Riskcovery

CVE-2024-21598

Junos OS and Junos OS Evolved: A malformed BGP tunnel encapsulation attribute will lead to an rpd crash

State
Published
Severity
8.7 High
Published
Apr 12, 2024
Updated
Aug 1, 2024
Reserved
Dec 27, 2023

Read the record on cve.org

Description

An Improper Validation of Syntactic Correctness of Input vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS).

If a BGP update is received over an established BGP session which contains a tunnel encapsulation attribute with a specifically malformed TLV, rpd will crash and restart.

This issue affects Juniper Networks Junos OS: * 20.4 versions 20.4R1 and later versions earlier than 20.4R3-S9; * 21.2 versions earlier than 21.2R3-S7; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S5; * 22.1 versions earlier than 22.1R3-S4; * 22.2 versions earlier than 22.2R3-S3; * 22.3 versions earlier than 22.3R3-S1; * 22.4 versions earlier than 22.4R3; * 23.2 versions earlier than 23.2R1-S2, 23.2R2;

Junos OS Evolved: * 20.4-EVO versions 20.4R1-EVO and later versions earlier than 20.4R3-S9-EVO; * 21.2-EVO versions earlier than 21.2R3-S7-EVO; * 21.3-EVO versions earlier than 21.3R3-S5-EVO; * 21.4-EVO versions earlier than 21.4R3-S5-EVO; * 22.1-EVO versions earlier than 22.1R3-S4-EVO; * 22.2-EVO versions earlier than 22.2R3-S3-EVO; * 22.3-EVO versions earlier than 22.3R3-S1-EVO; * 22.4-EVO versions earlier than 22.4R3-EVO; * 23.2-EVO versions earlier than 23.2R1-S2-EVO, 23.2R2-EVO;

This issue does not affect Juniper Networks * Junos OS versions earlier than 20.4R1; * Junos OS Evolved versions earlier than 20.4R1-EVO.

This is a related but separate issue than the one described in JSA79095.

Scores

CVSSScoreVectorSource
4.08.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Ljuniper
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hjuniper

Weaknesses

  • CWE-1286 Improper Validation of Syntactic Correctness of Input

Affected Products

ProductVersions
Junos OSJuniper Networks
  • 20.4 to before 20.4R3-S9Affected
  • 21.2 to before 21.2R3-S7Affected
  • 21.3 to before 21.3R3-S5Affected
  • 21.4 to before 21.4R3-S5Affected
  • 22.1 to before 22.1R3-S4Affected
  • 22.2 to before 22.2R3-S3Affected
  • 22.3 to before 22.3R3-S1Affected
  • 22.4 to before 22.4R3Affected
  • 23.2 to before 23.2R1-S2, 23.2R2Affected
Junos OS EvolvedJuniper Networks
  • 20.4-EVO to before 20.4R3-S9-EVOAffected
  • 21.2-EVO to before 21.2R3-S7-EVOAffected
  • 21.3-EVO to before 21.3R3-S5-EVOAffected
  • 21.4-EVO to before 21.4R3-S5-EVOAffected
  • 22.1-EVO to before 22.1R3-S4-EVOAffected
  • 22.2-EVO to before 22.2R3-S3-EVOAffected
  • 22.3-EVO to before 22.3R3-S1-EVOAffected
  • 22.4-EVO to before 22.4R3-EVOAffected
  • 23.2-EVO to before 23.2R1-S2-EVO, 23.2R2-EVOAffected

References

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