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=====================================================================
Red Hat Security Advisory
Synopsis: Moderate: glibc security update
Advisory ID: RHSA-2021:2998-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2998
Issue date: 2021-08-03
CVE Names: CVE-2020-10029 CVE-2020-29573
=====================================================================
1. Summary:
An update for glibc is now available for Red Hat Enterprise Linux 7.7
Extended Update Support.
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 ComputeNode EUS (v. 7.7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) - x86_64
Red Hat Enterprise Linux Server EUS (v. 7.7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 7.7) - ppc64, ppc64le, s390x,
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: stack corruption from crafted input in cosl, sinl, sincosl, and
tanl functions (CVE-2020-10029)
* glibc: stack-based buffer overflow if the input to any of the printf
family of functions is an 80-bit long double with a non-canonical bit
pattern (CVE-2020-29573)
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.
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/):
1810670 - CVE-2020-10029 glibc: stack corruption from crafted input in cosl,
sinl, sincosl, and tanl functions
1905213 - CVE-2020-29573 glibc: stack-based buffer overflow if the input to any
of the printf family of functions is an 80-bit long double with a non-canonical bit pattern
6. Package List:
Red Hat Enterprise Linux ComputeNode EUS (v. 7.7):
Source:
glibc-2.17-292.el7_7.2.src.rpm
x86_64:
glibc-2.17-292.el7_7.2.i686.rpm
glibc-2.17-292.el7_7.2.x86_64.rpm
glibc-common-2.17-292.el7_7.2.x86_64.rpm
glibc-debuginfo-2.17-292.el7_7.2.i686.rpm
glibc-debuginfo-2.17-292.el7_7.2.x86_64.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.i686.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.x86_64.rpm
glibc-devel-2.17-292.el7_7.2.i686.rpm
glibc-devel-2.17-292.el7_7.2.x86_64.rpm
glibc-headers-2.17-292.el7_7.2.x86_64.rpm
glibc-utils-2.17-292.el7_7.2.x86_64.rpm
nscd-2.17-292.el7_7.2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7):
x86_64:
glibc-debuginfo-2.17-292.el7_7.2.i686.rpm
glibc-debuginfo-2.17-292.el7_7.2.x86_64.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.i686.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.x86_64.rpm
glibc-static-2.17-292.el7_7.2.i686.rpm
glibc-static-2.17-292.el7_7.2.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.7):
Source:
glibc-2.17-292.el7_7.2.src.rpm
ppc64:
glibc-2.17-292.el7_7.2.ppc.rpm
glibc-2.17-292.el7_7.2.ppc64.rpm
glibc-common-2.17-292.el7_7.2.ppc64.rpm
glibc-debuginfo-2.17-292.el7_7.2.ppc.rpm
glibc-debuginfo-2.17-292.el7_7.2.ppc64.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.ppc.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.ppc64.rpm
glibc-devel-2.17-292.el7_7.2.ppc.rpm
glibc-devel-2.17-292.el7_7.2.ppc64.rpm
glibc-headers-2.17-292.el7_7.2.ppc64.rpm
glibc-utils-2.17-292.el7_7.2.ppc64.rpm
nscd-2.17-292.el7_7.2.ppc64.rpm
ppc64le:
glibc-2.17-292.el7_7.2.ppc64le.rpm
glibc-common-2.17-292.el7_7.2.ppc64le.rpm
glibc-debuginfo-2.17-292.el7_7.2.ppc64le.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.ppc64le.rpm
glibc-devel-2.17-292.el7_7.2.ppc64le.rpm
glibc-headers-2.17-292.el7_7.2.ppc64le.rpm
glibc-utils-2.17-292.el7_7.2.ppc64le.rpm
nscd-2.17-292.el7_7.2.ppc64le.rpm
s390x:
glibc-2.17-292.el7_7.2.s390.rpm
glibc-2.17-292.el7_7.2.s390x.rpm
glibc-common-2.17-292.el7_7.2.s390x.rpm
glibc-debuginfo-2.17-292.el7_7.2.s390.rpm
glibc-debuginfo-2.17-292.el7_7.2.s390x.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.s390.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.s390x.rpm
glibc-devel-2.17-292.el7_7.2.s390.rpm
glibc-devel-2.17-292.el7_7.2.s390x.rpm
glibc-headers-2.17-292.el7_7.2.s390x.rpm
glibc-utils-2.17-292.el7_7.2.s390x.rpm
nscd-2.17-292.el7_7.2.s390x.rpm
x86_64:
glibc-2.17-292.el7_7.2.i686.rpm
glibc-2.17-292.el7_7.2.x86_64.rpm
glibc-common-2.17-292.el7_7.2.x86_64.rpm
glibc-debuginfo-2.17-292.el7_7.2.i686.rpm
glibc-debuginfo-2.17-292.el7_7.2.x86_64.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.i686.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.x86_64.rpm
glibc-devel-2.17-292.el7_7.2.i686.rpm
glibc-devel-2.17-292.el7_7.2.x86_64.rpm
glibc-headers-2.17-292.el7_7.2.x86_64.rpm
glibc-utils-2.17-292.el7_7.2.x86_64.rpm
nscd-2.17-292.el7_7.2.x86_64.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 7.7):
ppc64:
glibc-debuginfo-2.17-292.el7_7.2.ppc.rpm
glibc-debuginfo-2.17-292.el7_7.2.ppc64.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.ppc.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.ppc64.rpm
glibc-static-2.17-292.el7_7.2.ppc.rpm
glibc-static-2.17-292.el7_7.2.ppc64.rpm
ppc64le:
glibc-debuginfo-2.17-292.el7_7.2.ppc64le.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.ppc64le.rpm
glibc-static-2.17-292.el7_7.2.ppc64le.rpm
s390x:
glibc-debuginfo-2.17-292.el7_7.2.s390.rpm
glibc-debuginfo-2.17-292.el7_7.2.s390x.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.s390.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.s390x.rpm
glibc-static-2.17-292.el7_7.2.s390.rpm
glibc-static-2.17-292.el7_7.2.s390x.rpm
x86_64:
glibc-debuginfo-2.17-292.el7_7.2.i686.rpm
glibc-debuginfo-2.17-292.el7_7.2.x86_64.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.i686.rpm
glibc-debuginfo-common-2.17-292.el7_7.2.x86_64.rpm
glibc-static-2.17-292.el7_7.2.i686.rpm
glibc-static-2.17-292.el7_7.2.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-2020-10029
https://access.redhat.com/security/cve/CVE-2020-29573
https://access.redhat.com/security/updates/classification/#moderate
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
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