Bug 1629955 (CVE-2018-16982) - CVE-2018-16982 opencc: out-of-bounds keyOffset and valueOffset values in BinaryDict::NewFromFile in BinaryDict.cpp
Summary: CVE-2018-16982 opencc: out-of-bounds keyOffset and valueOffset values in Bina...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-16982
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: 1629957
Blocks: 1629958
TreeView+ depends on / blocked
 
Reported: 2018-09-17 17:10 UTC by Pedro Sampaio
Modified: 2021-02-16 23:02 UTC (History)
2 users (show)

Fixed In Version:
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Last Closed: 2019-06-10 10:38:04 UTC
Embargoed:

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Description Pedro Sampaio 2018-09-17 17:10:04 UTC 
Open Chinese Convert (OpenCC) 1.0.5 allows attackers to cause a denial of service (segmentation fault) because BinaryDict::NewFromFile in BinaryDict.cpp may have out-of-bounds keyOffset and valueOffset values via a crafted .ocd file.

Upstream issue:

https://github.com/BYVoid/OpenCC/issues/303
Comment 2 Stefan Cornelius 2018-11-12 12:38:07 UTC 
In version 0.4.3, the code is quite different. The PoCs can still crash the opencc_dict binary, but it's at a different location and does not seem to pose a security risk.
Comment 3 Stefan Cornelius 2018-11-12 12:38:15 UTC 
Statement:

This issue did not affect the versions of opencc as shipped with Red Hat Enterprise Linux 7.
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