quic-go 0.50.0 uncaught exception

Summaryinfo

A vulnerability classified as problematic has been found in quic-go 0.50.0. This affects an unknown function. This manipulation causes uncaught exception. This vulnerability appears as CVE-2025-29785. The attack may be initiated remotely. There is no available exploit. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in quic-go 0.50.0. It has been declared as problematic. Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a uncaught exception vulnerability. The CWE definition for the vulnerability is CWE-248. An exception is thrown from a function, but it is not caught. As an impact it is known to affect availability. The summary by CVE is:

quic-go is an implementation of the QUIC protocol in Go. The loss recovery logic for path probe packets that was added in the v0.50.0 release can be used to trigger a nil-pointer dereference by a malicious QUIC client. In order to do so, the attacker first sends valid QUIC packets from different remote addresses (thereby triggering the newly added path validation logic: the server sends path probe packets), and then sending ACKs for packets received from the server specifically crafted to trigger the nil-pointer dereference. v0.50.1 contains a patch that fixes the vulnerability. This release contains a test that generates random sequences of sent packets (both regular and path probe packets), that was used to verify that the patch actually covers all corner cases. No known workarounds are available.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-29785 since 03/11/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

Applying the patch b90058aba5f65f48e0e150c89bbaa21a72dda4de is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-16643). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

• quic-go

Version

• 0.50.0

License

• open-source

Website

• Product: https://github.com/quic-go/quic-go/

CPE 2.3info

• 🔍

CPE 2.2info

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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