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CVE-2023-46239

7.5 · HIGH

quic-go is an implementation of the QUIC protocol in Go.

Published Oct 31, 2023CWE-248EPSS 0.77%

Overview

CVE-2023-46239 is a high-severity vulnerability. It was published on October 31, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

quic-go is an implementation of the QUIC protocol in Go. Starting in version 0.37.0 and prior to version 0.37.3, by serializing an ACK frame after the CRYTPO that allows a node to complete the handshake, a remote node could trigger a nil pointer dereference (leading to a panic) when the node attempted to drop the Handshake packet number space. An attacker can bring down a quic-go node with very minimal effort. Completing the QUIC handshake only requires sending and receiving a few packets. Version 0.37.3 contains a patch. Versions before 0.37.0 are not affected.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/quic-go/quic-go/commit/b6a4725b60f1fe04e8f1ddcc3114e290fcea1617GitHubgithub.com/quic-go/quic-go/releases/tag/v0.37.3GitHubgithub.com/quic-go/quic-go/security/advisories/GHSA-3q6m-v84f-6p9hGitHubgithub.com/quic-go/quic-go/commit/b6a4725b60f1fe04e8f1ddcc3114e290fcea1617GitHubgithub.com/quic-go/quic-go/releases/tag/v0.37.3GitHubgithub.com/quic-go/quic-go/security/advisories/GHSA-3q6m-v84f-6p9h

How CyberStrike helps

Frequently asked questions

What is CVE-2023-46239?

CVE-2023-46239 is a high-severity vulnerability. It was published on October 31, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-46239?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-46239?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-46239?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-46239 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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