CVE-2022-22217 (GCVE-0-2022-22217)

Vulnerability from cvelistv5 – Published: 2022-07-20 14:15 – Updated: 2024-09-17 02:51
VLAI?
Title
Junos OS: QFX10K Series: Denial of Service (DoS) upon receipt of crafted MLD packets on multi-homing ESI in VXLAN
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a Denial of Service (DoS). The issue is caused by malformed MLD packets looping on a multi-homed Ethernet Segment Identifier (ESI) when VXLAN is configured. These MLD packets received on a multi-homed ESI are sent to the peer, and then incorrectly forwarded out the same ESI, violating the split horizon rule. This issue only affects QFX10K Series switches, including the QFX10002, QFX10008, and QFX10016. Other products and platforms are unaffected by this vulnerability. This issue affects Juniper Networks Junos OS on QFX10K Series: All versions prior to 19.1R3-S9; 19.2 versions prior to 19.2R1-S9, 19.2R3-S5; 19.3 versions prior to 19.3R3-S6; 19.4 versions prior to 19.4R2-S7, 19.4R3-S8; 20.1 versions prior to 20.1R3-S4; 20.2 versions prior to 20.2R3-S4; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S2; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2-S1, 21.2R3; 21.3 versions prior to 21.3R2.
Severity ?
6.1 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
CWE
  • CWE-754 - Improper Check for Unusual or Exceptional Conditions
  • Denial of Service (DoS)
Assigner
References
https://kb.juniper.net/JSA69721 x_refsource_CONFIRM
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: unspecified , < 19.1R3-S9 (custom)
Affected: 19.2 , < 19.2R1-S9, 19.2R3-S5 (custom)
Affected: 19.3 , < 19.3R3-S6 (custom)
Affected: 19.4 , < 19.4R2-S7, 19.4R3-S8 (custom)
Affected: 20.1 , < 20.1R3-S4 (custom)
Affected: 20.2 , < 20.2R3-S4 (custom)
Affected: 20.3 , < 20.3R3-S2 (custom)
Affected: 20.4 , < 20.4R3-S2 (custom)
Affected: 21.1 , < 21.1R3 (custom)
Affected: 21.2 , < 21.2R2-S1, 21.2R3 (custom)
Affected: 21.3 , < 21.3R2 (custom)
Create a notification for this product.
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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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