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Red Hat Security Advisory
Synopsis: Moderate: httpd security update
Advisory ID: RHSA-2015:1667-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1667.html
Issue date: 2015-08-24
CVE Names: CVE-2015-3183 CVE-2015-3185
=====================================================================
1. Summary:
Updated httpd packages that fix two security issues are now available for
Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having Moderate security
impact. Common Vulnerability Scoring System (CVSS) base scores, which give
detailed severity ratings, are available for each vulnerability from the
CVE links in the References section.
2. 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
3. Description:
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.
4. 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
5. Bugs fixed (https://bugzilla.redhat.com/):
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
6. 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
httpd-debuginfo-2.4.6-31.el7_1.1.s390x.rpm
httpd-devel-2.4.6-31.el7_1.1.s390x.rpm
httpd-tools-2.4.6-31.el7_1.1.s390x.rpm
mod_ssl-2.4.6-31.el7_1.1.s390x.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_ssl-2.4.6-31.el7_1.1.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
httpd-2.4.6-31.ael7b_1.1.src.rpm
noarch:
httpd-manual-2.4.6-31.ael7b_1.1.noarch.rpm
ppc64le:
httpd-2.4.6-31.ael7b_1.1.ppc64le.rpm
httpd-debuginfo-2.4.6-31.ael7b_1.1.ppc64le.rpm
httpd-devel-2.4.6-31.ael7b_1.1.ppc64le.rpm
httpd-tools-2.4.6-31.ael7b_1.1.ppc64le.rpm
mod_ssl-2.4.6-31.ael7b_1.1.ppc64le.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64:
httpd-debuginfo-2.4.6-31.el7_1.1.ppc64.rpm
mod_ldap-2.4.6-31.el7_1.1.ppc64.rpm
mod_proxy_html-2.4.6-31.el7_1.1.ppc64.rpm
mod_session-2.4.6-31.el7_1.1.ppc64.rpm
s390x:
httpd-debuginfo-2.4.6-31.el7_1.1.s390x.rpm
mod_ldap-2.4.6-31.el7_1.1.s390x.rpm
mod_proxy_html-2.4.6-31.el7_1.1.s390x.rpm
mod_session-2.4.6-31.el7_1.1.s390x.rpm
x86_64:
httpd-debuginfo-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
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64le:
httpd-debuginfo-2.4.6-31.ael7b_1.1.ppc64le.rpm
mod_ldap-2.4.6-31.ael7b_1.1.ppc64le.rpm
mod_proxy_html-2.4.6-31.ael7b_1.1.ppc64le.rpm
mod_session-2.4.6-31.ael7b_1.1.ppc64le.rpm
Red Hat Enterprise Linux Workstation (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_ssl-2.4.6-31.el7_1.1.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
httpd-debuginfo-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
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. 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
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2015 Red Hat, Inc.
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