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Red Hat Enterprise Linux 6 RHSA-2020:0726 Important: Sudo Buffer Overflow

red hat
Calendar Grey March 5, 2020
Dist Redhat Esm H88
An urgent sudo patch for Red Hat Enterprise Linux 6 resolves significant buffer overflow vulnerabilities. Maintain your security!
An update for sudo is now available for Red Hat Enterprise Linux 6

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 sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root.
Security Fix(es):
* sudo: Stack based buffer overflow when pwfeedback is enabled (CVE-2019-18634)
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 buffer overflow software update Red Hat Enterprise Linux important sudo

References

https://access.redhat.com/security/cve/CVE-2019-18634 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: sudo-1.8.6p3-29.el6_10.3.src.rpm
i386: sudo-1.8.6p3-29.el6_10.3.i686.rpm sudo-debuginfo-1.8.6p3-29.el6_10.3.i686.rpm
x86_64: sudo-1.8.6p3-29.el6_10.3.x86_64.rpm sudo-debuginfo-1.8.6p3-29.el6_10.3.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386: sudo-debuginfo-1.8.6p3-29.el6_10.3.i686.rpm sudo-devel-1.8.6p3-29.el6_10.3.i686.rpm
x86_64: sudo-debuginfo-1.8.6p3-29.el6_10.3.i686.rpm sudo-debuginfo-1.8.6p3-29.el6_10.3.x86_64.rpm sudo-devel-1.8.6p3-29.el6_10.3.i686.rpm sudo-devel-1.8.6p3-29.el6_10.3.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source: sudo-1.8.6p3-29.el6_10.3.src.rpm
x86_64: sudo-1.8.6p3-29.el6_10.3.x86_64.rpm sudo-debuginfo-1.8.6p3-29.el6_10.3.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
x86_64: sudo-debuginfo-1.8.6p3-29.el6_10.3.i686.rpm sudo-debuginfo-1.8.6p3-29.el6_10.3.x86_64.rpm sudo-devel-1.8.6p3-29.el6_10.3.i686.rpm sudo-devel-1.8.6p3-29.el6_10.3.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: sudo-1.8.6p3-29.el6_10.3.src.rpm
i386: sudo-1.8.6p3-29.el6_10.3.i686.rpm sudo-debuginfo-1.8.6p3-29.el6_10.3.i686.rpm
ppc64: sudo-1.8.6p3-29.el6_10.3.ppc64.rpm sudo-debuginfo-1.8.6p3-29.el6_10.3.ppc64.rpm
s390x: sudo-1.8.6p3-29.el6_10.3.s390x.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:0726-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:0726
Issue date: 2020-03-05

Topic

An update for sudo is now available for Red Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory buffer overflow software update Red Hat Enterprise Linux important sudo

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

1796944 - CVE-2019-18634 sudo: Stack based buffer overflow when pwfeedback is enabled

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