vulnerability
Arch Linux: Denial of service (CVE-2021-34555)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Jun 10, 2021 | Jul 11, 2025 | Feb 9, 2026 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Jun 10, 2021
Added
Jul 11, 2025
Modified
Feb 9, 2026
Description
OpenDMARC 1.4.1 and 1.4.1.1 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a multi-value From header field.
Solution
arch-linux-upgrade-latest
References
- CVE-2021-34555
- https://attackerkb.com/topics/CVE-2021-34555
- URL-https://github.com/trusteddomainproject/OpenDMARC/issues/179
- URL-https://github.com/trusteddomainproject/OpenDMARC/pull/178
- URL-https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MAT4ZSWPQ5SUTMYCXRXI5SMTWL4AG7E/
- URL-https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZHZD4WZDYRBB2XVW2EQ4DQ2KYMAGPUO/
- CWE-476
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