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From: "yangdingning at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs-regex@sources.redhat.com
Subject: [Bug regex/12896] New: regexec() stack overflow denial of service
Date: Thu, 16 Jun 2011 03:07:00 -0000 [thread overview]
Message-ID: <bug-12896-132@http.sourceware.org/bugzilla/> (raw)
http://sourceware.org/bugzilla/show_bug.cgi?id=12896
Summary: regexec() stack overflow denial of service
Product: glibc
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: regex
AssignedTo: drepper.fsp@gmail.com
ReportedBy: yangdingning@gmail.com
An easy way to reproduce is:
$ echo | grep -E "(.*)\1{4}+"
Segmentation fault (core dumped)
$
This bug has been verified to exist in glibc 2.11.1 shipped with Ubuntu 10.04,
as well as the latest version from git repository. It may have security
implications as shown in the description of CVE-2010-4051 and CVE-2010-4052.
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next reply other threads:[~2011-06-16 3:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-16 3:07 yangdingning at gmail dot com [this message]
2011-06-18 13:20 ` [Bug regex/12896] " bonzini at gnu dot org
2014-06-13 10:56 ` fweimer at redhat dot com
2014-06-19 14:45 ` fweimer at redhat dot com
2015-02-24 11:58 ` fweimer at redhat dot com
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