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Red Hat Enterprise Linux 7: RHSA-2019-2118-01 Moderate: glibc Security Fix

red hat
Calendar Grey August 6, 2019
Dist Redhat Esm H88
Red Hat has released a significant security patch for glibc impacting RHEL 7, targeting various vulnerabilities. Implement this update immediately!
An update for glibc is now available for Red Hat Enterprise Linux 7

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.

Summary

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.

Topics%20covered

Topics Covered

security advisory moderate Red Hat bug fix security fix glibc C library

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

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

Read the Full Advisory


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

Topic

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 impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat bug fix security fix glibc C library

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

Bugs Fixed

1039304 - glibc: More precise DNS name checks (accepting dash-., among other things)

1347549 - CVE-2016-10739 glibc: getaddrinfo should reject IP addresses with trailing characters1443872 - 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]

Read the Full Advisory

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