CVE-2006-7225: Input Validation
First published: Thu Nov 15 2007(Updated: )
From pcre changelog, version 6.7: 18. A valid (though odd) pattern that looked like a POSIX character class but used an invalid character after [ (for example [[,abc,]]) caused pcre_compile() to give the error "Failed: internal error: code overflow" or in some cases to crash with a glibc free() error. This could even happen if the pattern terminated after [[ but there just happened to be a sequence of letters, a binary zero, and a closing ] in the memory that followed. Acknowledgements: Red Hat would like to thank Ludwig Nussel for reporting this issue.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PCRE (Perl Compatible Regular Expressions) | =2.01 | |
| PCRE (Perl Compatible Regular Expressions) | =4.0 | |
| PCRE (Perl Compatible Regular Expressions) | =5.0 | |
| PCRE (Perl Compatible Regular Expressions) | =0.99 | |
| PCRE (Perl Compatible Regular Expressions) | =0.94 | |
| PCRE (Perl Compatible Regular Expressions) | =4.5 | |
| PCRE (Perl Compatible Regular Expressions) | =3.7 | |
| PCRE (Perl Compatible Regular Expressions) | =3.6 | |
| PCRE (Perl Compatible Regular Expressions) | =3.3 | |
| PCRE (Perl Compatible Regular Expressions) | =1.04 | |
| PCRE (Perl Compatible Regular Expressions) | =2.06 | |
| PCRE (Perl Compatible Regular Expressions) | =3.5 | |
| PCRE (Perl Compatible Regular Expressions) | =4.2 | |
| PCRE (Perl Compatible Regular Expressions) | =0.98 | |
| PCRE (Perl Compatible Regular Expressions) | =1.00 | |
| PCRE (Perl Compatible Regular Expressions) | =0.93 | |
| PCRE (Perl Compatible Regular Expressions) | =2.04 | |
| PCRE (Perl Compatible Regular Expressions) | =6.3 | |
| PCRE (Perl Compatible Regular Expressions) | =2.03 | |
| PCRE (Perl Compatible Regular Expressions) | =1.02 | |
| PCRE (Perl Compatible Regular Expressions) | =1.08 | |
| PCRE (Perl Compatible Regular Expressions) | =1.01 | |
| PCRE (Perl Compatible Regular Expressions) | =6.1 | |
| PCRE (Perl Compatible Regular Expressions) | =0.97 | |
| PCRE (Perl Compatible Regular Expressions) | =3.9 | |
| PCRE (Perl Compatible Regular Expressions) | =1.05 | |
| PCRE (Perl Compatible Regular Expressions) | =6.0 | |
| PCRE (Perl Compatible Regular Expressions) | =0.96 | |
| PCRE (Perl Compatible Regular Expressions) | =2.08 | |
| PCRE (Perl Compatible Regular Expressions) | =1.03 | |
| PCRE (Perl Compatible Regular Expressions) | =0.92 | |
| PCRE (Perl Compatible Regular Expressions) | =6.5 | |
| PCRE (Perl Compatible Regular Expressions) | =6.6 | |
| PCRE (Perl Compatible Regular Expressions) | =4.4 | |
| PCRE (Perl Compatible Regular Expressions) | =4.1 | |
| PCRE (Perl Compatible Regular Expressions) | =0.91 | |
| PCRE (Perl Compatible Regular Expressions) | =3.8 | |
| PCRE (Perl Compatible Regular Expressions) | =6.2 | |
| PCRE (Perl Compatible Regular Expressions) | =3.2 | |
| PCRE (Perl Compatible Regular Expressions) | =2.05 | |
| PCRE (Perl Compatible Regular Expressions) | =1.07 | |
| PCRE (Perl Compatible Regular Expressions) | =1.06 | |
| PCRE (Perl Compatible Regular Expressions) | =3.4 | |
| PCRE (Perl Compatible Regular Expressions) | =3.0 | |
| PCRE (Perl Compatible Regular Expressions) | =0.95 | |
| PCRE (Perl Compatible Regular Expressions) | =2.02 | |
| PCRE (Perl Compatible Regular Expressions) | =6.4 | |
| PCRE (Perl Compatible Regular Expressions) | =3.1 | |
| PCRE (Perl Compatible Regular Expressions) | =1.09 | |
| PCRE (Perl Compatible Regular Expressions) | =2.07 | |
| PCRE (Perl Compatible Regular Expressions) | =4.3 | |
| PCRE (Perl Compatible Regular Expressions) | =2.0 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=384761
- http://www.pcre.org/changelog.txt
- http://www.redhat.com/support/errata/RHSA-2007-1059.html
- http://www.redhat.com/support/errata/RHSA-2007-1068.html
- http://www.securityfocus.com/bid/26725
- http://support.avaya.com/elmodocs2/security/ASA-2007-505.htm
- http://secunia.com/advisories/28041
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:030
- http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html
- http://secunia.com/advisories/28658
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10985
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=259901&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=259901&action=edit
- http://rhn.redhat.com/errata/RHSA-2007-1059.html
- http://rhn.redhat.com/errata/RHSA-2007-1068.html
Frequently Asked Questions
What is the severity of CVE-2006-7225?
CVE-2006-7225 is classified as a critical vulnerability due to its potential to cause application crashes.
How does CVE-2006-7225 affect PCRE versions?
CVE-2006-7225 affects multiple versions of PCRE, specifically 0.91 through 6.7.
What types of applications are impacted by CVE-2006-7225?
Applications using the affected versions of PCRE for regular expression handling may crash or exhibit errors.
How do I fix CVE-2006-7225?
To fix CVE-2006-7225, upgrade to a version of PCRE that is not affected, ideally version 6.8 or greater.
What causes the vulnerabilities in CVE-2006-7225?
The vulnerabilities in CVE-2006-7225 are caused by improper handling of invalid character classes in regular expressions.
- collector/redhat-bugzilla
- alias/CVE-2006-7225
- agent/type
- agent/softwarecombine
- agent/last-modified-date
- agent/remedy
- agent/first-publish-date
- agent/tags
- agent/event
- agent/weakness
- agent/severity
- agent/author
- agent/description
- agent/references
- collector/nvd-historical
- vendor/perl
- product/pcre
- canonical/perl pcre
- agent/software-canonical-lookup-request
- collector/nvd-index
- canonical/pcre (perl compatible regular expressions)
- version/pcre (perl compatible regular expressions)/2.01
- version/pcre (perl compatible regular expressions)/4.0
- version/pcre (perl compatible regular expressions)/5.0
- version/pcre (perl compatible regular expressions)/0.99
- version/pcre (perl compatible regular expressions)/0.94
- version/pcre (perl compatible regular expressions)/4.5
- version/pcre (perl compatible regular expressions)/3.7
- version/pcre (perl compatible regular expressions)/3.6
- version/pcre (perl compatible regular expressions)/3.3
- version/pcre (perl compatible regular expressions)/1.04
- version/pcre (perl compatible regular expressions)/2.06
- version/pcre (perl compatible regular expressions)/3.5
- version/pcre (perl compatible regular expressions)/4.2
- version/pcre (perl compatible regular expressions)/0.98
- version/pcre (perl compatible regular expressions)/1.00
- version/pcre (perl compatible regular expressions)/0.93
- version/pcre (perl compatible regular expressions)/2.04
- version/pcre (perl compatible regular expressions)/6.3
- version/pcre (perl compatible regular expressions)/2.03
- version/pcre (perl compatible regular expressions)/1.02
- version/pcre (perl compatible regular expressions)/1.08
- version/pcre (perl compatible regular expressions)/1.01
- version/pcre (perl compatible regular expressions)/6.1
- version/pcre (perl compatible regular expressions)/0.97
- version/pcre (perl compatible regular expressions)/3.9
- version/pcre (perl compatible regular expressions)/1.05
- version/pcre (perl compatible regular expressions)/6.0
- version/pcre (perl compatible regular expressions)/0.96
- version/pcre (perl compatible regular expressions)/2.08
- version/pcre (perl compatible regular expressions)/1.03
- version/pcre (perl compatible regular expressions)/0.92
- version/pcre (perl compatible regular expressions)/6.5
- version/pcre (perl compatible regular expressions)/6.6
- version/pcre (perl compatible regular expressions)/4.4
- version/pcre (perl compatible regular expressions)/4.1
- version/pcre (perl compatible regular expressions)/0.91
- version/pcre (perl compatible regular expressions)/3.8
- version/pcre (perl compatible regular expressions)/6.2
- version/pcre (perl compatible regular expressions)/3.2
- version/pcre (perl compatible regular expressions)/2.05
- version/pcre (perl compatible regular expressions)/1.07
- version/pcre (perl compatible regular expressions)/1.06
- version/pcre (perl compatible regular expressions)/3.4
- version/pcre (perl compatible regular expressions)/3.0
- version/pcre (perl compatible regular expressions)/0.95
- version/pcre (perl compatible regular expressions)/2.02
- version/pcre (perl compatible regular expressions)/6.4
- version/pcre (perl compatible regular expressions)/3.1
- version/pcre (perl compatible regular expressions)/1.09
- version/pcre (perl compatible regular expressions)/2.07
- version/pcre (perl compatible regular expressions)/4.3
- version/pcre (perl compatible regular expressions)/2.0