A vulnerability was found in Apache HTTP Server 2.4.0 to 2.4.38. When the path component of a request URL contains multiple consecutive slashes ('/'), directives such as LocationMatch and RewriteRule must account for duplicates in regular expressions while other aspects of the servers processing will implicitly collapse them.

Published at
2019-06-11
950 days ago
Modified
2021-06-06
224 days ago
2019
Year
The year of the turtle

http://www.securityfocus.com/bid/107670

BID:107670

https://seclists.org/bugtraq/2019/Apr/5

BUGTRAQ:20190403 [SECURITY] [DSA 4422-1] apache2 security update

https://httpd.apache.org/security/vulnerabilities_24.html

CONFIRM:https://httpd.apache.org/security/vulnerabilities_24.html

https://security.netapp.com/advisory/ntap-20190625-0007/

CONFIRM:https://security.netapp.com/advisory/ntap-20190625-0007/

https://support.f5.com/csp/article/K44591505

CONFIRM:https://support.f5.com/csp/article/K44591505

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03950en_us

CONFIRM:https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03950en_us

https://www.debian.org/security/2019/dsa-4422

DEBIAN:DSA-4422

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EZRMTEIGZKYFNGIDOTXN3GNEJTLVCYU7/

FEDORA:FEDORA-2019-119b14075a

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ALIR5S3O7NRHEGFMIDMUSYQIZOE4TJJN/

FEDORA:FEDORA-2019-a4ed7400f4

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WETXNQWNQLWHV6XNW6YTO5UGDTIWAQGT/

FEDORA:FEDORA-2019-cf7695b470

https://www.oracle.com/security-alerts/cpuapr2020.html

MISC:https://www.oracle.com/security-alerts/cpuapr2020.html

https://www.oracle.com/security-alerts/cpujul2020.html

MISC:https://www.oracle.com/security-alerts/cpujul2020.html

https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html

MISC:https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html

https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

MISC:https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

https://lists.debian.org/debian-lts-announce/2019/04/msg00008.html

MLIST:[debian-lts-announce] 20190403 [SECURITY] [DLA 1748-1] apache2 security update

https://lists.apache.org/thread.html/r31f46d1f16ffcafa68058596b21f6eaf6d352290e522690a1cdccdd7@%3Cbugs.httpd.apache.org%3E

MLIST:[httpd-bugs] 20200325 [Bug 63437] MergeSlashes option breaks protocol specifier in URIs

https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830@%3Ccvs.httpd.apache.org%3E

MLIST:[httpd-cvs] 20190815 svn commit: r1048742 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html

https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba@%3Ccvs.httpd.apache.org%3E

MLIST:[httpd-cvs] 20190815 svn commit: r1048743 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html

https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f@%3Ccvs.httpd.apache.org%3E

MLIST:[httpd-cvs] 20200401 svn commit: r1058586 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html

https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234@%3Ccvs.httpd.apache.org%3E

MLIST:[httpd-cvs] 20200401 svn commit: r1058587 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html

https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E

MLIST:[httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/

https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d@%3Ccvs.httpd.apache.org%3E

MLIST:[httpd-cvs] 20210330 svn commit: r1073139 [12/13] - in /websites/staging/httpd/trunk/content: ./ security/json/

https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a@%3Ccvs.httpd.apache.org%3E

MLIST:[httpd-cvs] 20210330 svn commit: r1073140 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html

https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf@%3Ccvs.httpd.apache.org%3E

MLIST:[httpd-cvs] 20210330 svn commit: r1073143 [3/3] - in /websites/staging/httpd/trunk/content: ./ security/

https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920@%3Ccvs.httpd.apache.org%3E

MLIST:[httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/

https://lists.apache.org/thread.html/re473305a65b4db888e3556e4dae10c2a04ee89dcff2e26ecdbd860a9@%3Ccvs.httpd.apache.org%3E

MLIST:[httpd-cvs] 20210330 svn commit: r1073149 [12/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/

https://lists.apache.org/thread.html/rd2fb621142e7fa187cfe12d7137bf66e7234abcbbcd800074c84a538@%3Ccvs.httpd.apache.org%3E

MLIST:[httpd-cvs] 20210330 svn commit: r1888194 [12/13] - /httpd/site/trunk/content/security/json/

https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9@%3Ccvs.httpd.apache.org%3E

MLIST:[httpd-cvs] 20210603 svn commit: r1075360 [3/3] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2021-31618.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html

https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d@%3Ccvs.httpd.apache.org%3E

MLIST:[httpd-cvs] 20210606 svn commit: r1075470 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html

http://www.openwall.com/lists/oss-security/2019/04/02/6

MLIST:[oss-security] 20190401 CVE-2019-0220: URL normalization inconsistincies

https://access.redhat.com/errata/RHSA-2019:2343

REDHAT:RHSA-2019:2343

https://access.redhat.com/errata/RHSA-2019:3436

REDHAT:RHSA-2019:3436

https://access.redhat.com/errata/RHSA-2019:4126

REDHAT:RHSA-2019:4126

https://access.redhat.com/errata/RHSA-2020:0250

REDHAT:RHSA-2020:0250

https://access.redhat.com/errata/RHSA-2020:0251

REDHAT:RHSA-2020:0251

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00051.html

SUSE:openSUSE-SU-2019:1190

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00061.html

SUSE:openSUSE-SU-2019:1209

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.html

SUSE:openSUSE-SU-2019:1258

https://usn.ubuntu.com/3937-1/

UBUNTU:USN-3937-1

Vulnerability RAW

{
	"Title": {
		"_text": "CVE-2019-0220"
	},
	"Notes": {
		"Note": [
			{
				"_text": "A vulnerability was found in Apache HTTP Server 2.4.0 to 2.4.38. When the path component of a request URL contains multiple consecutive slashes ('/'), directives such as LocationMatch and RewriteRule must account for duplicates in regular expressions while other aspects of the servers processing will implicitly collapse them."
			},
			{
				"_text": "2019-06-11"
			},
			{
				"_text": "2021-06-06"
			}
		]
	},
	"CVE": {
		"_text": "CVE-2019-0220"
	},
	"References": {
		"Reference": [
			{
				"URL": {
					"_text": "http://www.securityfocus.com/bid/107670"
				},
				"Description": {
					"_text": "BID:107670"
				}
			},
			{
				"URL": {
					"_text": "https://seclists.org/bugtraq/2019/Apr/5"
				},
				"Description": {
					"_text": "BUGTRAQ:20190403 [SECURITY] [DSA 4422-1] apache2 security update"
				}
			},
			{
				"URL": {
					"_text": "https://httpd.apache.org/security/vulnerabilities_24.html"
				},
				"Description": {
					"_text": "CONFIRM:https://httpd.apache.org/security/vulnerabilities_24.html"
				}
			},
			{
				"URL": {
					"_text": "https://security.netapp.com/advisory/ntap-20190625-0007/"
				},
				"Description": {
					"_text": "CONFIRM:https://security.netapp.com/advisory/ntap-20190625-0007/"
				}
			},
			{
				"URL": {
					"_text": "https://support.f5.com/csp/article/K44591505"
				},
				"Description": {
					"_text": "CONFIRM:https://support.f5.com/csp/article/K44591505"
				}
			},
			{
				"URL": {
					"_text": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03950en_us"
				},
				"Description": {
					"_text": "CONFIRM:https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03950en_us"
				}
			},
			{
				"URL": {
					"_text": "https://www.debian.org/security/2019/dsa-4422"
				},
				"Description": {
					"_text": "DEBIAN:DSA-4422"
				}
			},
			{
				"URL": {
					"_text": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EZRMTEIGZKYFNGIDOTXN3GNEJTLVCYU7/"
				},
				"Description": {
					"_text": "FEDORA:FEDORA-2019-119b14075a"
				}
			},
			{
				"URL": {
					"_text": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ALIR5S3O7NRHEGFMIDMUSYQIZOE4TJJN/"
				},
				"Description": {
					"_text": "FEDORA:FEDORA-2019-a4ed7400f4"
				}
			},
			{
				"URL": {
					"_text": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WETXNQWNQLWHV6XNW6YTO5UGDTIWAQGT/"
				},
				"Description": {
					"_text": "FEDORA:FEDORA-2019-cf7695b470"
				}
			},
			{
				"URL": {
					"_text": "https://www.oracle.com/security-alerts/cpuapr2020.html"
				},
				"Description": {
					"_text": "MISC:https://www.oracle.com/security-alerts/cpuapr2020.html"
				}
			},
			{
				"URL": {
					"_text": "https://www.oracle.com/security-alerts/cpujul2020.html"
				},
				"Description": {
					"_text": "MISC:https://www.oracle.com/security-alerts/cpujul2020.html"
				}
			},
			{
				"URL": {
					"_text": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"
				},
				"Description": {
					"_text": "MISC:https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"
				}
			},
			{
				"URL": {
					"_text": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"
				},
				"Description": {
					"_text": "MISC:https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"
				}
			},
			{
				"URL": {
					"_text": "https://lists.debian.org/debian-lts-announce/2019/04/msg00008.html"
				},
				"Description": {
					"_text": "MLIST:[debian-lts-announce] 20190403 [SECURITY] [DLA 1748-1] apache2 security update"
				}
			},
			{
				"URL": {
					"_text": "https://lists.apache.org/thread.html/r31f46d1f16ffcafa68058596b21f6eaf6d352290e522690a1cdccdd7@%3Cbugs.httpd.apache.org%3E"
				},
				"Description": {
					"_text": "MLIST:[httpd-bugs] 20200325 [Bug 63437] MergeSlashes option breaks protocol specifier in URIs"
				}
			},
			{
				"URL": {
					"_text": "https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830@%3Ccvs.httpd.apache.org%3E"
				},
				"Description": {
					"_text": "MLIST:[httpd-cvs] 20190815 svn commit: r1048742 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html"
				}
			},
			{
				"URL": {
					"_text": "https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba@%3Ccvs.httpd.apache.org%3E"
				},
				"Description": {
					"_text": "MLIST:[httpd-cvs] 20190815 svn commit: r1048743 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html"
				}
			},
			{
				"URL": {
					"_text": "https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f@%3Ccvs.httpd.apache.org%3E"
				},
				"Description": {
					"_text": "MLIST:[httpd-cvs] 20200401 svn commit: r1058586 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html"
				}
			},
			{
				"URL": {
					"_text": "https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234@%3Ccvs.httpd.apache.org%3E"
				},
				"Description": {
					"_text": "MLIST:[httpd-cvs] 20200401 svn commit: r1058587 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html"
				}
			},
			{
				"URL": {
					"_text": "https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E"
				},
				"Description": {
					"_text": "MLIST:[httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/"
				}
			},
			{
				"URL": {
					"_text": "https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d@%3Ccvs.httpd.apache.org%3E"
				},
				"Description": {
					"_text": "MLIST:[httpd-cvs] 20210330 svn commit: r1073139 [12/13] - in /websites/staging/httpd/trunk/content: ./ security/json/"
				}
			},
			{
				"URL": {
					"_text": "https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a@%3Ccvs.httpd.apache.org%3E"
				},
				"Description": {
					"_text": "MLIST:[httpd-cvs] 20210330 svn commit: r1073140 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html"
				}
			},
			{
				"URL": {
					"_text": "https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf@%3Ccvs.httpd.apache.org%3E"
				},
				"Description": {
					"_text": "MLIST:[httpd-cvs] 20210330 svn commit: r1073143 [3/3] - in /websites/staging/httpd/trunk/content: ./ security/"
				}
			},
			{
				"URL": {
					"_text": "https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920@%3Ccvs.httpd.apache.org%3E"
				},
				"Description": {
					"_text": "MLIST:[httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/"
				}
			},
			{
				"URL": {
					"_text": "https://lists.apache.org/thread.html/re473305a65b4db888e3556e4dae10c2a04ee89dcff2e26ecdbd860a9@%3Ccvs.httpd.apache.org%3E"
				},
				"Description": {
					"_text": "MLIST:[httpd-cvs] 20210330 svn commit: r1073149 [12/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/"
				}
			},
			{
				"URL": {
					"_text": "https://lists.apache.org/thread.html/rd2fb621142e7fa187cfe12d7137bf66e7234abcbbcd800074c84a538@%3Ccvs.httpd.apache.org%3E"
				},
				"Description": {
					"_text": "MLIST:[httpd-cvs] 20210330 svn commit: r1888194 [12/13] - /httpd/site/trunk/content/security/json/"
				}
			},
			{
				"URL": {
					"_text": "https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9@%3Ccvs.httpd.apache.org%3E"
				},
				"Description": {
					"_text": "MLIST:[httpd-cvs] 20210603 svn commit: r1075360 [3/3] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2021-31618.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html"
				}
			},
			{
				"URL": {
					"_text": "https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d@%3Ccvs.httpd.apache.org%3E"
				},
				"Description": {
					"_text": "MLIST:[httpd-cvs] 20210606 svn commit: r1075470 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html"
				}
			},
			{
				"URL": {
					"_text": "http://www.openwall.com/lists/oss-security/2019/04/02/6"
				},
				"Description": {
					"_text": "MLIST:[oss-security] 20190401 CVE-2019-0220: URL normalization inconsistincies"
				}
			},
			{
				"URL": {
					"_text": "https://access.redhat.com/errata/RHSA-2019:2343"
				},
				"Description": {
					"_text": "REDHAT:RHSA-2019:2343"
				}
			},
			{
				"URL": {
					"_text": "https://access.redhat.com/errata/RHSA-2019:3436"
				},
				"Description": {
					"_text": "REDHAT:RHSA-2019:3436"
				}
			},
			{
				"URL": {
					"_text": "https://access.redhat.com/errata/RHSA-2019:4126"
				},
				"Description": {
					"_text": "REDHAT:RHSA-2019:4126"
				}
			},
			{
				"URL": {
					"_text": "https://access.redhat.com/errata/RHSA-2020:0250"
				},
				"Description": {
					"_text": "REDHAT:RHSA-2020:0250"
				}
			},
			{
				"URL": {
					"_text": "https://access.redhat.com/errata/RHSA-2020:0251"
				},
				"Description": {
					"_text": "REDHAT:RHSA-2020:0251"
				}
			},
			{
				"URL": {
					"_text": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00051.html"
				},
				"Description": {
					"_text": "SUSE:openSUSE-SU-2019:1190"
				}
			},
			{
				"URL": {
					"_text": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00061.html"
				},
				"Description": {
					"_text": "SUSE:openSUSE-SU-2019:1209"
				}
			},
			{
				"URL": {
					"_text": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.html"
				},
				"Description": {
					"_text": "SUSE:openSUSE-SU-2019:1258"
				}
			},
			{
				"URL": {
					"_text": "https://usn.ubuntu.com/3937-1/"
				},
				"Description": {
					"_text": "UBUNTU:USN-3937-1"
				}
			}
		]
	}
}