-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: glibc security and bug fix update Advisory ID: RHSA-2012:1097-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1097.html Issue date: 2012-07-18 CVE Names: CVE-2012-3406 ===================================================================== 1. Summary: Updated glibc packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 3. Description: The glibc packages provide the standard C and standard math libraries used by multiple programs on the system. Without these libraries, the Linux system cannot function properly. It was discovered that the formatted printing functionality in glibc did not properly restrict the use of alloca(). This could allow an attacker to bypass FORTIFY_SOURCE protections and execute arbitrary code using a format string flaw in an application, even though these protections are expected to limit the impact of such flaws to an application abort. (CVE-2012-3406) This update also fixes the following bug: * If a file or a string was in the IBM-930 encoding, and contained the invalid multibyte character "0xffff", attempting to use iconv() (or the iconv command) to convert that file or string to another encoding, such as UTF-8, resulted in a segmentation fault. With this update, the conversion code for the IBM-930 encoding recognizes this invalid character and calls an error handler, rather than causing a segmentation fault. (BZ#837896) All users of glibc are advised to upgrade to these updated packages, which contain backported patches to fix these issues. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 5. Bugs fixed (http://bugzilla.redhat.com/): 826943 - CVE-2012-3406 glibc: printf() unbound alloca() usage in case of positional parameters + many format specs 6. Package List: Red Hat Enterprise Linux Desktop (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/glibc-2.5-81.el5_8.4.src.rpm i386: glibc-2.5-81.el5_8.4.i386.rpm glibc-2.5-81.el5_8.4.i686.rpm glibc-common-2.5-81.el5_8.4.i386.rpm glibc-debuginfo-2.5-81.el5_8.4.i386.rpm glibc-debuginfo-2.5-81.el5_8.4.i686.rpm glibc-debuginfo-common-2.5-81.el5_8.4.i386.rpm glibc-devel-2.5-81.el5_8.4.i386.rpm glibc-headers-2.5-81.el5_8.4.i386.rpm glibc-utils-2.5-81.el5_8.4.i386.rpm nscd-2.5-81.el5_8.4.i386.rpm x86_64: glibc-2.5-81.el5_8.4.i686.rpm glibc-2.5-81.el5_8.4.x86_64.rpm glibc-common-2.5-81.el5_8.4.x86_64.rpm glibc-debuginfo-2.5-81.el5_8.4.i386.rpm glibc-debuginfo-2.5-81.el5_8.4.i686.rpm glibc-debuginfo-2.5-81.el5_8.4.x86_64.rpm glibc-debuginfo-common-2.5-81.el5_8.4.i386.rpm glibc-devel-2.5-81.el5_8.4.i386.rpm glibc-devel-2.5-81.el5_8.4.x86_64.rpm glibc-headers-2.5-81.el5_8.4.x86_64.rpm glibc-utils-2.5-81.el5_8.4.x86_64.rpm nscd-2.5-81.el5_8.4.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/glibc-2.5-81.el5_8.4.src.rpm i386: glibc-2.5-81.el5_8.4.i386.rpm glibc-2.5-81.el5_8.4.i686.rpm glibc-common-2.5-81.el5_8.4.i386.rpm glibc-debuginfo-2.5-81.el5_8.4.i386.rpm glibc-debuginfo-2.5-81.el5_8.4.i686.rpm glibc-debuginfo-common-2.5-81.el5_8.4.i386.rpm glibc-devel-2.5-81.el5_8.4.i386.rpm glibc-headers-2.5-81.el5_8.4.i386.rpm glibc-utils-2.5-81.el5_8.4.i386.rpm nscd-2.5-81.el5_8.4.i386.rpm ia64: glibc-2.5-81.el5_8.4.i686.rpm glibc-2.5-81.el5_8.4.ia64.rpm glibc-common-2.5-81.el5_8.4.ia64.rpm glibc-debuginfo-2.5-81.el5_8.4.i686.rpm glibc-debuginfo-2.5-81.el5_8.4.ia64.rpm glibc-devel-2.5-81.el5_8.4.ia64.rpm glibc-headers-2.5-81.el5_8.4.ia64.rpm glibc-utils-2.5-81.el5_8.4.ia64.rpm nscd-2.5-81.el5_8.4.ia64.rpm ppc: glibc-2.5-81.el5_8.4.ppc.rpm glibc-2.5-81.el5_8.4.ppc64.rpm glibc-common-2.5-81.el5_8.4.ppc.rpm glibc-debuginfo-2.5-81.el5_8.4.ppc.rpm glibc-debuginfo-2.5-81.el5_8.4.ppc64.rpm glibc-devel-2.5-81.el5_8.4.ppc.rpm glibc-devel-2.5-81.el5_8.4.ppc64.rpm glibc-headers-2.5-81.el5_8.4.ppc.rpm glibc-utils-2.5-81.el5_8.4.ppc.rpm nscd-2.5-81.el5_8.4.ppc.rpm s390x: glibc-2.5-81.el5_8.4.s390.rpm glibc-2.5-81.el5_8.4.s390x.rpm glibc-common-2.5-81.el5_8.4.s390x.rpm glibc-debuginfo-2.5-81.el5_8.4.s390.rpm glibc-debuginfo-2.5-81.el5_8.4.s390x.rpm glibc-devel-2.5-81.el5_8.4.s390.rpm glibc-devel-2.5-81.el5_8.4.s390x.rpm glibc-headers-2.5-81.el5_8.4.s390x.rpm glibc-utils-2.5-81.el5_8.4.s390x.rpm nscd-2.5-81.el5_8.4.s390x.rpm x86_64: glibc-2.5-81.el5_8.4.i686.rpm glibc-2.5-81.el5_8.4.x86_64.rpm glibc-common-2.5-81.el5_8.4.x86_64.rpm glibc-debuginfo-2.5-81.el5_8.4.i386.rpm glibc-debuginfo-2.5-81.el5_8.4.i686.rpm glibc-debuginfo-2.5-81.el5_8.4.x86_64.rpm glibc-debuginfo-common-2.5-81.el5_8.4.i386.rpm glibc-devel-2.5-81.el5_8.4.i386.rpm glibc-devel-2.5-81.el5_8.4.x86_64.rpm glibc-headers-2.5-81.el5_8.4.x86_64.rpm glibc-utils-2.5-81.el5_8.4.x86_64.rpm nscd-2.5-81.el5_8.4.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/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2012-3406.html https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2012 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFQBtY4XlSAg2UNWIIRAgxaAJ9JvAX7lw/9KWNIc7oiV83BY6HTawCfbCEK vp+gffA7Y5ZuRVrwAdccwa8= =HBmV -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce