9.8

CVE-2021-20314

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Libspf2 ≫ Libspf2 Version < 1.2.11
Redhat ≫ Enterprise Linux Version 7.0
Fedoraproject ≫ Fedora Version 33
Fedoraproject ≫ Fedora Version 34
Fedoraproject ≫ Fedora Version 35
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 2.81% 0.847
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NIST 7.5 10 6.4
AV:N/AC:L/Au:N/C:P/I:P/A:P
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://bugzilla.redhat.com/show_bug.cgi?id=1993070
Patch
Third Party Advisory
Issue Tracking
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMSFT2NJDZ7PATRZSQPAOGSE7JD6ELOB/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJRHPE5OSCPTNA3ZZ4ORDHT4JQH3Y4/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y6T4HYXXSUQCGJB2ES6X7Q74YYF7V7XU/
https://security.gentoo.org/glsa/202401-22