high
8.7
CWE
1286
Advisory Published
Updated

CVE-2024-21598: Junos OS and Junos OS Evolved: A malformed BGP tunnel encapsulation attribute will lead to an rpd crash

First published: Fri Apr 12 2024(Updated: )

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.

Credit: sirt@juniper.net

Affected SoftwareAffected VersionHow to fix
Juniper Networks Junos OS>=20.4R1<20.4R3-S9<21.2R3-S7<21.3R3-S5<21.4R3-S5<22.1R3-S4<22.2R3-S3<22.3R3-S1<22.4R3<23.2R1-S2<23.2R2
Juniper Networks Junos OS Evolved>=20.4R1-EVO<20.4R3-S9-EVO<21.2R3-S7-EVO<21.3R3-S5-EVO<21.4R3-S5-EVO<22.1R3-S4-EVO<22.2R3-S3-EVO<22.3R3-S1-EVO<22.4R3-EVO<23.2R1-S2-EVO<23.2R2-EVO
Juniper JUNOS=20.4-r1
Juniper JUNOS=20.4-r1-s1
Juniper JUNOS=20.4-r2
Juniper JUNOS=20.4-r2-s1
Juniper JUNOS=20.4-r2-s2
Juniper JUNOS=20.4-r3
Juniper JUNOS=20.4-r3-s1
Juniper JUNOS=20.4-r3-s2
Juniper JUNOS=20.4-r3-s3
Juniper JUNOS=20.4-r3-s4
Juniper JUNOS=20.4-r3-s5
Juniper JUNOS=20.4-r3-s6
Juniper JUNOS=20.4-r3-s7
Juniper JUNOS=20.4-r3-s8
Juniper JUNOS=21.2
Juniper JUNOS=21.2-r1
Juniper JUNOS=21.2-r1-s1
Juniper JUNOS=21.2-r1-s2
Juniper JUNOS=21.2-r2
Juniper JUNOS=21.2-r2-s1
Juniper JUNOS=21.2-r2-s2
Juniper JUNOS=21.2-r3
Juniper JUNOS=21.2-r3-s1
Juniper JUNOS=21.2-r3-s2
Juniper JUNOS=21.2-r3-s3
Juniper JUNOS=21.2-r3-s4
Juniper JUNOS=21.2-r3-s5
Juniper JUNOS=21.2-r3-s6
Juniper JUNOS=21.3
Juniper JUNOS=21.3-r1
Juniper JUNOS=21.3-r1-s1
Juniper JUNOS=21.3-r1-s2
Juniper JUNOS=21.3-r2
Juniper JUNOS=21.3-r2-s1
Juniper JUNOS=21.3-r2-s2
Juniper JUNOS=21.3-r3
Juniper JUNOS=21.3-r3-s1
Juniper JUNOS=21.3-r3-s2
Juniper JUNOS=21.3-r3-s3
Juniper JUNOS=21.3-r3-s4
Juniper JUNOS=21.4
Juniper JUNOS=21.4-r1
Juniper JUNOS=21.4-r1-s1
Juniper JUNOS=21.4-r1-s2
Juniper JUNOS=21.4-r2
Juniper JUNOS=21.4-r2-s1
Juniper JUNOS=21.4-r2-s2
Juniper JUNOS=21.4-r3
Juniper JUNOS=21.4-r3-s1
Juniper JUNOS=21.4-r3-s2
Juniper JUNOS=21.4-r3-s3
Juniper JUNOS=21.4-r3-s4
Juniper JUNOS=22.1
Juniper JUNOS=22.1-r1
Juniper JUNOS=22.1-r1-s1
Juniper JUNOS=22.1-r1-s2
Juniper JUNOS=22.1-r2
Juniper JUNOS=22.1-r2-s1
Juniper JUNOS=22.1-r2-s2
Juniper JUNOS=22.1-r3
Juniper JUNOS=22.1-r3-s1
Juniper JUNOS=22.1-r3-s2
Juniper JUNOS=22.1-r3-s3
Juniper JUNOS=22.2
Juniper JUNOS=22.2-r1
Juniper JUNOS=22.2-r1-s1
Juniper JUNOS=22.2-r1-s2
Juniper JUNOS=22.2-r2
Juniper JUNOS=22.2-r2-s1
Juniper JUNOS=22.2-r2-s2
Juniper JUNOS=22.2-r3
Juniper JUNOS=22.2-r3-s1
Juniper JUNOS=22.2-r3-s2
Juniper JUNOS=22.3
Juniper JUNOS=22.3-r1
Juniper JUNOS=22.3-r1-s1
Juniper JUNOS=22.3-r1-s2
Juniper JUNOS=22.3-r2
Juniper JUNOS=22.3-r2-s1
Juniper JUNOS=22.3-r2-s2
Juniper JUNOS=22.3-r3
Juniper JUNOS=22.4
Juniper JUNOS=22.4-r1
Juniper JUNOS=22.4-r1-s1
Juniper JUNOS=22.4-r1-s2
Juniper JUNOS=22.4-r2
Juniper JUNOS=22.4-r2-s1
Juniper JUNOS=22.4-r2-s2
Juniper JUNOS=23.2
Juniper JUNOS=23.2-r1
Juniper JUNOS=23.2-r1-s1
Juniper Junos os Evolved=20.4-r1
Juniper Junos os Evolved=20.4-r1-s1
Juniper Junos os Evolved=20.4-r1-s2
Juniper Junos os Evolved=20.4-r2
Juniper Junos os Evolved=20.4-r2-s1
Juniper Junos os Evolved=20.4-r2-s2
Juniper Junos os Evolved=20.4-r2-s3
Juniper Junos os Evolved=20.4-r3
Juniper Junos os Evolved=20.4-r3-s1
Juniper Junos os Evolved=20.4-r3-s2
Juniper Junos os Evolved=20.4-r3-s3
Juniper Junos os Evolved=20.4-r3-s4
Juniper Junos os Evolved=20.4-r3-s5
Juniper Junos os Evolved=20.4-r3-s6
Juniper Junos os Evolved=20.4-r3-s7
Juniper Junos os Evolved=20.4-r3-s8
Juniper Junos os Evolved=21.2
Juniper Junos os Evolved=21.2-r1
Juniper Junos os Evolved=21.2-r1-s1
Juniper Junos os Evolved=21.2-r1-s2
Juniper Junos os Evolved=21.2-r2
Juniper Junos os Evolved=21.2-r2-s1
Juniper Junos os Evolved=21.2-r2-s2
Juniper Junos os Evolved=21.2-r3
Juniper Junos os Evolved=21.2-r3-s1
Juniper Junos os Evolved=21.2-r3-s2
Juniper Junos os Evolved=21.2-r3-s3
Juniper Junos os Evolved=21.2-r3-s4
Juniper Junos os Evolved=21.2-r3-s5
Juniper Junos os Evolved=21.2-r3-s6
Juniper Junos os Evolved=21.3
Juniper Junos os Evolved=21.3-r1
Juniper Junos os Evolved=21.3-r1-s1
Juniper Junos os Evolved=21.3-r2
Juniper Junos os Evolved=21.3-r2-s1
Juniper Junos os Evolved=21.3-r2-s2
Juniper Junos os Evolved=21.3-r3
Juniper Junos os Evolved=21.3-r3-s1
Juniper Junos os Evolved=21.3-r3-s2
Juniper Junos os Evolved=21.3-r3-s3
Juniper Junos os Evolved=21.3-r3-s4
Juniper Junos os Evolved=21.4
Juniper Junos os Evolved=21.4-r1
Juniper Junos os Evolved=21.4-r1-s1
Juniper Junos os Evolved=21.4-r1-s2
Juniper Junos os Evolved=21.4-r2
Juniper Junos os Evolved=21.4-r2-s1
Juniper Junos os Evolved=21.4-r2-s2
Juniper Junos os Evolved=21.4-r3
Juniper Junos os Evolved=21.4-r3-s1
Juniper Junos os Evolved=21.4-r3-s2
Juniper Junos os Evolved=21.4-r3-s3
Juniper Junos os Evolved=21.4-r3-s4
Juniper Junos os Evolved=22.1
Juniper Junos os Evolved=22.1-r1
Juniper Junos os Evolved=22.1-r1-s1
Juniper Junos os Evolved=22.1-r1-s2
Juniper Junos os Evolved=22.1-r2
Juniper Junos os Evolved=22.1-r2-s1
Juniper Junos os Evolved=22.1-r3
Juniper Junos os Evolved=22.1-r3-s1
Juniper Junos os Evolved=22.1-r3-s2
Juniper Junos os Evolved=22.1-r3-s3
Juniper Junos os Evolved=22.2
Juniper Junos os Evolved=22.2-r1
Juniper Junos os Evolved=22.2-r1-s1
Juniper Junos os Evolved=22.2-r1-s2
Juniper Junos os Evolved=22.2-r2
Juniper Junos os Evolved=22.2-r2-s1
Juniper Junos os Evolved=22.2-r2-s2
Juniper Junos os Evolved=22.2-r3
Juniper Junos os Evolved=22.2-r3-s1
Juniper Junos os Evolved=22.2-r3-s2
Juniper Junos os Evolved=22.3
Juniper Junos os Evolved=22.3-r1
Juniper Junos os Evolved=22.3-r1-s1
Juniper Junos os Evolved=22.3-r1-s2
Juniper Junos os Evolved=22.3-r2
Juniper Junos os Evolved=22.3-r2-s1
Juniper Junos os Evolved=22.3-r2-s2
Juniper Junos os Evolved=22.3-r3
Juniper Junos os Evolved=22.4
Juniper Junos os Evolved=22.4-r1
Juniper Junos os Evolved=22.4-r1-s1
Juniper Junos os Evolved=22.4-r1-s2
Juniper Junos os Evolved=22.4-r2
Juniper Junos os Evolved=22.4-r2-s1
Juniper Junos os Evolved=22.4-r2-s2
Juniper Junos os Evolved=23.2
Juniper Junos os Evolved=23.2-r1
Juniper Junos os Evolved=23.2-r1-s1

Remedy

The following software releases have been updated to resolve this specific issue: Junos OS: 20.4R3-S9, 21.2R3-S7, 21.3R3-S5, 21.4R3-S5, 22.1R3-S4, 22.2R3-S3, 22.3R3-S1, 22.4R3, 23.2R1-S2, 23.2R2, 23.4R1, and all subsequent releases; Junos OS Evolved: 20.4R3-S9-EVO, 21.2R3-S7-EVO, 21.3R3-S5-EVO, 21.4R3-S5-EVO, 22.1R3-S4-EVO, 22.2R3-S3-EVO, 22.3R3-S1-EVO, 22.4R3-EVO, 23.2R1-S2-EVO, 23.2R2-EVO, 23.4R1-EVO, and all subsequent releases.

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2024-21598?

    CVE-2024-21598 has been classified as a high severity vulnerability that can lead to a Denial of Service (DoS).

  • How do I fix CVE-2024-21598?

    To fix CVE-2024-21598, upgrade your Junos OS or Junos OS Evolved to a patched version that addresses this vulnerability.

  • What products are affected by CVE-2024-21598?

    CVE-2024-21598 affects multiple versions of Juniper Networks Junos OS and Junos OS Evolved.

  • Can CVE-2024-21598 be exploited remotely?

    Yes, CVE-2024-21598 can be exploited by a network-based, unauthenticated attacker.

  • What impact does CVE-2024-21598 have on my network?

    CVE-2024-21598 allows an attacker to cause a Denial of Service, potentially disrupting network operations.

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