Bug 1985253 (CVE-2021-37220) - CVE-2021-37220 mupdf: out-of-bounds write because the cached color converter does not properly consider the maximum key size of a hash table
Summary: CVE-2021-37220 mupdf: out-of-bounds write because the cached color converter ...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-37220
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: 1985254
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-07-23 09:04 UTC by Marian Rehak
Modified: 2021-07-23 09:55 UTC (History)
1 user (show)

Fixed In Version:
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Environment:
Last Closed: 2021-07-23 09:55:11 UTC

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Description Marian Rehak 2021-07-23 09:04:21 UTC 
MuPDF through 1.18.1 has an out-of-bounds write because the cached color converter does not properly consider the maximum key size of a hash table. This can, for example, be seen with crafted "mutool draw" input.

Reference:

https://bugs.ghostscript.com/show_bug.cgi?id=703791
http://git.ghostscript.com/?p=mupdf.git;h=f5712c9949d026e4b891b25837edd2edc166151f
Comment 1 Marian Rehak 2021-07-23 09:04:57 UTC 
Created mupdf tracking bugs for this issue:

Affects: fedora-all [bug 1985254]
Comment 2 Product Security DevOps Team 2021-07-23 09:55:11 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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