Bug 2463395
| Summary: | CVE-2026-40356 krb5: MIT Kerberos 5 (krb5): Denial of Service via integer underflow and out-of-bounds read [fedora-all] | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Sandipan Roy <saroy> |
| Component: | krb5 | Assignee: | Julien Rische <jrische> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | rawhide | CC: | abokovoy, antorres, ftrivino, jrische, j, sbose, ssorce |
| Target Milestone: | --- | Keywords: | Security, SecurityTracking |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | {"flaws": ["4c8a4281-6bd4-4382-820c-7f9fa852732a"]} | ||
| Fixed In Version: | krb5-1.22.2-7.fc45 krb5-1.22.2-4.fc44 krb5-1.22.2-4.fc43 krb5-1.21.3-7.fc42 | Doc Type: | --- |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2026-04-29 15:53:55 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: | 2463368 | ||
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Description
Sandipan Roy
2026-04-28 08:49:53 UTC
FEDORA-2026-2e9fe57a46 (krb5-1.22.2-7.fc45) has been submitted as an update to Fedora 45. https://bodhi.fedoraproject.org/updates/FEDORA-2026-2e9fe57a46 FEDORA-2026-8b43ea2f82 (krb5-1.22.2-4.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-8b43ea2f82 FEDORA-2026-684396998a (krb5-1.22.2-4.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-684396998a FEDORA-2026-6c99aaa6d3 (krb5-1.21.3-7.fc42) has been submitted as an update to Fedora 42. https://bodhi.fedoraproject.org/updates/FEDORA-2026-6c99aaa6d3 FEDORA-2026-2e9fe57a46 (krb5-1.22.2-7.fc45) has been pushed to the Fedora 45 stable repository. If problem still persists, please make note of it in this bug report. FEDORA-2026-684396998a 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-2026-684396998a` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-684396998a See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-2026-8b43ea2f82 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-2026-8b43ea2f82` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-8b43ea2f82 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-2026-6c99aaa6d3 has been pushed to the Fedora 42 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-6c99aaa6d3` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-6c99aaa6d3 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-2026-8b43ea2f82 (krb5-1.22.2-4.fc44) has been pushed to the Fedora 44 stable repository. If problem still persists, please make note of it in this bug report. FEDORA-2026-684396998a (krb5-1.22.2-4.fc43) has been pushed to the Fedora 43 stable repository. If problem still persists, please make note of it in this bug report. FEDORA-2026-6c99aaa6d3 (krb5-1.21.3-7.fc42) has been pushed to the Fedora 42 stable repository. If problem still persists, please make note of it in this bug report. |