Bug 1444098 – CVE-2017-7868 icu: Heap-buffer overflow in utext_moveIndex32 function

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Bug 1444098 - (CVE-2017-7868) CVE-2017-7868 icu: Heap-buffer overflow in utext_moveIndex32 function

Summary:	CVE-2017-7868 icu: Heap-buffer overflow in utext_moveIndex32 function

Status:	CLOSED DUPLICATE of bug 1444097

Aliases:	CVE-2017-7868

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
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Assigned To:	Red Hat Product Security
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Whiteboard:	impact=moderate,public=20170213,repor...
Keywords:	Security

Depends On:	1444099 1444100 1444101
Blocks:	1444102
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Reported:	2017-04-20 10:45 EDT by Andrej Nemec
Modified:	2017-04-28 02:49 EDT (History)
CC List:	9 users (show)

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Last Closed:	2017-04-28 02:49:43 EDT
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Description Andrej Nemec 2017-04-20 10:45:25 EDT

International Components for Unicode (ICU) for C/C++ has an out-of-bounds write caused by a heap-based buffer overflow related to the utf8TextAccess function in common/utext.cpp and the utext_moveIndex32* function.

References:

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=437

Upstream patch:

http://bugs.icu-project.org/trac/changeset/39671

Comment 1 Andrej Nemec 2017-04-20 10:46:28 EDT

Created icu tracking bugs for this issue:

Affects: fedora-all [bug 1444101]


Created mingw-icu tracking bugs for this issue:

Affects: epel-7 [bug 1444100]
Affects: fedora-all [bug 1444099]

Comment 2 Doran Moppert 2017-04-28 02:48:20 EDT

This is the same vulnerability as CVE-2017-7867 (bug 1444097), though clusterfuzz identified it as different due to a slightly different stack trace when the crash occurred.  Both are addressed by the same patch upstream, which correctly accounts for legacy 6-byte utf8 sequences.

Comment 3 Doran Moppert 2017-04-28 02:49:43 EDT


*** This bug has been marked as a duplicate of bug 1444097 ***

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