SB2023091161 - Ubuntu update for opendmarc

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Main Vulnerability Database SB2023091161

SB2023091161 - Ubuntu update for opendmarc

Published: September 11, 2023

Security Bulletin ID SB2023091161
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Medium 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Authentication Bypass by Spoofing (CVE-ID: CVE-2020-12272)

The vulnerability allows a remote non-authenticated attacker to manipulate data.

OpenDMARC through 1.3.2 and 1.4.x allows attacks that inject authentication results to provide false information about the domain that originated an e-mail message. This is caused by incorrect parsing and interpretation of SPF/DKIM authentication results, as demonstrated by the example.net(.example.com substring.


2) Out-of-bounds write (CVE-ID: CVE-2020-12460)

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.


Remediation

Install update from vendor's website.

References