CVE-2005-2491

N/A Unknown
Published: August 23, 2005 Modified: April 16, 2026
View on NVD

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.10/SCOSA-2006.10.txt
Source: secalert@redhat.com
ftp://patches.sgi.com/support/free/security/advisories/20060401-01-U
Source: secalert@redhat.com
http://docs.info.apple.com/article.html?artnum=302847
Source: secalert@redhat.com
http://itrc.hp.com/service/cki/docDisplay.do?docId=c00786522
Source: secalert@redhat.com
http://lists.trustix.org/pipermail/tsl-announce/2005-October/000354.html
Source: secalert@redhat.com
http://marc.info/?l=bugtraq&m=112605112027335&w=2
Source: secalert@redhat.com
http://marc.info/?l=bugtraq&m=112606064317223&w=2
Source: secalert@redhat.com
http://marc.info/?l=bugtraq&m=130497311408250&w=2
Source: secalert@redhat.com
http://secunia.com/advisories/16502
Source: secalert@redhat.com
http://secunia.com/advisories/16679
Source: secalert@redhat.com
http://secunia.com/advisories/17252
Source: secalert@redhat.com
http://secunia.com/advisories/17813
Source: secalert@redhat.com
http://secunia.com/advisories/19072
Source: secalert@redhat.com
http://secunia.com/advisories/19193
Source: secalert@redhat.com
http://secunia.com/advisories/19532
Source: secalert@redhat.com
http://secunia.com/advisories/21522
Source: secalert@redhat.com
http://secunia.com/advisories/22691
Source: secalert@redhat.com
http://secunia.com/advisories/22875
Source: secalert@redhat.com
http://securityreason.com/securityalert/604
Source: secalert@redhat.com
http://securitytracker.com/id?1014744
Source: secalert@redhat.com
Patch
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102198-1
Source: secalert@redhat.com
http://support.avaya.com/elmodocs2/security/ASA-2005-216.pdf
Source: secalert@redhat.com
http://support.avaya.com/elmodocs2/security/ASA-2005-223.pdf
Source: secalert@redhat.com
http://support.avaya.com/elmodocs2/security/ASA-2006-081.htm
Source: secalert@redhat.com
http://support.avaya.com/elmodocs2/security/ASA-2006-159.htm
Source: secalert@redhat.com
http://www.debian.org/security/2005/dsa-800
Source: secalert@redhat.com
http://www.debian.org/security/2005/dsa-817
Source: secalert@redhat.com
http://www.debian.org/security/2005/dsa-819
Source: secalert@redhat.com
http://www.debian.org/security/2005/dsa-821
Source: secalert@redhat.com
http://www.ethereal.com/appnotes/enpa-sa-00021.html
Source: secalert@redhat.com
URL Repurposed
http://www.gentoo.org/security/en/glsa/glsa-200508-17.xml
Source: secalert@redhat.com
http://www.gentoo.org/security/en/glsa/glsa-200509-02.xml
Source: secalert@redhat.com
http://www.gentoo.org/security/en/glsa/glsa-200509-08.xml
Source: secalert@redhat.com
http://www.gentoo.org/security/en/glsa/glsa-200509-12.xml
Source: secalert@redhat.com
http://www.gentoo.org/security/en/glsa/glsa-200509-19.xml
Source: secalert@redhat.com
http://www.novell.com/linux/security/advisories/2005_48_pcre.html
Source: secalert@redhat.com
http://www.novell.com/linux/security/advisories/2005_49_php.html
Source: secalert@redhat.com
http://www.novell.com/linux/security/advisories/2005_52_apache2.html
Source: secalert@redhat.com
http://www.php.net/release_4_4_1.php
Source: secalert@redhat.com
http://www.redhat.com/support/errata/RHSA-2005-358.html
Source: secalert@redhat.com
http://www.redhat.com/support/errata/RHSA-2005-761.html
Source: secalert@redhat.com
http://www.redhat.com/support/errata/RHSA-2006-0197.html
Source: secalert@redhat.com
http://www.securityfocus.com/archive/1/427046/100/0/threaded
Source: secalert@redhat.com
http://www.securityfocus.com/archive/1/428138/100/0/threaded
Source: secalert@redhat.com
http://www.securityfocus.com/bid/14620
Source: secalert@redhat.com
http://www.securityfocus.com/bid/15647
Source: secalert@redhat.com
http://www.vupen.com/english/advisories/2005/1511
Source: secalert@redhat.com
http://www.vupen.com/english/advisories/2005/2659
Source: secalert@redhat.com
http://www.vupen.com/english/advisories/2006/0789
Source: secalert@redhat.com
http://www.vupen.com/english/advisories/2006/4320
Source: secalert@redhat.com
http://www.vupen.com/english/advisories/2006/4502
Source: secalert@redhat.com
https://lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%3E
Source: secalert@redhat.com
https://lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%3E
Source: secalert@redhat.com
https://lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org%3E
Source: secalert@redhat.com
https://lists.apache.org/thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org%3E
Source: secalert@redhat.com
https://lists.apache.org/thread.html/r5001ecf3d6b2bdd0b732e527654248abb264f08390045d30709a92f6%40%3Ccvs.httpd.apache.org%3E
Source: secalert@redhat.com
https://lists.apache.org/thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org%3E
Source: secalert@redhat.com
https://lists.apache.org/thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org%3E
Source: secalert@redhat.com
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
Source: secalert@redhat.com
https://lists.apache.org/thread.html/rafd145ba6cd0a4ced113a5823cdaff45aeb36eb09855b216401c66d6%40%3Ccvs.httpd.apache.org%3E
Source: secalert@redhat.com
https://lists.apache.org/thread.html/rd65d8ba68ba17e7deedafbf5bb4899f2ae4dad781d21b931c2941ac3%40%3Ccvs.httpd.apache.org%3E
Source: secalert@redhat.com
https://lists.apache.org/thread.html/re895fc1736d25c8cf57e102c871613b8aeec9ea26fd8a44e7942b5ab%40%3Ccvs.httpd.apache.org%3E
Source: secalert@redhat.com
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
Source: secalert@redhat.com
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11516
Source: secalert@redhat.com
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1496
Source: secalert@redhat.com
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1659
Source: secalert@redhat.com
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A735
Source: secalert@redhat.com
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.10/SCOSA-2006.10.txt
Source: af854a3a-2127-422b-91ae-364da2661108
ftp://patches.sgi.com/support/free/security/advisories/20060401-01-U
Source: af854a3a-2127-422b-91ae-364da2661108
http://docs.info.apple.com/article.html?artnum=302847
Source: af854a3a-2127-422b-91ae-364da2661108
http://itrc.hp.com/service/cki/docDisplay.do?docId=c00786522
Source: af854a3a-2127-422b-91ae-364da2661108
http://lists.trustix.org/pipermail/tsl-announce/2005-October/000354.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://marc.info/?l=bugtraq&m=112605112027335&w=2
Source: af854a3a-2127-422b-91ae-364da2661108
http://marc.info/?l=bugtraq&m=112606064317223&w=2
Source: af854a3a-2127-422b-91ae-364da2661108
http://marc.info/?l=bugtraq&m=130497311408250&w=2
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/16502
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/16679
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/17252
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/17813
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/19072
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/19193
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/19532
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/21522
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/22691
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/22875
Source: af854a3a-2127-422b-91ae-364da2661108
http://securityreason.com/securityalert/604
Source: af854a3a-2127-422b-91ae-364da2661108
http://securitytracker.com/id?1014744
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102198-1
Source: af854a3a-2127-422b-91ae-364da2661108
http://support.avaya.com/elmodocs2/security/ASA-2005-216.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
http://support.avaya.com/elmodocs2/security/ASA-2005-223.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
http://support.avaya.com/elmodocs2/security/ASA-2006-081.htm
Source: af854a3a-2127-422b-91ae-364da2661108
http://support.avaya.com/elmodocs2/security/ASA-2006-159.htm
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.debian.org/security/2005/dsa-800
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.debian.org/security/2005/dsa-817
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.debian.org/security/2005/dsa-819
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.debian.org/security/2005/dsa-821
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.ethereal.com/appnotes/enpa-sa-00021.html
Source: af854a3a-2127-422b-91ae-364da2661108
URL Repurposed
http://www.gentoo.org/security/en/glsa/glsa-200508-17.xml
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.gentoo.org/security/en/glsa/glsa-200509-02.xml
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.gentoo.org/security/en/glsa/glsa-200509-08.xml
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.gentoo.org/security/en/glsa/glsa-200509-12.xml
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.gentoo.org/security/en/glsa/glsa-200509-19.xml
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.novell.com/linux/security/advisories/2005_48_pcre.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.novell.com/linux/security/advisories/2005_49_php.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.novell.com/linux/security/advisories/2005_52_apache2.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.php.net/release_4_4_1.php
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.redhat.com/support/errata/RHSA-2005-358.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.redhat.com/support/errata/RHSA-2005-761.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.redhat.com/support/errata/RHSA-2006-0197.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/archive/1/427046/100/0/threaded
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/archive/1/428138/100/0/threaded
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/14620
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/15647
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.vupen.com/english/advisories/2005/1511
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.vupen.com/english/advisories/2005/2659
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.vupen.com/english/advisories/2006/0789
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.vupen.com/english/advisories/2006/4320
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.vupen.com/english/advisories/2006/4502
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%3E
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%3E
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org%3E
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.apache.org/thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org%3E
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.apache.org/thread.html/r5001ecf3d6b2bdd0b732e527654248abb264f08390045d30709a92f6%40%3Ccvs.httpd.apache.org%3E
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.apache.org/thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org%3E
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.apache.org/thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org%3E
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.apache.org/thread.html/rafd145ba6cd0a4ced113a5823cdaff45aeb36eb09855b216401c66d6%40%3Ccvs.httpd.apache.org%3E
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.apache.org/thread.html/rd65d8ba68ba17e7deedafbf5bb4899f2ae4dad781d21b931c2941ac3%40%3Ccvs.httpd.apache.org%3E
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.apache.org/thread.html/re895fc1736d25c8cf57e102c871613b8aeec9ea26fd8a44e7942b5ab%40%3Ccvs.httpd.apache.org%3E
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
Source: af854a3a-2127-422b-91ae-364da2661108
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11516
Source: af854a3a-2127-422b-91ae-364da2661108
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1496
Source: af854a3a-2127-422b-91ae-364da2661108
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1659
Source: af854a3a-2127-422b-91ae-364da2661108
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A735
Source: af854a3a-2127-422b-91ae-364da2661108

134 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
2.0%
84th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

pcre