Upstream information

CVE-2025-59530 at MITRE

Description

quic-go is an implementation of the QUIC protocol in Go. In versions prior to 0.49.0, 0.54.1, and 0.55.0, a misbehaving or malicious server can cause a denial-of-service (DoS) attack on the quic-go client by triggering an assertion failure, leading to a process crash. This requires no authentication and can be exploited during the handshake phase. This was observed in the wild with certain server implementations. quic-go needs to be able to handle misbehaving server implementations, including those that prematurely send a HANDSHAKE_DONE frame. Versions 0.49.0, 0.54.1, and 0.55.0 discard Initial keys when receiving a HANDSHAKE_DONE frame, thereby correctly handling premature HANDSHAKE_DONE frames.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v3 Scores
CVSS detail CNA (GitHub)
Base Score 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3.1
No SUSE Bugzilla entries cross referenced.

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • govulncheck-vulndb >= 0.0.20251105T184115-1.1
  • teleport >= 17.7.10-1.1
  • teleport-bash-completion >= 17.7.10-1.1
  • teleport-fdpass-teleport >= 17.7.10-1.1
  • teleport-tbot >= 17.7.10-1.1
  • teleport-tbot-bash-completion >= 17.7.10-1.1
  • teleport-tbot-zsh-completion >= 17.7.10-1.1
  • teleport-tctl >= 17.7.10-1.1
  • teleport-tctl-bash-completion >= 17.7.10-1.1
  • teleport-tctl-zsh-completion >= 17.7.10-1.1
  • teleport-tsh >= 17.7.10-1.1
  • teleport-tsh-bash-completion >= 17.7.10-1.1
  • teleport-tsh-zsh-completion >= 17.7.10-1.1
  • teleport-zsh-completion >= 17.7.10-1.1
 Patchnames:
openSUSE-Tumbleweed-2025-15710
openSUSE-Tumbleweed-2025-15737

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Server 16.1 govulncheck-vulndb Released
SUSE Linux Enterprise Server for SAP applications 16.1 govulncheck-vulndb Released

SUSE Timeline for this CVE

CVE page created: Fri Oct 10 20:00:53 2025
CVE page last modified: Sat Aug 1 11:26:11 2026