NULL Pointer Dereference Affecting github.com/quic-go/quic-go/internal/ackhandler package, versions >=0.50.0 <0.50.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMQUICGOQUICGOINTERNALACKHANDLER-10292486
- published2 Jun 2025
- disclosed2 Jun 2025
- creditthuc98
Introduced: 2 Jun 2025
NewCVE-2025-29785 (opens in a new tab)How to fix?
Upgrade github.com/quic-go/quic-go/internal/ackhandler to version 0.50.1 or higher.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference via the loss recovery logic for path probe packets. An attacker can trigger a nil-pointer dereference by sending valid QUIC packets from different remote addresses, thereby initiating the path validation logic added in the v0.50.0 release which causes the server to send path probe packets, followed by sending specifically crafted ACKs for packets received from the server.