Unrated severityNVD Advisory· Published Aug 23, 2005· Updated Jun 16, 2026
CVE-2005-2491
CVE-2005-2491
Description
Integer overflow in pcre_compile.c in Perl Compatible Regular Expressions (PCRE) before 6.2, as used in multiple products such as Python, Ethereal, and PHP, allows attackers to execute arbitrary code via quantifier values in regular expressions, which leads to a heap-based buffer overflow.
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Affected products
4Patches
Vulnerability mechanics
References
67- securitytracker.com/idnvdPatch
- www.ethereal.com/appnotes/enpa-sa-00021.htmlnvdURL Repurposed
- ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.10/SCOSA-2006.10.txtnvd
- patches.sgi.com/support/free/security/advisories/20060401-01-Unvd
- docs.info.apple.com/article.htmlnvd
- itrc.hp.com/service/cki/docDisplay.donvd
- lists.trustix.org/pipermail/tsl-announce/2005-October/000354.htmlnvd
- marc.infonvd
- marc.infonvd
- marc.infonvd
- secunia.com/advisories/16502nvd
- secunia.com/advisories/16679nvd
- secunia.com/advisories/17252nvd
- secunia.com/advisories/17813nvd
- secunia.com/advisories/19072nvd
- secunia.com/advisories/19193nvd
- secunia.com/advisories/19532nvd
- secunia.com/advisories/21522nvd
- secunia.com/advisories/22691nvd
- secunia.com/advisories/22875nvd
- securityreason.com/securityalert/604nvd
- sunsolve.sun.com/search/document.donvd
- support.avaya.com/elmodocs2/security/ASA-2005-216.pdfnvd
- support.avaya.com/elmodocs2/security/ASA-2005-223.pdfnvd
- support.avaya.com/elmodocs2/security/ASA-2006-081.htmnvd
- support.avaya.com/elmodocs2/security/ASA-2006-159.htmnvd
- www.debian.org/security/2005/dsa-800nvd
- www.debian.org/security/2005/dsa-817nvd
- www.debian.org/security/2005/dsa-819nvd
- www.debian.org/security/2005/dsa-821nvd
- www.gentoo.org/security/en/glsa/glsa-200508-17.xmlnvd
- www.gentoo.org/security/en/glsa/glsa-200509-02.xmlnvd
- www.gentoo.org/security/en/glsa/glsa-200509-08.xmlnvd
- www.gentoo.org/security/en/glsa/glsa-200509-12.xmlnvd
- www.gentoo.org/security/en/glsa/glsa-200509-19.xmlnvd
- www.novell.com/linux/security/advisories/2005_48_pcre.htmlnvd
- www.novell.com/linux/security/advisories/2005_49_php.htmlnvd
- www.novell.com/linux/security/advisories/2005_52_apache2.htmlnvd
- www.php.net/release_4_4_1.phpnvd
- www.redhat.com/support/errata/RHSA-2005-358.htmlnvd
- www.redhat.com/support/errata/RHSA-2005-761.htmlnvd
- www.redhat.com/support/errata/RHSA-2006-0197.htmlnvd
- www.securityfocus.com/archive/1/427046/100/0/threadednvd
- www.securityfocus.com/archive/1/428138/100/0/threadednvd
- www.securityfocus.com/bid/14620nvd
- www.securityfocus.com/bid/15647nvd
- www.vupen.com/english/advisories/2005/1511nvd
- www.vupen.com/english/advisories/2005/2659nvd
- www.vupen.com/english/advisories/2006/0789nvd
- www.vupen.com/english/advisories/2006/4320nvd
- www.vupen.com/english/advisories/2006/4502nvd
- lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r5001ecf3d6b2bdd0b732e527654248abb264f08390045d30709a92f6%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rafd145ba6cd0a4ced113a5823cdaff45aeb36eb09855b216401c66d6%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rd65d8ba68ba17e7deedafbf5bb4899f2ae4dad781d21b931c2941ac3%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/re895fc1736d25c8cf57e102c871613b8aeec9ea26fd8a44e7942b5ab%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3Envd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11516nvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1496nvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1659nvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A735nvd
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