medium
6.8
CWE
189 119 190
Advisory Published
Rejected
Updated

CVE-2006-7228: Buffer Overflow

First published: Wed Nov 07 2007(Updated: )

<a href="https://access.redhat.com/security/cve/CVE-2006-7224">CVE-2006-7224</a> initially described several integer overflows in pcre, all described here: <a href="http://scary.beasts.org/security/CESA-2007-006.html">http://scary.beasts.org/security/CESA-2007-006.html</a> This id should be used to describe issue #2 in that advisory: 3) More possible integer overflow trouble. pcre_compile: --- if (min == 0) { length++; if (max &gt; 0) length += (max - 1) * (duplength + 3 + 2*LINK_SIZE); } ... else { length += (min - 1) * duplength; if (max &gt; min) /* Need this test as max=-1 means no limit */ length += (max - min) * (duplength + 3 + 2*LINK_SIZE) - (2 + 2*LINK_SIZE); } --- In both these cases, I see no reason why a malicious regexp pattern couldn't cause an integer overflow by using large min / max / duplength values. This will really mess up the critical "length" value.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/pcre<0:4.5-4.el4_6.6
0:4.5-4.el4_6.6
redhat/python<0:2.3.4-14.4.el4_6.1
0:2.3.4-14.4.el4_6.1
redhat/pcre<0:6.6-2.el5_1.7
0:6.6-2.el5_1.7
PCRE (Perl Compatible Regular Expressions)<=6.6

Remedy

http://secunia.com/advisories/27582

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2006-7228?

    CVE-2006-7228 is considered a critical vulnerability due to potential integer overflows in the PCRE implementation.

  • How do I fix CVE-2006-7228?

    To fix CVE-2006-7228, update the PCRE package to version 0:4.5-4.el4_6.6 or later as specified in the applicable remediation.

  • Which software is affected by CVE-2006-7228?

    CVE-2006-7228 affects specific versions of PCRE and Python packages on Red Hat-based systems.

  • What type of vulnerability is CVE-2006-7228?

    CVE-2006-7228 is an integer overflow vulnerability which can lead to security flaws in applications using PCRE.

  • Is there a known exploit for CVE-2006-7228?

    Yes, there have been reports of exploits leveraging the integer overflow vulnerabilities identified in CVE-2006-7228.

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