news 28 Posted June 16, 2009 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: httpd security update Advisory ID: RHSA-2009:1108-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2009-1108.html Issue date: 2009-06-16 CVE Names: CVE-2009-0023 CVE-2009-1955 CVE-2009-1956 ===================================================================== 1. Summary: Updated httpd packages that fix multiple security issues are now available for Red Hat Enterprise Linux 3. This update has been rated as having moderate security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Desktop version 3 - i386, x86_64 Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64 3. Description: The Apache HTTP Server is a popular Web server. The httpd package shipped with Red Hat Enterprise Linux 3 contains an embedded copy of the Apache Portable Runtime (APR) utility library, a free library of C data structures and routines, which includes interfaces to support XML parsing, LDAP connections, database interfaces, URI parsing, and more. An off-by-one overflow flaw was found in the way apr-util processed a variable list of arguments. An attacker could provide a specially-crafted string as input for the formatted output conversion routine, which could, on big-endian platforms, potentially lead to the disclosure of sensitive information or a denial of service (application crash). (CVE-2009-1956) Note: The CVE-2009-1956 flaw only affects big-endian platforms, such as the IBM S/390 and PowerPC. It does not affect users using the httpd package on little-endian platforms, due to their different organization of byte ordering used to represent particular data. A denial of service flaw was found in the apr-util Extensible Markup Language (XML) parser. A remote attacker could create a specially-crafted XML document that would cause excessive memory consumption when processed by the XML decoding engine. (CVE-2009-1955) A heap-based underwrite flaw was found in the way apr-util created compiled forms of particular search patterns. An attacker could formulate a specially-crafted search keyword, that would overwrite arbitrary heap memory locations when processed by the pattern preparation engine. (CVE-2009-0023) All httpd users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the httpd daemon must be restarted for the update to take effect. 4. Solution: Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 503928 - CVE-2009-0023 apr-util heap buffer underwrite 504390 - CVE-2009-1956 apr-util single NULL byte buffer overflow 504555 - CVE-2009-1955 apr-util billion laughs attack 6. Package List: Red Hat Enterprise Linux AS version 3: Source: ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/httpd-2.0.46-73.ent.src.rpm i386: httpd-2.0.46-73.ent.i386.rpm httpd-debuginfo-2.0.46-73.ent.i386.rpm httpd-devel-2.0.46-73.ent.i386.rpm mod_ssl-2.0.46-73.ent.i386.rpm ia64: httpd-2.0.46-73.ent.ia64.rpm httpd-debuginfo-2.0.46-73.ent.ia64.rpm httpd-devel-2.0.46-73.ent.ia64.rpm mod_ssl-2.0.46-73.ent.ia64.rpm ppc: httpd-2.0.46-73.ent.ppc.rpm httpd-debuginfo-2.0.46-73.ent.ppc.rpm httpd-devel-2.0.46-73.ent.ppc.rpm mod_ssl-2.0.46-73.ent.ppc.rpm s390: httpd-2.0.46-73.ent.s390.rpm httpd-debuginfo-2.0.46-73.ent.s390.rpm httpd-devel-2.0.46-73.ent.s390.rpm mod_ssl-2.0.46-73.ent.s390.rpm s390x: httpd-2.0.46-73.ent.s390x.rpm httpd-debuginfo-2.0.46-73.ent.s390x.rpm httpd-devel-2.0.46-73.ent.s390x.rpm mod_ssl-2.0.46-73.ent.s390x.rpm x86_64: httpd-2.0.46-73.ent.x86_64.rpm httpd-debuginfo-2.0.46-73.ent.x86_64.rpm httpd-devel-2.0.46-73.ent.x86_64.rpm mod_ssl-2.0.46-73.ent.x86_64.rpm Red Hat Desktop version 3: Source: ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/httpd-2.0.46-73.ent.src.rpm i386: httpd-2.0.46-73.ent.i386.rpm httpd-debuginfo-2.0.46-73.ent.i386.rpm httpd-devel-2.0.46-73.ent.i386.rpm mod_ssl-2.0.46-73.ent.i386.rpm x86_64: httpd-2.0.46-73.ent.x86_64.rpm httpd-debuginfo-2.0.46-73.ent.x86_64.rpm httpd-devel-2.0.46-73.ent.x86_64.rpm mod_ssl-2.0.46-73.ent.x86_64.rpm Red Hat Enterprise Linux ES version 3: Source: ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/httpd-2.0.46-73.ent.src.rpm i386: httpd-2.0.46-73.ent.i386.rpm httpd-debuginfo-2.0.46-73.ent.i386.rpm httpd-devel-2.0.46-73.ent.i386.rpm mod_ssl-2.0.46-73.ent.i386.rpm ia64: httpd-2.0.46-73.ent.ia64.rpm httpd-debuginfo-2.0.46-73.ent.ia64.rpm httpd-devel-2.0.46-73.ent.ia64.rpm mod_ssl-2.0.46-73.ent.ia64.rpm x86_64: httpd-2.0.46-73.ent.x86_64.rpm httpd-debuginfo-2.0.46-73.ent.x86_64.rpm httpd-devel-2.0.46-73.ent.x86_64.rpm mod_ssl-2.0.46-73.ent.x86_64.rpm Red Hat Enterprise Linux WS version 3: Source: ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/httpd-2.0.46-73.ent.src.rpm i386: httpd-2.0.46-73.ent.i386.rpm httpd-debuginfo-2.0.46-73.ent.i386.rpm httpd-devel-2.0.46-73.ent.i386.rpm mod_ssl-2.0.46-73.ent.i386.rpm ia64: httpd-2.0.46-73.ent.ia64.rpm httpd-debuginfo-2.0.46-73.ent.ia64.rpm httpd-devel-2.0.46-73.ent.ia64.rpm mod_ssl-2.0.46-73.ent.ia64.rpm x86_64: httpd-2.0.46-73.ent.x86_64.rpm httpd-debuginfo-2.0.46-73.ent.x86_64.rpm httpd-devel-2.0.46-73.ent.x86_64.rpm mod_ssl-2.0.46-73.ent.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://www.redhat.com/security/team/key/#package 7. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0023 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1955 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1956 http://www.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is . More contact details at https://www.redhat.com/security/team/contact/ Copyright 2009 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFKOB8pXlSAg2UNWIIRAofrAKCpHn1UokIT9wXA9NJ/i/b6GFb5KgCeOuL/ 5V5DfI6gBAgUZpq/HGlDPBY= =JR4g -----END PGP SIGNATURE----- -- Share this post Link to post
