RedHat: RHSA-2020-3803:01 Moderate: bash security update
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.
Summary
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
References
https://access.redhat.com/security/cve/CVE-2019-9924 https://access.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux Server AUS (v. 7.4):
Source:
bash-4.2.46-30.el7_4.src.rpm
x86_64:
bash-4.2.46-30.el7_4.x86_64.rpm
bash-debuginfo-4.2.46-30.el7_4.x86_64.rpm
Red Hat Enterprise Linux Server E4S (v. 7.4):
Source:
bash-4.2.46-30.el7_4.src.rpm
ppc64le:
bash-4.2.46-30.el7_4.ppc64le.rpm
bash-debuginfo-4.2.46-30.el7_4.ppc64le.rpm
x86_64:
bash-4.2.46-30.el7_4.x86_64.rpm
bash-debuginfo-4.2.46-30.el7_4.x86_64.rpm
Red Hat Enterprise Linux Server TUS (v. 7.4):
Source:
bash-4.2.46-30.el7_4.src.rpm
x86_64:
bash-4.2.46-30.el7_4.x86_64.rpm
bash-debuginfo-4.2.46-30.el7_4.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 7.4):
x86_64:
bash-debuginfo-4.2.46-30.el7_4.x86_64.rpm
bash-doc-4.2.46-30.el7_4.x86_64.rpm
Red Hat Enterprise Linux Server Optional E4S (v. 7.4):
ppc64le:
bash-debuginfo-4.2.46-30.el7_4.ppc64le.rpm
bash-doc-4.2.46-30.el7_4.ppc64le.rpm
x86_64:
bash-debuginfo-4.2.46-30.el7_4.x86_64.rpm
bash-doc-4.2.46-30.el7_4.x86_64.rpm
Red Hat Enterprise Linux Server Optional TUS (v. 7.4):
x86_64:
bash-debuginfo-4.2.46-30.el7_4.x86_64.rpm
bash-doc-4.2.46-30.el7_4.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/
Topic
An update for bash is now available for Red Hat Enterprise Linux 7.4Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended UpdateSupport, and Red Hat Enterprise Linux 7.4 Update Services for SAPSolutions.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.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Server AUS (v. 7.4) - x86_64
Red Hat Enterprise Linux Server E4S (v. 7.4) - ppc64le, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.4) - x86_64
Red Hat Enterprise Linux Server Optional E4S (v. 7.4) - ppc64le, x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 7.4) - x86_64
Red Hat Enterprise Linux Server TUS (v. 7.4) - x86_64
Bugs Fixed
1691774 - CVE-2019-9924 bash: BASH_CMD is writable in restricted bash shells