Bug 2459283
| Summary: | CVE-2026-40170 ngtcp2: ngtcp2: Denial of service via stack buffer overflow during QUIC handshake [fedora-all] | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Marco Benatto <mbenatto> |
| Component: | ngtcp2 | Assignee: | Petr Menšík <pemensik> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | rawhide | CC: | asn, crypto-team, dns-sig, pemensik |
| Target Milestone: | --- | Keywords: | Security, SecurityTracking |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | {"flaws": ["443e0f07-54d3-45d9-99ce-47b2ca786efc"]} | ||
| Fixed In Version: | ngtcp2-1.22.1-1.fc43 ngtcp2-1.22.1-1.fc44 | Doc Type: | --- |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2026-04-28 00:59:16 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 2459061 | ||
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Description
Marco Benatto
2026-04-17 20:15:13 UTC
FEDORA-2026-705eb9cf95 (ngtcp2-1.22.1-1.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-705eb9cf95 FEDORA-2026-a0f25484e9 (ngtcp2-1.22.1-1.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-a0f25484e9 FEDORA-2026-a0f25484e9 has been pushed to the Fedora 43 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-a0f25484e9` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-a0f25484e9 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-2026-705eb9cf95 has been pushed to the Fedora 44 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-705eb9cf95` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-705eb9cf95 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-2026-a0f25484e9 (ngtcp2-1.22.1-1.fc43) has been pushed to the Fedora 43 stable repository. If problem still persists, please make note of it in this bug report. FEDORA-2026-705eb9cf95 (ngtcp2-1.22.1-1.fc44) has been pushed to the Fedora 44 stable repository. If problem still persists, please make note of it in this bug report. |