: FPC may crash upon receipt of specific MPLS packet affecting Trio-based MPCs
Summary
A vulnerability in the processing of specific MPLS packets in Juniper Networks Junos OS on MX Series and EX9200 Series devices with Trio-based MPCs (Modular Port Concentrators) may cause FPC to crash and lead to a Denial of Service (DoS) condition. Continued receipt of this packet will sustain the Denial of Service (DoS) condition. This issue only affects MX Series and EX9200 Series with Trio-based PFEs (Packet Forwarding Engines). This issue affects Juniper Networks Junos OS on MX Series, EX9200 Series: 17.3 versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R2-S13, 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R2-S8, 18.4R3-S8; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R2-S2, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2;
Severity ?
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
https://kb.juniper.net/JSA11190 x_refsource_CONFIRM
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: 17.3 , < 17.3R3-S12 (custom)
Affected: 17.4 , < 17.4R2-S13, 17.4R3-S5 (custom)
Affected: 18.1 , < 18.1R3-S13 (custom)
Affected: 18.2 , < 18.2R3-S8 (custom)
Affected: 18.3 , < 18.3R3-S5 (custom)
Affected: 18.4 , < 18.4R2-S8, 18.4R3-S8 (custom)
Affected: 19.1 , < 19.1R3-S5 (custom)
Affected: 19.2 , < 19.2R3-S2 (custom)
Affected: 19.3 , < 19.3R2-S6, 19.3R3-S3 (custom)
Affected: 19.4 , < 19.4R1-S4, 19.4R1-S4, 19.4R2-S4, 19.4R3-S2 (custom)
Affected: 20.1 , < 20.1R3 (custom)
Affected: 20.2 , < 20.2R2-S2, 20.2R3 (custom)
Affected: 20.3 , < 20.3R2 (custom)
Affected: 20.4 , < 20.4R2 (custom)
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Sightings

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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.



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