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CVE-2025-43972

Good to know:

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Date: April 20, 2025

An issue was discovered in GoBGP before 3.35.0. An attacker can cause a crash in the pkg/packet/bgp/bgp.go flowspec parser by sending fewer than 20 bytes in a certain context.

Severity Score

Related Resources (7)

https://github.com/advisories/GHSA-mfvv-mgf6-q25r
https://github.com/osrg/gobgp/commit/ca7383f450f7b296c5389feceef2467de5ab6e5a
https://github.com/osrg/gobgp/compare/v3.34.0...v3.35.0
https://github.com/osrg/gobgp
https://nvd.nist.gov/vuln/detail/CVE-2025-43972
https://security-tracker.debian.org/tracker/CVE-2025-43972
https://www.mend.io/vulnerability-database/CVE-2025-43972

Severity Score

Weakness Type (CWE)

Improper Validation of Specified Quantity in Input

CWE-1284

Top Fix

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Upgrade Version

Upgrade to version github.com/osrg/gobgp/v3 - v3.35.0;https://github.com/osrg/gobgp.git - v3.35.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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