Bug 1907513 (CVE-2020-27842) - CVE-2020-27842 openjpeg: null pointer dereference in opj_tgt_reset function in lib/openjp2/tgt.c
Summary: CVE-2020-27842 openjpeg: null pointer dereference in opj_tgt_reset function i...
Keywords:
Status: NEW
Alias: CVE-2020-27842
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1907679 1907680 1908165 1907681 1907682
Blocks: 1906158 1907565
TreeView+ depends on / blocked
 
Reported: 2020-12-14 16:38 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-02-22 18:35 UTC (History)
6 users (show)

Fixed In Version: openjpeg 2.4.0
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in OpenJPEG’s t2 encoder. This flaw allows an attacker who can provide crafted input to be processed by OpenJPEG to cause a NULL pointer dereference issue. The highest threat to this vulnerability is to system availability.
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Description Guilherme de Almeida Suckevicz 2020-12-14 16:38:44 UTC 
A flaw was found in OpenJPEG. Specially crafted file can lead to an out-of-bounds read in opj_tgt_reset function in lib/openjp2/tgt.c.

Reference:
https://github.com/uclouvain/openjpeg/issues/1294
Comment 1 Todd Cullum 2020-12-15 01:30:07 UTC 
Acknowledgments:

Name: zodf0055980 (SQLab NCTU Taiwan)
Comment 2 Todd Cullum 2020-12-15 01:35:05 UTC 
Created mingw-openjpeg2 tracking bugs for this issue:

Affects: fedora-all [bug 1907682]


Created openjpeg tracking bugs for this issue:

Affects: fedora-all [bug 1907680]


Created openjpeg2 tracking bugs for this issue:

Affects: epel-7 [bug 1907679]
Affects: fedora-all [bug 1907681]
Comment 3 Todd Cullum 2020-12-15 01:41:47 UTC 
Upstream commit: https://github.com/uclouvain/openjpeg/pull/1296/commits/fbd30b064f8f9607d500437b6fedc41431fd6cdc
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