Ava-691: Golang DoS vulnerability in HTTP/2 connection closing

Release Date

16th November 2022.

Overview

he minor releases 1.19.1 and 1.18.6 of Golang include a fix for a security bug that potentially affects Ava Aware, and could result in a denial of service. The bug lies in the handling of closing HTTP/2 connections that could hang forever if waiting for a clean shutdown preempted by a subsequent fatal error.

Affected Products

  • Ava Aware:
    • All Stable upgrade channel versions before 5.3.4.
    • All Beta upgrade channel versions before 5.3.0.

Unaffected Products

  • Ava Aware:
    • All Stable upgrade channel versions after and including 5.3.4.
    • All Beta upgrade channel versions after and including 5.3.0.

Resolution

This issue has been fixed in Ava Aware Beta upgrade channel version 5.3.4 and Stable upgrade channel version 5.3.0. ​ It is recommended that all installations running an affected version are upgraded to the latest release as soon as possible. Releases are available to download through the Ava Aware User Interface.

Vulnerability Information

Mitigations

There are no known mitigations for this issue.

Work arounds

There are no known work arounds for this issue.

Acknowledgements

Issue reported by The Go Team.

Disclosure Timeline

  • 07/09/2022 Issue found (by The Go Team)
  • 06/09/2022 Root cause established
  • 07/09/2022 Fix identified
  • 15/09/2022 Patched Ava Aware (Beta upgrade channel) released
  • 06/10/2022 Patched Ava Aware (Stable upgrade channel) released
  • 16/11/2022 Vulnerability publicly disclosed