Vulnerability · Published Jul 27, 2020 · Assigned by mitre
CVE-2020-12460
Critical 9.8
In plain English
A critical-severity security flaw in the opendmarc package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.7% (higher than 90% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)3.7%top 10.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | opendmarc | 1.4.0~beta1+dfsg-3 | DEBIAN-CVE-2020-12460 |
| Debian:13 | opendmarc | 1.4.0~beta1+dfsg-3 | DEBIAN-CVE-2020-12460 |
| Debian:14 | opendmarc | 1.4.0~beta1+dfsg-3 | DEBIAN-CVE-2020-12460 |
Affected products (as reported)
References
- https://sourceforge.net/projects/opendmarc/ x_refsource_MISC
- https://github.com/trusteddomainproject/OpenDMARC/issues/64 x_refsource_MISC
- GLSA-202011-02 vendor-advisory, x_refsource_GENTOO
- [debian-lts-announce] 20210425 [SECURITY] [DLA 2639-1] opendmarc security update mailing-list, x_refsource_MLIST
- FEDORA-2021-c1b846164e vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-1ec3c5ed63 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-433e7d72ce vendor-advisory, x_refsource_FEDORA