Vulnerability identifier: #VU34050
Vulnerability risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-787
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
OpenDMARC
Universal components / Libraries /
Libraries used by multiple products
Vendor: Trusted Domain Project
Description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
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 '�' byte overwrites the heap metadata of the next chunk and its PREV_INUSE flag.
Mitigation
Install update from vendor's website.
Vulnerable software versions
OpenDMARC: 1.3.2 - 1.3.3
External links
http://github.com/trusteddomainproject/OpenDMARC/issues/64
http://github.com/trusteddomainproject/OpenDMARC/blob/master/SECURITY/CVE-2020-12460
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.