Synopsis
Important: httpd24-httpd and httpd24-nghttp2 security update
Type/Severity
Security Advisory: Important
Topic
An update for httpd24-httpd and httpd24-nghttp2 is now available for Red Hat Software Collections.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.
Security Fix(es):
- HTTP/2: large amount of data requests leads to denial of service (CVE-2019-9511)
- HTTP/2: flood using PRIORITY frames resulting in excessive resource consumption (CVE-2019-9513)
- HTTP/2: request for large response leads to denial of service (CVE-2019-9517)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
After installing the updated packages, the httpd daemon will be restarted automatically.
Affected Products
-
Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.7 x86_64
-
Red Hat Software Collections (for RHEL Server for System Z) 1 for RHEL 7.7 s390x
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Red Hat Software Collections (for RHEL Server for IBM Power LE) 1 for RHEL 7.7 ppc64le
-
Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.6 x86_64
-
Red Hat Software Collections (for RHEL Server for System Z) 1 for RHEL 7.6 s390x
-
Red Hat Software Collections (for RHEL Server for IBM Power LE) 1 for RHEL 7.6 ppc64le
-
Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.5 x86_64
-
Red Hat Software Collections (for RHEL Server for System Z) 1 for RHEL 7.5 s390x
-
Red Hat Software Collections (for RHEL Server for IBM Power LE) 1 for RHEL 7.5 ppc64le
-
Red Hat Software Collections (for RHEL Server) 1 for RHEL 7 x86_64
-
Red Hat Software Collections (for RHEL Server for System Z) 1 for RHEL 7 s390x
-
Red Hat Software Collections (for RHEL Server for IBM Power LE) 1 for RHEL 7 ppc64le
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Red Hat Software Collections (for RHEL Server for ARM) 1 aarch64
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Red Hat Software Collections (for RHEL Server) 1 for RHEL 6 x86_64
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Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 7 x86_64
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Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 6 x86_64
Fixes
- BZ - 1735741 - CVE-2019-9513 HTTP/2: flood using PRIORITY frames results in excessive resource consumption
- BZ - 1741860 - CVE-2019-9511 HTTP/2: large amount of data requests leads to denial of service
- BZ - 1741868 - CVE-2019-9517 HTTP/2: request for large response leads to denial of service
CVEs
References
Vulmon