Bug 1861991 (CVE-2020-12460) - CVE-2020-12460 OpenDMARC: improper null termination in function opendmarc_xml_parse leads to heap-buffer overflow
Summary: CVE-2020-12460 OpenDMARC: improper null termination in function opendmarc_xml...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2020-12460
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
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Depends On: 1861992 1861993
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-07-30 05:46 UTC by Dhananjay Arunesh
Modified: 2020-07-30 07:27 UTC (History)
2 users (show)

Fixed In Version:
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Last Closed: 2020-07-30 07:27:56 UTC
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Description Dhananjay Arunesh 2020-07-30 05:46:36 UTC 
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.

References:
https://github.com/trusteddomainproject/OpenDMARC/issues/64
https://sourceforge.net/projects/opendmarc/
Comment 1 Dhananjay Arunesh 2020-07-30 05:47:14 UTC 
Created opendmarc tracking bugs for this issue:

Affects: epel-all [bug 1861993]
Affects: fedora-all [bug 1861992]
Comment 2 Product Security DevOps Team 2020-07-30 07:27:56 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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