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Red Hat 7 RHSA-2021:0348-01 Moderate: glibc Security Fix and Updates

red hat
Calendar Grey February 2, 2021
Dist Redhat Esm H88
Canonical has issued a significant security patch for OpenSSL tackling a range of vulnerabilities. Discover additional information here.
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: buffer over-read in iconv when processing invalid multi-byte input sequences in the EUC-KR encoding (CVE-2019-25013)
* 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.
Bug Fix(es):
* glibc: 64bit_strstr_via_64bit_strstr_sse2_unaligned detection fails with large device and inode numbers (BZ#1883162)
* glibc: Performance regression in ebizzy benchmark (BZ#1889977)

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat update buffer overflow bug fix Red Hat Enterprise Linux glibc

References

https://access.redhat.com/security/cve/CVE-2019-25013 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

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: glibc-2.17-322.el7_9.src.rpm
x86_64: glibc-2.17-322.el7_9.i686.rpm glibc-2.17-322.el7_9.x86_64.rpm glibc-common-2.17-322.el7_9.x86_64.rpm glibc-debuginfo-2.17-322.el7_9.i686.rpm glibc-debuginfo-2.17-322.el7_9.x86_64.rpm glibc-debuginfo-common-2.17-322.el7_9.i686.rpm glibc-debuginfo-common-2.17-322.el7_9.x86_64.rpm glibc-devel-2.17-322.el7_9.i686.rpm glibc-devel-2.17-322.el7_9.x86_64.rpm glibc-headers-2.17-322.el7_9.x86_64.rpm glibc-utils-2.17-322.el7_9.x86_64.rpm nscd-2.17-322.el7_9.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: glibc-debuginfo-2.17-322.el7_9.i686.rpm glibc-debuginfo-2.17-322.el7_9.x86_64.rpm glibc-debuginfo-common-2.17-322.el7_9.i686.rpm glibc-debuginfo-common-2.17-322.el7_9.x86_64.rpm glibc-static-2.17-322.el7_9.i686.rpm glibc-static-2.17-322.el7_9.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: glibc-2.17-322.el7_9.src.rpm
x86_64: glibc-2.17-322.el7_9.i686.rpm glibc-2.17-322.el7_9.x86_64.rpm glibc-common-2.17-322.el7_9.x86_64.rpm glibc-debuginfo-2.17-322.el7_9.i686.rpm glibc-debuginfo-2.17-322.el7_9.x86_64.rpm glibc-debuginfo-common-2.17-322.el7_9.i686.rpm glibc-debuginfo-common-2.17-322.el7_9.x86_64.rpm glibc-devel-2.17-322.el7_9.i686.rpm

Read the Full Advisory


Advisory ID: RHSA-2021:0348-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0348
Issue date: 2021-02-02

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 security update Red Hat update buffer overflow bug fix Red Hat Enterprise Linux glibc

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

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

1912960 - CVE-2019-25013 glibc: buffer over-read in iconv when processing invalid multi-byte input sequences in the EUC-KR encoding

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