CVE-2020-12460
opendmarc - security update
9.8
CRITICAL
CVSS 3.1
EPSS 14.6%
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.
How to fix CVE-2020-12460
To remediate CVE-2020-12460, upgrade the affected package to a fixed version below.
- —upgrade to 1.4.0~beta1+dfsg-3 or later
- —upgrade to 1.3.2-2+deb9u3 or later
Is CVE-2020-12460 being exploited?
Moderate — EPSS is 14.6%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (2)
- from 0, < 1.4.0~beta1+dfsg-3
- from 0, < 1.3.2-2+deb9u3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |