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CVE-2020-12460

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-6356-1
Posted Sep 11, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6356-1 - Jianjun Chen, Vern Paxson and Jian Jiang discovered that OpenDMARC incorrectly handled certain inputs. If a user or an automated system were tricked into receiving crafted inputs, an attacker could possibly use this to falsify the domain of an e-mails origin. Patrik Lantz discovered that OpenDMARC incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2020-12272, CVE-2020-12460
SHA-256 | 397617573124b6190a856cbe4e1d18377ed64756305273ac07c06cf6567c0f3e
Gentoo Linux Security Advisory 202011-02
Posted Nov 3, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202011-2 - A heap-based buffer overflow in OpenDMARC might allow remote attackers to execute arbitrary code. Versions less than 1.3.3 are affected.

tags | advisory, remote, overflow, arbitrary
systems | linux, gentoo
advisories | CVE-2020-12460
SHA-256 | 2959de287cc0da7bc11211121709d5c537d8f322b3aeb6aea3987a3752186261
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