Bug 2466488 (CVE-2026-43964)
| Summary: | CVE-2026-43964 postfix: buffer over-read via malformed enhanced status code | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | rhel-process-autobot, watson-tool-maintainers, yozone |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in Postfix. This issue occurs when processing enhanced status codes, specifically an enhanced status code that lacks text following the third number. Depending on the configuration of the server, this allows a remote attacker to cause a buffer over-read of only 1 byte, leading to an application crash and resulting in a denial of service.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 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: | 2477885 | ||
| Bug Blocks: | |||
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Description
OSIDB Bzimport
2026-05-04 19:01:49 UTC
This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2026:25930 https://access.redhat.com/errata/RHSA-2026:25930 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2026:25932 https://access.redhat.com/errata/RHSA-2026:25932 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2026:26205 https://access.redhat.com/errata/RHSA-2026:26205 |