CVE catalog

CVE-2020-12460

opendmarc: CVE-2020-12460

Severity: Medium
Published: Jul 27, 2020, 11:15:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 3.68% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	opendmarc	sid	`1.4.2-5.1`	fixed
Debian	opendmarc	forky	`1.4.2-5.1`	fixed
Debian	opendmarc	trixie	`1.4.2-5`	fixed
Debian	opendmarc	bookworm	`1.4.2-2`	fixed
Ubuntu	opendmarc	pro	`1.3.1+dfsg-2`	vulnerable
Ubuntu	opendmarc	pro	`1.3.1+dfsg-3`	vulnerable
Ubuntu	opendmarc	pro	`1.3.1+dfsg-3ubuntu0.1~esm1`	fixed
Ubuntu	opendmarc	18.04	`1.3.2-2`	vulnerable
Ubuntu	opendmarc	18.04	`1.3.2-3`	vulnerable
Ubuntu	opendmarc	18.04	`1.3.2-3ubuntu0.1`	vulnerable
Ubuntu	opendmarc	18.04	`1.3.2-3ubuntu0.2`	fixed
Ubuntu	opendmarc	20.04	`1.3.2-6`	vulnerable
Ubuntu	opendmarc	20.04	`1.3.2-7`	vulnerable
Ubuntu	opendmarc	20.04	`1.3.2-7ubuntu0.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	opendmarc	source	sid	`1.4.0~beta1+dfsg-3`	not yet assigned	Not reported	[966464]
Debian	opendmarc	source	forky	`1.4.0~beta1+dfsg-3`	not yet assigned	Not reported	[966464]
Debian	opendmarc	source	trixie	`1.4.0~beta1+dfsg-3`	not yet assigned	Not reported	[966464]
Debian	opendmarc	source	bookworm	`1.4.0~beta1+dfsg-3`	not yet assigned	Not reported	[966464]
Ubuntu	opendmarc	deb	pro	`1.3.1+dfsg-3ubuntu0.1~esm1`	Not reported	UBUNTU-CVE-2020-12460	Not reported
Ubuntu	opendmarc	deb	18.04	`1.3.2-3ubuntu0.2`	Not reported	UBUNTU-CVE-2020-12460	Not reported
Ubuntu	opendmarc	deb	20.04	`1.3.2-7ubuntu0.1`	Not reported	UBUNTU-CVE-2020-12460	Not reported

[Debian bug #966464]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libopendmarc2]Fixed
Source package: [opendmarc]
Details (2)
- 1.4.2-2+b1 · amd64 · bookworm
  Fixed · Fixed: 1.4.0~beta1+dfsg-3
  dsa · opendmarc · debian · bookworm; dsa · opendmarc · debian · 12
- 1.4.2-2+b1 · arm64 · bookworm
  Fixed · Fixed: 1.4.0~beta1+dfsg-3
  dsa · opendmarc · debian · bookworm; dsa · opendmarc · debian · 12
[libopendmarc-dev]Fixed
Source package: [opendmarc]
Details (2)
- 1.4.2-2+b1 · amd64 · bookworm
  Fixed · Fixed: 1.4.0~beta1+dfsg-3
  dsa · opendmarc · debian · bookworm; dsa · opendmarc · debian · 12
- 1.4.2-2+b1 · arm64 · bookworm
  Fixed · Fixed: 1.4.0~beta1+dfsg-3
  dsa · opendmarc · debian · bookworm; dsa · opendmarc · debian · 12
[opendmarc]Fixed
Source package: [opendmarc]
Details (2)
- 1.4.2-2+b1 · amd64 · bookworm
  Fixed · Fixed: 1.4.0~beta1+dfsg-3
  dsa · opendmarc · debian · bookworm; dsa · opendmarc · debian · 12
- 1.4.2-2+b1 · arm64 · bookworm
  Fixed · Fixed: 1.4.0~beta1+dfsg-3
  dsa · opendmarc · debian · bookworm; dsa · opendmarc · debian · 12

[Debian 13 (Trixie)]

[libopendmarc2t64]Fixed
Source package: [opendmarc]
Details (2)
- 1.4.2-5 · amd64 · trixie
  Fixed · Fixed: 1.4.0~beta1+dfsg-3
  dsa · opendmarc · debian · 13
- 1.4.2-5 · arm64 · trixie
  Fixed · Fixed: 1.4.0~beta1+dfsg-3
  dsa · opendmarc · debian · 13
[libopendmarc-dev]Fixed
Source package: [opendmarc]
Details (2)
- 1.4.2-5 · amd64 · trixie
  Fixed · Fixed: 1.4.0~beta1+dfsg-3
  dsa · opendmarc · debian · 13
- 1.4.2-5 · arm64 · trixie
  Fixed · Fixed: 1.4.0~beta1+dfsg-3
  dsa · opendmarc · debian · 13
[opendmarc]Fixed
Details (2)
- 1.4.2-5 · amd64 · trixie
  Fixed · Fixed: 1.4.0~beta1+dfsg-3
  dsa · opendmarc · debian · 13
- 1.4.2-5 · arm64 · trixie
  Fixed · Fixed: 1.4.0~beta1+dfsg-3
  dsa · opendmarc · debian · 13

Observed: Oct 23, 2026, 5:47:19 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]