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    CVE-2006-3747

    Off-by-one error in the ldap scheme handling in the Rewrite module (mod_rewrite) in Apache 1.3 from 1.3.28, 2.0.46 and other versions before 2.0.59, and 2.2, when RewriteEngine is enabled, allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted URLs that are not properly handled using certain rewrite rules.

    Published:Jul 28, 2006
    Last Modified:Apr 16, 2026
    EPS:Jul 28, 2006
    EPSS Score:0.92606
    CVSS Score:7.6

    Affected Products

    Vendor
    Apache
    Product
    Http Server
    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux

    Exploits

    https://www.exploit-db.com/exploits/2237https://github.com/defensahacker/CVE-2006-3747https://www.exploit-db.com/exploits/16752https://www.exploit-db.com/exploits/3680https://www.exploit-db.com/exploits/3996

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-48913 (CVSS 7.3) — Use After Free vulnerability in Apache HTTP Server module mod_http2 when file handles are already exhausted. …
    CVE-2026-42536 (CVSS 7.5) — Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and untrusted…
    CVE-2026-44185 (CVSS 7.3) — Buffer Over-read vulnerability in Apache HTTP Server via outbound OCSP requests to an attacker controlled OCSP…
    CVE-2026-34355 (CVSS 7.5) — A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted …
    CVE-2026-44631 (CVSS 9.8) — Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration. Th…
    CVE-2026-44119 (CVSS 5.5) — Improper Privilege Management vulnerability in Apache HTTP Server 2.4.67 and earlier allows local .htaccess au…
    CVE-2026-43951 (CVSS 6.5) — Out-of-bounds Read vulnerability in Apache HTTP Server with mod_headers and mod_mime and multiple response lan…
    CVE-2026-42535 (CVSS 9.1) — A path handling issue in mod_dav_fs in Apache 2.4.67 and earlier allows a WebDAV content author to directly ma…
    CVE-2026-34356 (CVSS 7.5) — Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassRev…
    CVE-2026-44186 (CVSS 7.3) — Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in the mod_proxy_ftp module in Apache HTT…

    References

    http://docs.info.apple.com/article.html?artnum=307562
    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01118771
    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01428449
    http://kbase.redhat.com/faq/FAQ_68_8653.shtm
    http://lists.apple.com/archives/security-announce/2008//May/msg00001.html
    http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html
    http://lists.grok.org.uk/pipermail/full-disclosure/2006-July/048267.html
    http://lists.grok.org.uk/pipermail/full-disclosure/2006-July/048271.html
    http://lwn.net/Alerts/194228/
    http://marc.info/?l=bugtraq&m=130497311408250&w=2
    http://secunia.com/advisories/21197
    http://secunia.com/advisories/21241
    http://secunia.com/advisories/21245
    http://secunia.com/advisories/21247
    http://secunia.com/advisories/21266
    http://secunia.com/advisories/21273
    http://secunia.com/advisories/21284
    http://secunia.com/advisories/21307
    http://secunia.com/advisories/21313
    http://secunia.com/advisories/21315
    http://secunia.com/advisories/21346
    http://secunia.com/advisories/21478
    http://secunia.com/advisories/21509
    http://secunia.com/advisories/22262
    http://secunia.com/advisories/22368
    http://secunia.com/advisories/22388
    http://secunia.com/advisories/22523
    http://secunia.com/advisories/23028
    http://secunia.com/advisories/23260
    http://secunia.com/advisories/26329
    http://secunia.com/advisories/29420
    http://secunia.com/advisories/29849
    http://secunia.com/advisories/30430
    http://security.gentoo.org/glsa/glsa-200608-01.xml
    http://securityreason.com/securityalert/1312
    http://securitytracker.com/id?1016601
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-102662-1
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-102663-1
    http://svn.apache.org/viewvc?view=rev&revision=426144
    http://www-1.ibm.com/support/docview.wss?uid=swg1PK29154
    http://www-1.ibm.com/support/docview.wss?uid=swg1PK29156
    http://www-1.ibm.com/support/docview.wss?uid=swg24013080
    http://www-1.ibm.com/support/docview.wss?uid=swg27007951
    http://www.apache.org/dist/httpd/Announcement2.0.html
    http://www.debian.org/security/2006/dsa-1131
    http://www.debian.org/security/2006/dsa-1132
    http://www.kb.cert.org/vuls/id/395412
    http://www.mandriva.com/security/advisories?name=MDKSA-2006:133
    http://www.novell.com/linux/security/advisories/2006_43_apache.html
    http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.015-apache.html
    http://www.osvdb.org/27588
    http://www.securityfocus.com/archive/1/441485/100/0/threaded
    http://www.securityfocus.com/archive/1/441487/100/0/threaded
    http://www.securityfocus.com/archive/1/441526/100/200/threaded
    http://www.securityfocus.com/archive/1/443870/100/0/threaded
    http://www.securityfocus.com/archive/1/445206/100/0/threaded
    http://www.securityfocus.com/archive/1/450321/100/0/threaded
    http://www.securityfocus.com/bid/19204
    http://www.ubuntu.com/usn/usn-328-1
    http://www.us-cert.gov/cas/techalerts/TA08-150A.html
    http://www.vupen.com/english/advisories/2006/3017
    http://www.vupen.com/english/advisories/2006/3264
    http://www.vupen.com/english/advisories/2006/3282
    http://www.vupen.com/english/advisories/2006/3884
    http://www.vupen.com/english/advisories/2006/3995
    http://www.vupen.com/english/advisories/2006/4015
    http://www.vupen.com/english/advisories/2006/4207
    http://www.vupen.com/english/advisories/2006/4300
    http://www.vupen.com/english/advisories/2006/4868
    http://www.vupen.com/english/advisories/2007/2783
    http://www.vupen.com/english/advisories/2008/0924/references
    http://www.vupen.com/english/advisories/2008/1246/references
    http://www.vupen.com/english/advisories/2008/1697
    http://www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd?mode=18&ID=3117
    https://exchange.xforce.ibmcloud.com/vulnerabilities/28063
    https://issues.rpath.com/browse/RPL-538
    https://lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r5419c9ba0951ef73a655362403d12bb8d10fab38274deb3f005816f5%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r652fc951306cdeca5a276e2021a34878a76695a9f3cfb6490b4a6840%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/rafd145ba6cd0a4ced113a5823cdaff45aeb36eb09855b216401c66d6%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/reb542d2038e9c331506e0cbff881b47e40fbe2bd93ff00979e60cdf7%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
    http://docs.info.apple.com/article.html?artnum=307562
    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01118771
    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01428449
    http://kbase.redhat.com/faq/FAQ_68_8653.shtm
    http://lists.apple.com/archives/security-announce/2008//May/msg00001.html
    http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html
    http://lists.grok.org.uk/pipermail/full-disclosure/2006-July/048267.html
    http://lists.grok.org.uk/pipermail/full-disclosure/2006-July/048271.html
    http://lwn.net/Alerts/194228/
    http://marc.info/?l=bugtraq&m=130497311408250&w=2
    http://secunia.com/advisories/21197
    http://secunia.com/advisories/21241
    http://secunia.com/advisories/21245
    http://secunia.com/advisories/21247
    http://secunia.com/advisories/21266
    http://secunia.com/advisories/21273
    http://secunia.com/advisories/21284
    http://secunia.com/advisories/21307
    http://secunia.com/advisories/21313
    http://secunia.com/advisories/21315
    http://secunia.com/advisories/21346
    http://secunia.com/advisories/21478
    http://secunia.com/advisories/21509
    http://secunia.com/advisories/22262
    http://secunia.com/advisories/22368
    http://secunia.com/advisories/22388
    http://secunia.com/advisories/22523
    http://secunia.com/advisories/23028
    http://secunia.com/advisories/23260
    http://secunia.com/advisories/26329
    http://secunia.com/advisories/29420
    http://secunia.com/advisories/29849
    http://secunia.com/advisories/30430
    http://security.gentoo.org/glsa/glsa-200608-01.xml
    http://securityreason.com/securityalert/1312
    http://securitytracker.com/id?1016601
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-102662-1
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-102663-1
    http://svn.apache.org/viewvc?view=rev&revision=426144
    http://www-1.ibm.com/support/docview.wss?uid=swg1PK29154
    http://www-1.ibm.com/support/docview.wss?uid=swg1PK29156
    http://www-1.ibm.com/support/docview.wss?uid=swg24013080
    http://www-1.ibm.com/support/docview.wss?uid=swg27007951
    http://www.apache.org/dist/httpd/Announcement2.0.html
    http://www.debian.org/security/2006/dsa-1131
    http://www.debian.org/security/2006/dsa-1132
    http://www.kb.cert.org/vuls/id/395412
    http://www.mandriva.com/security/advisories?name=MDKSA-2006:133
    http://www.novell.com/linux/security/advisories/2006_43_apache.html
    http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.015-apache.html
    http://www.osvdb.org/27588
    http://www.securityfocus.com/archive/1/441485/100/0/threaded
    http://www.securityfocus.com/archive/1/441487/100/0/threaded
    http://www.securityfocus.com/archive/1/441526/100/200/threaded
    http://www.securityfocus.com/archive/1/443870/100/0/threaded
    http://www.securityfocus.com/archive/1/445206/100/0/threaded
    http://www.securityfocus.com/archive/1/450321/100/0/threaded
    http://www.securityfocus.com/bid/19204
    http://www.ubuntu.com/usn/usn-328-1
    http://www.us-cert.gov/cas/techalerts/TA08-150A.html
    http://www.vupen.com/english/advisories/2006/3017
    http://www.vupen.com/english/advisories/2006/3264
    http://www.vupen.com/english/advisories/2006/3282
    http://www.vupen.com/english/advisories/2006/3884
    http://www.vupen.com/english/advisories/2006/3995
    http://www.vupen.com/english/advisories/2006/4015
    http://www.vupen.com/english/advisories/2006/4207
    http://www.vupen.com/english/advisories/2006/4300
    http://www.vupen.com/english/advisories/2006/4868
    http://www.vupen.com/english/advisories/2007/2783
    http://www.vupen.com/english/advisories/2008/0924/references
    http://www.vupen.com/english/advisories/2008/1246/references
    http://www.vupen.com/english/advisories/2008/1697
    http://www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd?mode=18&ID=3117
    https://exchange.xforce.ibmcloud.com/vulnerabilities/28063
    https://issues.rpath.com/browse/RPL-538
    https://lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r5419c9ba0951ef73a655362403d12bb8d10fab38274deb3f005816f5%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r652fc951306cdeca5a276e2021a34878a76695a9f3cfb6490b4a6840%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/rafd145ba6cd0a4ced113a5823cdaff45aeb36eb09855b216401c66d6%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/reb542d2038e9c331506e0cbff881b47e40fbe2bd93ff00979e60cdf7%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High