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Red Hat 7: RHSA-2015:1667-01 Moderate: Httpd Request Smuggling

red hat
Calendar Grey August 24, 2015
Dist Redhat Esm H88
Revised nginx components address vulnerability issues for CentOS 7, preserving system stability and protection.
Updated httpd packages that fix two security issues are now available for Red Hat Enterprise Linux 7

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Summary

The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.
Multiple flaws were found in the way httpd parsed HTTP requests and responses using chunked transfer encoding. A remote attacker could use these flaws to create a specially crafted request, which httpd would decode differently from an HTTP proxy software in front of it, possibly leading to HTTP request smuggling attacks. (CVE-2015-3183)
It was discovered that in httpd 2.4, the internal API function ap_some_auth_required() could incorrectly indicate that a request was authenticated even when no authentication was used. An httpd module using this API function could consequently allow access that should have been denied. (CVE-2015-3185)
All httpd users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the httpd service will be restarted automatically.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat httpd authentication issue request smuggling

References

https://access.redhat.com/security/cve/CVE-2015-3183 https://access.redhat.com/security/cve/CVE-2015-3185 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Client Optional (v. 7):
Source: httpd-2.4.6-31.el7_1.1.src.rpm
noarch: httpd-manual-2.4.6-31.el7_1.1.noarch.rpm
x86_64: httpd-2.4.6-31.el7_1.1.x86_64.rpm httpd-debuginfo-2.4.6-31.el7_1.1.x86_64.rpm httpd-devel-2.4.6-31.el7_1.1.x86_64.rpm httpd-tools-2.4.6-31.el7_1.1.x86_64.rpm mod_ldap-2.4.6-31.el7_1.1.x86_64.rpm mod_proxy_html-2.4.6-31.el7_1.1.x86_64.rpm mod_session-2.4.6-31.el7_1.1.x86_64.rpm mod_ssl-2.4.6-31.el7_1.1.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
Source: httpd-2.4.6-31.el7_1.1.src.rpm
noarch: httpd-manual-2.4.6-31.el7_1.1.noarch.rpm
x86_64: httpd-2.4.6-31.el7_1.1.x86_64.rpm httpd-debuginfo-2.4.6-31.el7_1.1.x86_64.rpm httpd-devel-2.4.6-31.el7_1.1.x86_64.rpm httpd-tools-2.4.6-31.el7_1.1.x86_64.rpm mod_ldap-2.4.6-31.el7_1.1.x86_64.rpm mod_proxy_html-2.4.6-31.el7_1.1.x86_64.rpm mod_session-2.4.6-31.el7_1.1.x86_64.rpm mod_ssl-2.4.6-31.el7_1.1.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: httpd-2.4.6-31.el7_1.1.src.rpm
noarch: httpd-manual-2.4.6-31.el7_1.1.noarch.rpm
ppc64: httpd-2.4.6-31.el7_1.1.ppc64.rpm httpd-debuginfo-2.4.6-31.el7_1.1.ppc64.rpm httpd-devel-2.4.6-31.el7_1.1.ppc64.rpm httpd-tools-2.4.6-31.el7_1.1.ppc64.rpm mod_ssl-2.4.6-31.el7_1.1.ppc64.rpm
s390x: httpd-2.4.6-31.el7_1.1.s390x.rpm

Read the Full Advisory


Advisory ID: RHSA-2015:1667-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2015:1667.html
Issue date: 2015-08-24

Topic

Updated httpd packages that fix two security issues are now available forRed Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having Moderate securityimpact. Common Vulnerability Scoring System (CVSS) base scores, which givedetailed severity ratings, are available for each vulnerability from theCVE links in the References section.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat httpd authentication issue request smuggling

Relevant Releases Architectures

Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

1243887 - CVE-2015-3183 httpd: HTTP request smuggling attack against chunked request parser

1243888 - CVE-2015-3185 httpd: ap_some_auth_required() does not properly indicate authenticated request in 2.4

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