Vulnerability Description
OpenDMARC through 1.3.2 and 1.4.x through 1.4.0-Beta1 has improper null termination in the function opendmarc_xml_parse that can result in a one-byte heap overflow in opendmarc_xml when parsing a specially crafted DMARC aggregate report. This can cause remote memory corruption when a '\0' byte overwrites the heap metadata of the next chunk and its PREV_INUSE flag.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Trusteddomain | Opendmarc | <= 1.3.2 |
| Fedoraproject | Fedora | 33 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- https://github.com/trusteddomainproject/OpenDMARC/issues/64ExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00026.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202011-02Third Party Advisory
- https://sourceforge.net/projects/opendmarc/ProductThird Party Advisory
- https://github.com/trusteddomainproject/OpenDMARC/issues/64ExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00026.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202011-02Third Party Advisory
- https://sourceforge.net/projects/opendmarc/ProductThird Party Advisory
FAQ
What is CVE-2020-12460?
CVE-2020-12460 is a vulnerability with a CVSS score of 9.8 (CRITICAL). OpenDMARC through 1.3.2 and 1.4.x through 1.4.0-Beta1 has improper null termination in the function opendmarc_xml_parse that can result in a one-byte heap overflow in opendmarc_xml when parsing a spec...
How severe is CVE-2020-12460?
CVE-2020-12460 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-12460?
Check the references section above for vendor advisories and patch information. Affected products include: Trusteddomain Opendmarc, Fedoraproject Fedora, Debian Debian Linux.