CVEvulnerability

CVE-2021-20314

9.8 CRITICAL Published 2021-08-12 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-08-12
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-787

Description

Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages.

Affected configurations

• libspf2 libspf2 (< 1.2.11) • redhat enterprise linux 7.0 • fedoraproject fedora 33 • fedoraproject fedora 34 • fedoraproject fedora 35

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References