news 28 Posted February 13, 2012 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: glibc security update Advisory ID: RHSA-2012:0126-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0126.html Issue date: 2012-02-13 CVE Names: CVE-2009-5029 CVE-2009-5064 CVE-2010-0830 CVE-2011-1089 CVE-2011-4609 ===================================================================== 1. Summary: Updated glibc packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team 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 (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 contain the standard C libraries used by multiple programs on the system. These packages contain the standard C and the standard math libraries. Without these two libraries, a Linux system cannot function properly. An integer overflow flaw, leading to a heap-based buffer overflow, was found in the way the glibc library read timezone files. If a carefully-crafted timezone file was loaded by an application linked against glibc, it could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2009-5029) A flaw was found in the way the ldd utility identified dynamically linked libraries. If an attacker could trick a user into running ldd on a malicious binary, it could result in arbitrary code execution with the privileges of the user running ldd. (CVE-2009-5064) An integer overflow flaw, leading to a heap-based buffer overflow, was found in the way the glibc library loaded ELF (Executable and Linking Format) files. If a carefully-crafted ELF file was loaded by an application linked against glibc, it could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2010-0830) It was found that the glibc addmntent() function, used by various mount helper utilities, did not handle certain errors correctly when up[censored] the mtab (mounted file systems table) file. If such utilities had the setuid bit set, a local attacker could use this flaw to corrupt the mtab file. (CVE-2011-1089) A denial of service flaw was found in the remote procedure call (RPC) implementation in glibc. A remote attacker able to open a large number of connections to an RPC service that is using the RPC implementation from glibc, could use this flaw to make that service use an excessive amount of CPU time. (CVE-2011-4609) Red Hat would like to thank the Ubuntu Security Team for reporting CVE-2010-0830, and Dan Rosenberg for reporting CVE-2011-1089. The Ubuntu Security Team acknowledges Dan Rosenberg as the original reporter of CVE-2010-0830. Users should upgrade to these updated packages, which resolve 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/kb/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 599056 - CVE-2010-0830 glibc: ld.so d_tag signedness error in elf_get_dynamic_info 688980 - CVE-2011-1089 glibc: Suid mount helpers fail to anticipate RLIMIT_FSIZE 692393 - CVE-2009-5064 glibc: ldd unexpected code execution issue 761245 - CVE-2009-5029 glibc: __tzfile_read integer overflow to buffer overflow 767299 - CVE-2011-4609 glibc: svc_run() produces high cpu usage when accept() fails with EMFILE error 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-2.5-65.el5_7.3.src.rpm i386: glibc-2.5-65.el5_7.3.i386.rpm glibc-2.5-65.el5_7.3.i686.rpm glibc-common-2.5-65.el5_7.3.i386.rpm glibc-debuginfo-2.5-65.el5_7.3.i386.rpm glibc-debuginfo-2.5-65.el5_7.3.i686.rpm glibc-debuginfo-common-2.5-65.el5_7.3.i386.rpm glibc-devel-2.5-65.el5_7.3.i386.rpm glibc-headers-2.5-65.el5_7.3.i386.rpm glibc-utils-2.5-65.el5_7.3.i386.rpm nscd-2.5-65.el5_7.3.i386.rpm x86_64: glibc-2.5-65.el5_7.3.i686.rpm glibc-2.5-65.el5_7.3.x86_64.rpm glibc-common-2.5-65.el5_7.3.x86_64.rpm glibc-debuginfo-2.5-65.el5_7.3.i386.rpm glibc-debuginfo-2.5-65.el5_7.3.i686.rpm glibc-debuginfo-2.5-65.el5_7.3.x86_64.rpm glibc-debuginfo-common-2.5-65.el5_7.3.i386.rpm glibc-devel-2.5-65.el5_7.3.i386.rpm glibc-devel-2.5-65.el5_7.3.x86_64.rpm glibc-headers-2.5-65.el5_7.3.x86_64.rpm glibc-utils-2.5-65.el5_7.3.x86_64.rpm nscd-2.5-65.el5_7.3.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/glibc-2.5-65.el5_7.3.src.rpm i386: glibc-2.5-65.el5_7.3.i386.rpm glibc-2.5-65.el5_7.3.i686.rpm glibc-common-2.5-65.el5_7.3.i386.rpm glibc-debuginfo-2.5-65.el5_7.3.i386.rpm glibc-debuginfo-2.5-65.el5_7.3.i686.rpm glibc-debuginfo-common-2.5-65.el5_7.3.i386.rpm glibc-devel-2.5-65.el5_7.3.i386.rpm glibc-headers-2.5-65.el5_7.3.i386.rpm glibc-utils-2.5-65.el5_7.3.i386.rpm nscd-2.5-65.el5_7.3.i386.rpm ia64: glibc-2.5-65.el5_7.3.i686.rpm glibc-2.5-65.el5_7.3.ia64.rpm glibc-common-2.5-65.el5_7.3.ia64.rpm glibc-debuginfo-2.5-65.el5_7.3.i686.rpm glibc-debuginfo-2.5-65.el5_7.3.ia64.rpm glibc-debuginfo-common-2.5-65.el5_7.3.i386.rpm glibc-devel-2.5-65.el5_7.3.ia64.rpm glibc-headers-2.5-65.el5_7.3.ia64.rpm glibc-utils-2.5-65.el5_7.3.ia64.rpm nscd-2.5-65.el5_7.3.ia64.rpm ppc: glibc-2.5-65.el5_7.3.ppc.rpm glibc-2.5-65.el5_7.3.ppc64.rpm glibc-common-2.5-65.el5_7.3.ppc.rpm glibc-debuginfo-2.5-65.el5_7.3.ppc.rpm glibc-debuginfo-2.5-65.el5_7.3.ppc64.rpm glibc-devel-2.5-65.el5_7.3.ppc.rpm glibc-devel-2.5-65.el5_7.3.ppc64.rpm glibc-headers-2.5-65.el5_7.3.ppc.rpm glibc-utils-2.5-65.el5_7.3.ppc.rpm nscd-2.5-65.el5_7.3.ppc.rpm s390x: glibc-2.5-65.el5_7.3.s390.rpm glibc-2.5-65.el5_7.3.s390x.rpm glibc-common-2.5-65.el5_7.3.s390x.rpm glibc-debuginfo-2.5-65.el5_7.3.s390.rpm glibc-debuginfo-2.5-65.el5_7.3.s390x.rpm glibc-devel-2.5-65.el5_7.3.s390.rpm glibc-devel-2.5-65.el5_7.3.s390x.rpm glibc-headers-2.5-65.el5_7.3.s390x.rpm glibc-utils-2.5-65.el5_7.3.s390x.rpm nscd-2.5-65.el5_7.3.s390x.rpm x86_64: glibc-2.5-65.el5_7.3.i686.rpm glibc-2.5-65.el5_7.3.x86_64.rpm glibc-common-2.5-65.el5_7.3.x86_64.rpm glibc-debuginfo-2.5-65.el5_7.3.i386.rpm glibc-debuginfo-2.5-65.el5_7.3.i686.rpm glibc-debuginfo-2.5-65.el5_7.3.x86_64.rpm glibc-debuginfo-common-2.5-65.el5_7.3.i386.rpm glibc-devel-2.5-65.el5_7.3.i386.rpm glibc-devel-2.5-65.el5_7.3.x86_64.rpm glibc-headers-2.5-65.el5_7.3.x86_64.rpm glibc-utils-2.5-65.el5_7.3.x86_64.rpm nscd-2.5-65.el5_7.3.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-2009-5029.html https://www.redhat.com/security/data/cve/CVE-2009-5064.html https://www.redhat.com/security/data/cve/CVE-2010-0830.html https://www.redhat.com/security/data/cve/CVE-2011-1089.html https://www.redhat.com/security/data/cve/CVE-2011-4609.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) iD8DBQFPOXS1XlSAg2UNWIIRAlkKAKCqV+P2ljdJ/Gs3RsNWRVu02WHk7ACeK3e1 lstguzhG2kLf0kUpOZaO07o= =UIcQ -----END PGP SIGNATURE----- -- Share this post Link to post
