Bug 1790059 (CVE-2019-5064)

Summary:	CVE-2019-5064 opencv: Heap buffer overflow in persistence_json.cpp while parsing crafted JSON file
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	andrew, databases-maint, hhorak, jkucera, jmlich83, jridky, karlthered, kwizart, pkajaba, rakesh.pandit, sergio, viktor.vix.jancik
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	opencv 4.2.0	Doc Type:	If docs needed, set a value
Doc Text:	A heap buffer overflow vulnerability was found in the data structure persistence functionality of OpenCV. Specifically, a specially crafted JSON file could cause a buffer overflow, resulting in multiple heap corruptions and potential code execution. A remote attacker could exploit this flaw by providing a specially crafted JSON file to trigger this vulnerability.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-04-20 16:31:51 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1790060
Bug Blocks:	1790061

Description Pedro Sampaio 2020-01-11 15:05:56 UTC

An exploitable heap buffer overflow vulnerability exists in the data structure persistence functionality of OpenCV, version 4.1.0. A specially crafted JSON file can cause a buffer overflow, resulting in multiple heap corruptions and potentially code execution. An attacker can provide a specially crafted file to trigger this vulnerability.

References:

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0853

Comment 1 Pedro Sampaio 2020-01-11 15:06:16 UTC

Created opencv tracking bugs for this issue:

Affects: fedora-all [bug 1790060]

Comment 2 Mauro Matteo Cascella 2020-04-20 10:14:58 UTC

External References:

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0853

Comment 3 Mauro Matteo Cascella 2020-04-20 13:08:40 UTC

Mitigation:

Avoid loading OpenCV data structures from external untrusted JSON files.

Comment 5 Mauro Matteo Cascella 2020-04-20 13:27:49 UTC

Statement:

This flaw did not affect the versions of OpenCV as shipped with Red Hat Enterprise Linux 6, 7, and 8, as they did not include the vulnerable code, which was introduced in a later version of the library.

Comment 6 Mauro Matteo Cascella 2020-04-20 13:54:46 UTC

Upstream fix:
https://github.com/opencv/opencv/commit/f42d5399aac80d371b17d689851406669c9b9111

Comment 7 Product Security DevOps Team 2020-04-20 16:31:51 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-5064