CVE-2023-46239

quic-go vulnerable to pointer dereference that can lead to panic

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.

Categories

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.43%
Vendor Advisory github.com
Affected: quic-go quic-go
Published at:
Updated at:

References

Link Tags
https://github.com/quic-go/quic-go/security/advisories/GHSA-3q6m-v84f-6p9h patch vendor advisory
https://github.com/quic-go/quic-go/commit/b6a4725b60f1fe04e8f1ddcc3114e290fcea1617 patch
https://github.com/quic-go/quic-go/releases/tag/v0.37.3 release notes

Frequently Asked Questions

What is the severity of CVE-2023-46239?
CVE-2023-46239 has been scored as a high severity vulnerability.
How to fix CVE-2023-46239?
To fix CVE-2023-46239, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-46239 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-46239 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-46239?
CVE-2023-46239 affects quic-go quic-go.
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