CVE-2020-12460 — Out-of-bounds Write in Opendmarc

CWE-787 — Out-of-bounds Write9 documents6 sources
Severity
9.8CRITICALNVD
OSV5.3
EPSS
14.6%
top 5.50%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Trusteddomain OpendmarcDebian OpendmarcDebian Linux+1 more
Timeline
PublishedJul 27
Latest updateSep 11

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 vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages4 packages

▶debiandebian/opendmarc< opendmarc 1.4.0~beta1+dfsg-3 (bookworm)
▶Debiantrusteddomain/opendmarc< 1.4.0~beta1+dfsg-3+3
▶Ubuntutrusteddomain/opendmarc< 1.3.2-3ubuntu0.2+2

Also affects: Debian Linux 9.0, Fedora 33, 34

🔴Vulnerability Details

3
OSV
opendmarc vulnerabilities↗2023-09-11
▶
GHSA
GHSA-8c3p-8wh2-8ggf: OpenDMARC through 1↗2022-05-24
▶
OSV
CVE-2020-12460: OpenDMARC through 1↗2020-07-27
▶

📋Vendor Advisories

2
Ubuntu
OpenDMARC vulnerabilities↗2023-09-11
▶
Debian
CVE-2020-12460: opendmarc - OpenDMARC through 1.3.2 and 1.4.x through 1.4.0-Beta1 has improper null terminat...↗2020
▶

💬Community

3
Bugzilla
CVE-2020-12460 OpenDMARC: improper null termination in function opendmarc_xml_parse leads to heap-buffer overflow↗2020-07-30
▶
Bugzilla
CVE-2020-12460 opendmarc: improper null termination in function opendmarc_xml_parse leads to heap-buffer overflow [fedora-all]↗2020-07-30
▶
Bugzilla
CVE-2020-12460 opendmarc: improper null termination in function opendmarc_xml_parse leads to heap-buffer overflow [epel-all]↗2020-07-30
▶
CVE-2020-12460 — Out-of-bounds Write in Opendmarc | cvebase