Public Date:
1695036: CVE-2019-0220 httpd: URL normalization inconsistency

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2019-0220 from the MITRE CVE dictionary dictionary and NIST NVD.


Red Hat Enterprise Linux 6 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. This flaw has been rated as having a security impact of Low, and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle:

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 3.3
CVSS3 Base Metrics CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Impact None
Availability Impact Low

Affected Packages State

Platform Package State
Red Hat Virtualization 4 rhvm-appliance Not affected
Red Hat Software Collections for Red Hat Enterprise Linux httpd24-httpd Affected
Red Hat JBoss EWS 2 httpd Under investigation
Red Hat JBoss Core Services 1 httpd Under investigation
Red Hat Enterprise Linux 8 httpd:2.4/httpd Affected
Red Hat Enterprise Linux 7 httpd Affected
Red Hat Enterprise Linux 6 httpd Out of support scope
Red Hat Enterprise Linux 5 httpd Under investigation


This flaw can be mitigation by replacing multiple consecutive slashes, used in directives that match against the path component of the request URL with regular expressions.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation