RHBA-2019:0726 - Bug Fix Advisory

Topic

This update provides the required changes to support printing the new Japanese Era name and formatting dates with the era name.

Description

The glibc packages provide the standard C libraries (libc), POSIX thread
libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly.

This update fixes the following bug:

• Previously, a defect in the regular expression framework within glibc in some cases caused incorrect matches to be returned for multi-byte characters including such encodings as SHIFT_JIS. The incorrect matches sometimes caused system programs like sed to operate incorrectly, potentially matching and replacing the wrong bytes in a stream of multi-byte characters. The glibc regular expression framework has been fixed to correct this defect, and system programs like sed will operate correctly in all multi-byte character sets. (BZ#1668169)

In addition, this update adds the following enhancement:

• The GNU C Library now provides correct Japanese era name formatting for the REIWA era starting May 1st, 2019. The time handling API data has been updated including the data used by strftime and strptime. All APIs will correctly print the REIWA era including when strftime is used along with one of the era conversion specifiers e.g. %EC, %EY, or %Ey. (BZ#1555930)

Users of glibc are advised to upgrade to these updated packages, which fix this bug and add this enhancement.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

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 x86_64
• 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 - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 1555930 - glibc: The Japanese Era name will be changed on May 1, 2019 [rhel-6.10.z]

CVEs

(none)

References

(none)