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Red Hat Enterprise Linux 7.6 RHSA-2020-3474-01 Moderate: Bash Update

red hat
Calendar Grey August 18, 2020
Dist Redhat Esm H88
A critical software patch has been released for Red Hat Enterprise Linux 7.6 concerning bash vulnerabilities identified as CVE-2019-9924. Further information can be found within.
An update for bash is now available for Red Hat Enterprise Linux 7.6 Extended Update Support

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

Summary

The bash packages provide Bash (Bourne-again shell), which is the default shell for Red Hat Enterprise Linux.
Security Fix(es):
* bash: BASH_CMD is writable in restricted bash shells (CVE-2019-9924)
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.

Topics%20covered

Topics Covered

security advisory moderate security fix Red Hat Enterprise Linux bash bash update CVE-2019-9924

References

https://access.redhat.com/security/cve/CVE-2019-9924 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux ComputeNode EUS (v. 7.6):
Source: bash-4.2.46-32.el7_6.src.rpm
x86_64: bash-4.2.46-32.el7_6.x86_64.rpm bash-debuginfo-4.2.46-32.el7_6.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6):
x86_64: bash-debuginfo-4.2.46-32.el7_6.x86_64.rpm bash-doc-4.2.46-32.el7_6.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.6):
Source: bash-4.2.46-32.el7_6.src.rpm
ppc64: bash-4.2.46-32.el7_6.ppc64.rpm bash-debuginfo-4.2.46-32.el7_6.ppc64.rpm
ppc64le: bash-4.2.46-32.el7_6.ppc64le.rpm bash-debuginfo-4.2.46-32.el7_6.ppc64le.rpm
s390x: bash-4.2.46-32.el7_6.s390x.rpm bash-debuginfo-4.2.46-32.el7_6.s390x.rpm
x86_64: bash-4.2.46-32.el7_6.x86_64.rpm bash-debuginfo-4.2.46-32.el7_6.x86_64.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):
Source: bash-4.2.46-32.el7_6.src.rpm
aarch64: bash-4.2.46-32.el7_6.aarch64.rpm bash-debuginfo-4.2.46-32.el7_6.aarch64.rpm
ppc64le: bash-4.2.46-32.el7_6.ppc64le.rpm bash-debuginfo-4.2.46-32.el7_6.ppc64le.rpm
s390x: bash-4.2.46-32.el7_6.s390x.rpm bash-debuginfo-4.2.46-32.el7_6.s390x.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 7.6):
ppc64: bash-debuginfo-4.2.46-32.el7_6.ppc64.rpm bash-doc-4.2.46-32.el7_6.ppc64.rpm
ppc64le: bash-debuginfo-4.2.46-32.el7_6.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:3474-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3474
Issue date: 2020-08-18

Topic

An update for bash is now available for Red Hat Enterprise Linux 7.6Extended Update Support.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 fix Red Hat Enterprise Linux bash bash update CVE-2019-9924

Relevant Releases Architectures

Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) - x86_64

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) - x86_64

Red Hat Enterprise Linux Server EUS (v. 7.6) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 7.6) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le, s390x

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, ppc64le, s390x

Bugs Fixed

1691774 - CVE-2019-9924 bash: BASH_CMD is writable in restricted bash shells

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