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====================================================================                   
Red Hat Security Advisory

Synopsis:          Moderate: glibc security and bug fix update
Advisory ID:       RHSA-2019:2118-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:2118
Issue date:        2019-08-06
CVE Names:         CVE-2016-10739
====================================================================
1. Summary:

An update for glibc is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. 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.

Security Fix(es):

* glibc: getaddrinfo should reject IP addresses with trailing characters
(CVE-2016-10739)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.7 Release Notes linked from the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

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

For the update to take effect, all services linked to the glibc library
must be restarted, or the system rebooted.

5. Bugs fixed (https://bugzilla.redhat.com/):

1039304 - glibc: More precise DNS name checks (accepting dash-.example.com, among other things)
1347549 - CVE-2016-10739 glibc: getaddrinfo should reject IP addresses with trailing characters
1443872 - glibc: Terminate process on invalid netlink response from kernel
1488370 - nscd: Add a comment to the default nscd.conf file that is it not recommended to use NSCD and SSSD for the same NSS maps
1555189 - glibc: The Japanese Era name will be changed on May 1, 2019 [rhel-7.7.0]
1579354 - glibc: Initialize msg_flags to zero for sendmmsg in resolver
1579730 - glibc: Fix i386 sigaction sa_restorer initialization
1579739 - glibc: Fix stack overflow with huge PT_NOTE segment
1591268 - glibc: Problem with iconv converting ISO8859-1 to IBM273 [rhel-7]
1592475 - glibc headers: add ipc STAT_ANY constants
1595191 - glibc: Backport libio vtable validation improvements
1609067 - pldd does not wait for SIGSTOP after PTRACE_ATTACH
1640764 - glibc-rh1505492-prototypes-intl.patch causes intermittent problems building glibc
1641981 - glibc: Incorrect analysis of x86 CPU properties selects wrong string functions
1646373 - glibc: Crash in getaddrinfo_a when thread creation fails
1647490 - glibc: stdlib/test-bz22786 test suite failure on s390x [rhel-7.7]
1661508 - glibc: Adjust to rpm's find-debuginfo.sh changes, to keep stripping binaries [rhel-7.7]
1662842 - glibc: realloc ncopies integer overflow [rhel-7]
1684874 - glibc: Add more Linux definitions to <netinet/in.h>, including IP*_PMTUDISC_OMIT

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
glibc-2.17-292.el7.src.rpm

x86_64:
glibc-2.17-292.el7.i686.rpm
glibc-2.17-292.el7.x86_64.rpm
glibc-common-2.17-292.el7.x86_64.rpm
glibc-debuginfo-2.17-292.el7.i686.rpm
glibc-debuginfo-2.17-292.el7.x86_64.rpm
glibc-debuginfo-common-2.17-292.el7.i686.rpm
glibc-debuginfo-common-2.17-292.el7.x86_64.rpm
glibc-devel-2.17-292.el7.i686.rpm
glibc-devel-2.17-292.el7.x86_64.rpm
glibc-headers-2.17-292.el7.x86_64.rpm
glibc-utils-2.17-292.el7.x86_64.rpm
nscd-2.17-292.el7.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
glibc-debuginfo-2.17-292.el7.i686.rpm
glibc-debuginfo-2.17-292.el7.x86_64.rpm
glibc-debuginfo-common-2.17-292.el7.i686.rpm
glibc-debuginfo-common-2.17-292.el7.x86_64.rpm
glibc-static-2.17-292.el7.i686.rpm
glibc-static-2.17-292.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
glibc-2.17-292.el7.src.rpm

x86_64:
glibc-2.17-292.el7.i686.rpm
glibc-2.17-292.el7.x86_64.rpm
glibc-common-2.17-292.el7.x86_64.rpm
glibc-debuginfo-2.17-292.el7.i686.rpm
glibc-debuginfo-2.17-292.el7.x86_64.rpm
glibc-debuginfo-common-2.17-292.el7.i686.rpm
glibc-debuginfo-common-2.17-292.el7.x86_64.rpm
glibc-devel-2.17-292.el7.i686.rpm
glibc-devel-2.17-292.el7.x86_64.rpm
glibc-headers-2.17-292.el7.x86_64.rpm
glibc-utils-2.17-292.el7.x86_64.rpm
nscd-2.17-292.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
glibc-debuginfo-2.17-292.el7.i686.rpm
glibc-debuginfo-2.17-292.el7.x86_64.rpm
glibc-debuginfo-common-2.17-292.el7.i686.rpm
glibc-debuginfo-common-2.17-292.el7.x86_64.rpm
glibc-static-2.17-292.el7.i686.rpm
glibc-static-2.17-292.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
glibc-2.17-292.el7.src.rpm

ppc64:
glibc-2.17-292.el7.ppc.rpm
glibc-2.17-292.el7.ppc64.rpm
glibc-common-2.17-292.el7.ppc64.rpm
glibc-debuginfo-2.17-292.el7.ppc.rpm
glibc-debuginfo-2.17-292.el7.ppc64.rpm
glibc-debuginfo-common-2.17-292.el7.ppc.rpm
glibc-debuginfo-common-2.17-292.el7.ppc64.rpm
glibc-devel-2.17-292.el7.ppc.rpm
glibc-devel-2.17-292.el7.ppc64.rpm
glibc-headers-2.17-292.el7.ppc64.rpm
glibc-utils-2.17-292.el7.ppc64.rpm
nscd-2.17-292.el7.ppc64.rpm

ppc64le:
glibc-2.17-292.el7.ppc64le.rpm
glibc-common-2.17-292.el7.ppc64le.rpm
glibc-debuginfo-2.17-292.el7.ppc64le.rpm
glibc-debuginfo-common-2.17-292.el7.ppc64le.rpm
glibc-devel-2.17-292.el7.ppc64le.rpm
glibc-headers-2.17-292.el7.ppc64le.rpm
glibc-utils-2.17-292.el7.ppc64le.rpm
nscd-2.17-292.el7.ppc64le.rpm

s390x:
glibc-2.17-292.el7.s390.rpm
glibc-2.17-292.el7.s390x.rpm
glibc-common-2.17-292.el7.s390x.rpm
glibc-debuginfo-2.17-292.el7.s390.rpm
glibc-debuginfo-2.17-292.el7.s390x.rpm
glibc-debuginfo-common-2.17-292.el7.s390.rpm
glibc-debuginfo-common-2.17-292.el7.s390x.rpm
glibc-devel-2.17-292.el7.s390.rpm
glibc-devel-2.17-292.el7.s390x.rpm
glibc-headers-2.17-292.el7.s390x.rpm
glibc-utils-2.17-292.el7.s390x.rpm
nscd-2.17-292.el7.s390x.rpm

x86_64:
glibc-2.17-292.el7.i686.rpm
glibc-2.17-292.el7.x86_64.rpm
glibc-common-2.17-292.el7.x86_64.rpm
glibc-debuginfo-2.17-292.el7.i686.rpm
glibc-debuginfo-2.17-292.el7.x86_64.rpm
glibc-debuginfo-common-2.17-292.el7.i686.rpm
glibc-debuginfo-common-2.17-292.el7.x86_64.rpm
glibc-devel-2.17-292.el7.i686.rpm
glibc-devel-2.17-292.el7.x86_64.rpm
glibc-headers-2.17-292.el7.x86_64.rpm
glibc-utils-2.17-292.el7.x86_64.rpm
nscd-2.17-292.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
glibc-debuginfo-2.17-292.el7.ppc.rpm
glibc-debuginfo-2.17-292.el7.ppc64.rpm
glibc-debuginfo-common-2.17-292.el7.ppc.rpm
glibc-debuginfo-common-2.17-292.el7.ppc64.rpm
glibc-static-2.17-292.el7.ppc.rpm
glibc-static-2.17-292.el7.ppc64.rpm

ppc64le:
glibc-debuginfo-2.17-292.el7.ppc64le.rpm
glibc-debuginfo-common-2.17-292.el7.ppc64le.rpm
glibc-static-2.17-292.el7.ppc64le.rpm

s390x:
glibc-debuginfo-2.17-292.el7.s390.rpm
glibc-debuginfo-2.17-292.el7.s390x.rpm
glibc-debuginfo-common-2.17-292.el7.s390.rpm
glibc-debuginfo-common-2.17-292.el7.s390x.rpm
glibc-static-2.17-292.el7.s390.rpm
glibc-static-2.17-292.el7.s390x.rpm

x86_64:
glibc-debuginfo-2.17-292.el7.i686.rpm
glibc-debuginfo-2.17-292.el7.x86_64.rpm
glibc-debuginfo-common-2.17-292.el7.i686.rpm
glibc-debuginfo-common-2.17-292.el7.x86_64.rpm
glibc-static-2.17-292.el7.i686.rpm
glibc-static-2.17-292.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
glibc-2.17-292.el7.src.rpm

x86_64:
glibc-2.17-292.el7.i686.rpm
glibc-2.17-292.el7.x86_64.rpm
glibc-common-2.17-292.el7.x86_64.rpm
glibc-debuginfo-2.17-292.el7.i686.rpm
glibc-debuginfo-2.17-292.el7.x86_64.rpm
glibc-debuginfo-common-2.17-292.el7.i686.rpm
glibc-debuginfo-common-2.17-292.el7.x86_64.rpm
glibc-devel-2.17-292.el7.i686.rpm
glibc-devel-2.17-292.el7.x86_64.rpm
glibc-headers-2.17-292.el7.x86_64.rpm
glibc-utils-2.17-292.el7.x86_64.rpm
nscd-2.17-292.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
glibc-debuginfo-2.17-292.el7.i686.rpm
glibc-debuginfo-2.17-292.el7.x86_64.rpm
glibc-debuginfo-common-2.17-292.el7.i686.rpm
glibc-debuginfo-common-2.17-292.el7.x86_64.rpm
glibc-static-2.17-292.el7.i686.rpm
glibc-static-2.17-292.el7.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/

7. References:

https://access.redhat.com/security/cve/CVE-2016-10739
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.7_release_notes/index

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2019 Red Hat, Inc.
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