Bug 2454032
| Summary: | CVE-2026-25833 micropython: buffer underflow in x509_inet_pton_ipv6() [fedora-all] | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Guilherme de Almeida Suckevicz <gsuckevi> |
| Component: | micropython | Assignee: | Charalampos Stratakis <cstratak> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | rawhide | CC: | cstratak, mhroncok, python-packagers-sig |
| Target Milestone: | --- | Keywords: | Security, SecurityTracking |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | {"flaws": ["8c575d6f-2b5f-4055-93af-b48c9b0fa475"]} | ||
| Fixed In Version: | micropython-1.28.0-1.fc45 micropython-1.28.0-1.fc43 micropython-1.28.0-1.fc44 | Doc Type: | --- |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2026-04-11 20:57:18 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: | 2453956 | ||
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Description
Guilherme de Almeida Suckevicz
2026-04-01 20:22:50 UTC
The impact here for micropython is DOS only not RCE as it requires to use a literal IPv6 as the hostname during cert verification. FEDORA-2026-d619d8d077 (micropython-1.28.0-1.fc45) has been submitted as an update to Fedora 45. https://bodhi.fedoraproject.org/updates/FEDORA-2026-d619d8d077 FEDORA-2026-52a9a687f0 (micropython-1.28.0-1.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-52a9a687f0 FEDORA-2026-d619d8d077 (micropython-1.28.0-1.fc45) has been pushed to the Fedora 45 stable repository. If problem still persists, please make note of it in this bug report. FEDORA-2026-29f4f47ade (micropython-1.28.0-1.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-29f4f47ade FEDORA-2026-52a9a687f0 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-2026-52a9a687f0` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-52a9a687f0 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-2026-29f4f47ade 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-2026-29f4f47ade` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-29f4f47ade See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-2026-29f4f47ade (micropython-1.28.0-1.fc43) has been pushed to the Fedora 43 stable repository. If problem still persists, please make note of it in this bug report. FEDORA-2026-52a9a687f0 (micropython-1.28.0-1.fc44) has been pushed to the Fedora 44 stable repository. If problem still persists, please make note of it in this bug report. |