-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: httpd security update Advisory ID: RHSA-2017:3194-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:3194 Issue date: 2017-11-13 CVE Names: CVE-2017-3167 CVE-2017-3169 CVE-2017-7668 CVE-2017-7679 CVE-2017-9788 CVE-2017-9798 ===================================================================== 1. Summary: An update for httpd is now available for Red Hat Enterprise Linux 7.3 Extended Update Support. 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. 2. Relevant releases/architectures: Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.3) - noarch, x86_64 Red Hat Enterprise Linux Server EUS (v. 7.3) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 7.3) - ppc64, ppc64le, s390x, x86_64 3. Description: The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Security Fix(es): * It was discovered that the httpd's mod_auth_digest module did not properly initialize memory before using it when processing certain headers related to digest authentication. A remote attacker could possibly use this flaw to disclose potentially sensitive information or cause httpd child process to crash by sending specially crafted requests to a server. (CVE-2017-9788) * It was discovered that the use of httpd's ap_get_basic_auth_pw() API function outside of the authentication phase could lead to authentication bypass. A remote attacker could possibly use this flaw to bypass required authentication if the API was used incorrectly by one of the modules used by httpd. (CVE-2017-3167) * A NULL pointer dereference flaw was found in the httpd's mod_ssl module. A remote attacker could use this flaw to cause an httpd child process to crash if another module used by httpd called a certain API function during the processing of an HTTPS request. (CVE-2017-3169) * A buffer over-read flaw was found in the httpd's ap_find_token() function. A remote attacker could use this flaw to cause httpd child process to crash via a specially crafted HTTP request. (CVE-2017-7668) * A buffer over-read flaw was found in the httpd's mod_mime module. A user permitted to modify httpd's MIME configuration could use this flaw to cause httpd child process to crash. (CVE-2017-7679) * A use-after-free flaw was found in the way httpd handled invalid and previously unregistered HTTP methods specified in the Limit directive used in an .htaccess file. A remote attacker could possibly use this flaw to disclose portions of the server memory, or cause httpd child process to crash. (CVE-2017-9798) Red Hat would like to thank Hanno BAPck for reporting CVE-2017-9798. 4. 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. 5. Bugs fixed (https://bugzilla.redhat.com/): 1463194 - CVE-2017-3167 httpd: ap_get_basic_auth_pw() authentication bypass 1463197 - CVE-2017-3169 httpd: mod_ssl NULL pointer dereference 1463205 - CVE-2017-7668 httpd: ap_find_token() buffer overread 1463207 - CVE-2017-7679 httpd: mod_mime buffer overread 1470748 - CVE-2017-9788 httpd: Uninitialized memory reflection in mod_auth_digest 1490344 - CVE-2017-9798 httpd: Use-after-free by limiting unregistered HTTP method (Optionsbleed) 6. Package List: Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.3): Source: httpd-2.4.6-45.el7_3.5.src.rpm noarch: httpd-manual-2.4.6-45.el7_3.5.noarch.rpm x86_64: httpd-2.4.6-45.el7_3.5.x86_64.rpm httpd-debuginfo-2.4.6-45.el7_3.5.x86_64.rpm httpd-devel-2.4.6-45.el7_3.5.x86_64.rpm httpd-tools-2.4.6-45.el7_3.5.x86_64.rpm mod_ldap-2.4.6-45.el7_3.5.x86_64.rpm mod_proxy_html-2.4.6-45.el7_3.5.x86_64.rpm mod_session-2.4.6-45.el7_3.5.x86_64.rpm mod_ssl-2.4.6-45.el7_3.5.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 7.3): Source: httpd-2.4.6-45.el7_3.5.src.rpm noarch: httpd-manual-2.4.6-45.el7_3.5.noarch.rpm ppc64: httpd-2.4.6-45.el7_3.5.ppc64.rpm httpd-debuginfo-2.4.6-45.el7_3.5.ppc64.rpm httpd-devel-2.4.6-45.el7_3.5.ppc64.rpm httpd-tools-2.4.6-45.el7_3.5.ppc64.rpm mod_ssl-2.4.6-45.el7_3.5.ppc64.rpm ppc64le: httpd-2.4.6-45.el7_3.5.ppc64le.rpm httpd-debuginfo-2.4.6-45.el7_3.5.ppc64le.rpm httpd-devel-2.4.6-45.el7_3.5.ppc64le.rpm httpd-tools-2.4.6-45.el7_3.5.ppc64le.rpm mod_ssl-2.4.6-45.el7_3.5.ppc64le.rpm s390x: httpd-2.4.6-45.el7_3.5.s390x.rpm httpd-debuginfo-2.4.6-45.el7_3.5.s390x.rpm httpd-devel-2.4.6-45.el7_3.5.s390x.rpm httpd-tools-2.4.6-45.el7_3.5.s390x.rpm mod_ssl-2.4.6-45.el7_3.5.s390x.rpm x86_64: httpd-2.4.6-45.el7_3.5.x86_64.rpm httpd-debuginfo-2.4.6-45.el7_3.5.x86_64.rpm httpd-devel-2.4.6-45.el7_3.5.x86_64.rpm httpd-tools-2.4.6-45.el7_3.5.x86_64.rpm mod_ssl-2.4.6-45.el7_3.5.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 7.3): ppc64: httpd-debuginfo-2.4.6-45.el7_3.5.ppc64.rpm mod_ldap-2.4.6-45.el7_3.5.ppc64.rpm mod_proxy_html-2.4.6-45.el7_3.5.ppc64.rpm mod_session-2.4.6-45.el7_3.5.ppc64.rpm ppc64le: httpd-debuginfo-2.4.6-45.el7_3.5.ppc64le.rpm mod_ldap-2.4.6-45.el7_3.5.ppc64le.rpm mod_proxy_html-2.4.6-45.el7_3.5.ppc64le.rpm mod_session-2.4.6-45.el7_3.5.ppc64le.rpm s390x: httpd-debuginfo-2.4.6-45.el7_3.5.s390x.rpm mod_ldap-2.4.6-45.el7_3.5.s390x.rpm mod_proxy_html-2.4.6-45.el7_3.5.s390x.rpm mod_session-2.4.6-45.el7_3.5.s390x.rpm x86_64: httpd-debuginfo-2.4.6-45.el7_3.5.x86_64.rpm mod_ldap-2.4.6-45.el7_3.5.x86_64.rpm mod_proxy_html-2.4.6-45.el7_3.5.x86_64.rpm mod_session-2.4.6-45.el7_3.5.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-2017-3167 https://access.redhat.com/security/cve/CVE-2017-3169 https://access.redhat.com/security/cve/CVE-2017-7668 https://access.redhat.com/security/cve/CVE-2017-7679 https://access.redhat.com/security/cve/CVE-2017-9788 https://access.redhat.com/security/cve/CVE-2017-9798 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFaCdj8XlSAg2UNWIIRAmF6AJ9ommuCBXady2Uloicor+n2/b5e+QCePhWu bCdZPicTFE/tqoTmfRyUw2w= =0uWn -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce