Bug 1905723 (CVE-2020-27824)

Summary:	CVE-2020-27824 openjpeg: global-buffer-overflow read in opj_dwt_calc_explicit_stepsizes()
Product:	[Other] Security Response	Reporter:	Todd Cullum <tcullum>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	jaromir.capik, manisandro, nforro, oliver, rdieter
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	openjpeg 2.4.0	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in OpenJPEG’s encoder in the opj_dwt_calc_explicit_stepsizes() function. This flaw allows an attacker who can supply crafted input to decomposition levels to cause a buffer overflow. The highest threat from this vulnerability is to system availability.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-11-02 18:00:28 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:	1905724, 1905725, 1905726, 1906216
Bug Blocks:	1902194, 1939849

Description Todd Cullum 2020-12-08 22:28:42 UTC

In openjpeg v2.3.1 and prior, if too many decomposition levels are supplied to the encoder, it could cause a global buffer overflow to out-of-bounds read in the opj_dwt_calc_explicit_stepsizes() function.

Reference: https://github.com/uclouvain/openjpeg/issues/1286
Upstream patch: https://github.com/uclouvain/openjpeg/pull/1292/commits/6daf5f3e1ec6eff03b7982889874a3de6617db8d

Comment 1 Todd Cullum 2020-12-08 22:30:57 UTC

Created openjpeg tracking bugs for this issue:

Affects: fedora-all [bug 1905724]


Created openjpeg2 tracking bugs for this issue:

Affects: epel-all [bug 1905726]
Affects: fedora-all [bug 1905725]

Comment 2 Todd Cullum 2020-12-09 00:52:45 UTC

Acknowledgments:

Name: zodf0055980 (SQLab NCTU Taiwan)

Comment 5 errata-xmlrpc 2021-11-09 17:56:20 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:4251 https://access.redhat.com/errata/RHSA-2021:4251