RHBA-2011:0584 - Bug Fix Advisory

Topic

Updated glibc packages that fix numerous bugs and add various enhancements are
now available for Red Hat Enterprise Linux 6.

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.

These updated packages contain a number of bug fixes and enhancements,
which are documented in detail in the Technical Notes, linked in the
References.

All users of glibc are advised to upgrade to these updated packages,
which resolve these issues.

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
https://access.redhat.com/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 615090 - MALLOC_PERTURB_ lacks documentation
• BZ - 615701 - RHEL 6 beta 2 glibc does not load nosegneg libraries on a 32-bit Xen domU system
• BZ - 641128 - memmem, strstr, and strcasestr are broken
• BZ - 647448 - strchr (x86-64/multiarch/SSE4.2) handles second parameter incorrectly
• BZ - 652661 - Including <sys/timex.h> causes compile errors.
• BZ - 653905 - rpmbuild of glibc fails on unpackaged files when %_enable_debug_packages not set
• BZ - 656014 - nscd host caching does not respect DNS TTLs
• BZ - 661982 - memmove/wmemmove/wmemset __restrict fixes
• BZ - 689471 - SSE4 strncmp failure
• BZ - 692177 - sysconf(_SC_*CACHE) returns 0 for all caches on some CPUs.

CVEs

(none)

References

• http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.1_Technical_Notes/index.html#glibc