CVE-2013-0252: Input Validation
First published: Mon Feb 04 2013(Updated: )
A security flaw was found in the way UTF-8 decoder of boost, set of free peer-reviewed portable C++ source libraries, performed validation of certain UTF-8 encoded sequences. If an application, linked against boost used the UTF-8 decoding routines for input validation (and depended at the results), an attacker could use this flaw to confuse the validator into (errorneously) accepting them as valid. Upstream bug report: [1] <a href="https://svn.boost.org/trac/boost/ticket/7743">https://svn.boost.org/trac/boost/ticket/7743</a> Upstream advisory: [2] <a href="http://www.boost.org/users/news/boost_locale_security_notice.html">http://www.boost.org/users/news/boost_locale_security_notice.html</a> Relevant upstream patch: [3] <a href="http://cppcms.com/files/locale/boost_locale_utf.patch">http://cppcms.com/files/locale/boost_locale_utf.patch</a> References: [4] <a href="http://www.openwall.com/lists/oss-security/2013/02/04/1">http://www.openwall.com/lists/oss-security/2013/02/04/1</a> [5] <a href="http://www.openwall.com/lists/oss-security/2013/02/04/2">http://www.openwall.com/lists/oss-security/2013/02/04/2</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Boost C++ Libraries | =1.48.0 | |
| Boost C++ Libraries | =1.49.0 | |
| Boost C++ Libraries | =1.50.0 | |
| Boost C++ Libraries | =1.51.0 | |
| Boost C++ Libraries | =1.52.0 |
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Reference Links
- https://svn.boost.org/trac/boost/ticket/7743
- http://www.boost.org/users/news/boost_locale_security_notice.html
- http://cppcms.com/files/locale/boost_locale_utf.patch
- http://www.openwall.com/lists/oss-security/2013/02/04/1
- http://www.openwall.com/lists/oss-security/2013/02/04/2
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=907482
- https://bugzilla.redhat.com/show_bug.cgi?id=907481
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=699649
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=699650
- http://lists.fedoraproject.org/pipermail/package-announce/2013-February/099103.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-February/099122.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:065
- http://www.securityfocus.com/bid/57675
- http://www.ubuntu.com/usn/USN-1727-1
Frequently Asked Questions
What is the severity of CVE-2013-0252?
CVE-2013-0252 has been classified as a medium severity vulnerability due to its potential impact on applications relying on improper UTF-8 input validation.
How do I fix CVE-2013-0252?
To fix CVE-2013-0252, you should update your Boost library to version 1.53.0 or later, where the vulnerability has been addressed.
What versions of Boost are affected by CVE-2013-0252?
CVE-2013-0252 affects Boost versions 1.48.0 through 1.52.0.
How does CVE-2013-0252 impact applications?
Applications linked against vulnerable versions of Boost may misinterpret UTF-8 encoded sequences, leading to potential security risks.
Is it safe to use Boost versions earlier than 1.53.0 after CVE-2013-0252?
It is unsafe to use Boost versions earlier than 1.53.0, as they are susceptible to the vulnerabilities outlined in CVE-2013-0252.
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