gopacket up to 1.6.0 Diameter AVP decoder allocation of resources

Summaryinfo

A vulnerability described as problematic has been identified in gopacket up to 1.6.0. Affected by this issue is some unknown functionality of the component Diameter AVP decoder. The manipulation results in allocation of resources. This vulnerability is cataloged as CVE-2026-54345. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in gopacket up to 1.6.0. Affected is an unknown code block of the component Diameter AVP decoder. The manipulation with an unknown input leads to a allocation of resources vulnerability. CWE is classifying the issue as CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. This is going to have an impact on availability. CVE summarizes:

gopacket provides packet processing capabilities for Go. In version 1.6.0 and earlier, the Diameter AVP decoder computes an AVP data length by subtracting a fixed header size from an attacker-controlled AVP Length field, so a vendor-flagged AVP whose Length is smaller than the 12-byte header underflows the unsigned 32-bit value and drives an unbounded allocation of roughly 4 GiB, and two such messages in succession OOM-kill a collector, causing an unauthenticated remote denial of service. This issue is fixed in version 1.6.1.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-54345 since 06/12/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 1.6.1 eliminates this vulnerability.

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Productinfo

Name

• gopacket

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6.0

Website

• Product: https://github.com/gopacket/gopacket/

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