CVE-2021-0214 (GCVE-0-2021-0214)

Vulnerability from cvelistv5 – Published: 2021-04-22 19:36 – Updated: 2024-09-17 00:45
VLAI?
Title
Junos OS: Denial of Service in ppmd upon receipt of malformed packet
Summary
A vulnerability in the distributed or centralized periodic packet management daemon (PPMD) of Juniper Networks Junos OS may cause receipt of a malformed packet to crash and restart the PPMD process, leading to network destabilization, service interruption, and a Denial of Service (DoS) condition. Continued receipt and processing of these malformed packets will repeatedly crash the PPMD process and sustain the Denial of Service (DoS) condition. Due to the nature of the specifically crafted packet, exploitation of this issue requires direct, adjacent connectivity to the vulnerable component. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S12, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S6; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S5, 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3-S1; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S2, 20.2R2.
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-20 - Improper Input Validation
  • Denial of Service
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: 17.3 , < 17.3R3-S11 (custom)
Affected: 17.4 , < 17.4R2-S12, 17.4R3-S4 (custom)
Affected: 18.1 , < 18.1R3-S12 (custom)
Affected: 18.2 , < 18.2R2-S8, 18.2R3-S7 (custom)
Affected: 18.3 , < 18.3R3-S4 (custom)
Affected: 18.4 , < 18.4R1-S8, 18.4R2-S7, 18.4R3-S6 (custom)
Affected: 19.1 , < 19.1R1-S6, 19.1R2-S2, 19.1R3-S4 (custom)
Affected: 19.2 , < 19.2R1-S5, 19.2R3-S1 (custom)
Affected: 19.3 , < 19.3R2-S5, 19.3R3-S1 (custom)
Affected: 19.4 , < 19.4R2-S2, 19.4R3 (custom)
Affected: 20.1 , < 20.1R2 (custom)
Affected: 20.2 , < 20.2R1-S2, 20.2R2 (custom)
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Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.