RHBA-2005:096 - Bug Fix Advisory

Topic

Updated glibc packages that address several bugs are now available.

Description

The GNU libc packages (known as glibc) contain the standard C libraries
used by applications.

This erratum fixes the following bugs in the GNU C Library:

• stack alignment in LinuxThreads application or in clone(2) on IA-32

architecture

• rounding in alarm(2) on Itanium
• putenv(3) and setenv(3) in shared library constructors
• PowerPC rint(3) etc. functions
• reenables setcontext and getcontext functions on PowerPC

64-bit.

• AMD64 ecvt() returns "inf" for valid denormalized doubles
• ftruncate is now declared in POSIX 2003 compilations
• errno values set by futimes
• regular expression \B handling
• bugs in addseverity, fmemopen and rewinddir
• increased listen backlog for svctcp_create and svcunix_create
• vDSO computation of l_map_end and l_text_end
• initstate and initstate_r now properly preserve old state
• assembly fixes in IBM S/390 and S/390x optimized string operations
• fixes thread local storage handling in statically linked programs
• provides symlink and readlink prototypes even in
• D_POSIX_C_SOURCE=200112L namespace
• avoids using sigaction (SIGPIPE, ...) in syslog(3) implementation
• swapcontext and getcontext now properly restore CCR on powerpc64

All users of glibc should 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. Use Red Hat
Network to download and update your packages. To launch the Red Hat
Update Agent, use the following command:

up2date

For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:

http://www.redhat.com/docs/manuals/enterprise/

Affected Products

• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc

Fixes

• BZ - 140378 - [RHEL3] glibc behavior with long lines in /etc/hosts
• BZ - 142494 - IA64 math library is too old
• BZ - 143279 - x86_64 ecvt() returns "inf" for valid denormalized doubles
• BZ - 144303 - glibc 2.3.3/2.3.4 - chroot function fail and crash application (proftpd)
• BZ - 145689 - Unaligned stack pointer while initializing dynamic library
• BZ - 146210 - zdump -v GMT segfaults in x86_64
• BZ - 146588 - login via ssh fails to set secondary groups
• BZ - 146710 - pthread_getspecific gets non-NULL value for new key
• BZ - 146776 - "service nscd reload" cosmetic bug
• BZ - 147478 - nscd fails with big group in ldap

CVEs

(none)

References

(none)