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RedHat: RHSA-2020-1804 Moderate: Sudo Bug Fix and Security Issue

red hat
Calendar Grey April 28, 2020
Dist Redhat Esm H88
Red Hat publishes a moderate security advisory regarding the sudo upgrade in Enterprise Linux 8 in response to the impacts of CVE-2019-19232.
An update for sudo is now available for Red Hat Enterprise Linux 8

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.
The following packages have been upgraded to a later upstream version: sudo (1.8.29). (BZ#1733961)
Security Fix(es):
* sudo: attacker with access to a Runas ALL sudoer account can impersonate a nonexistent user (CVE-2019-19232)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.2 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory security issue bug fix Red Hat Enterprise Linux moderate severity sudo utility

References

https://access.redhat.com/security/cve/CVE-2019-19232 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.2_release_notes/index

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: sudo-1.8.29-5.el8.src.rpm
aarch64: sudo-1.8.29-5.el8.aarch64.rpm sudo-debuginfo-1.8.29-5.el8.aarch64.rpm sudo-debugsource-1.8.29-5.el8.aarch64.rpm
ppc64le: sudo-1.8.29-5.el8.ppc64le.rpm sudo-debuginfo-1.8.29-5.el8.ppc64le.rpm sudo-debugsource-1.8.29-5.el8.ppc64le.rpm
s390x: sudo-1.8.29-5.el8.s390x.rpm sudo-debuginfo-1.8.29-5.el8.s390x.rpm sudo-debugsource-1.8.29-5.el8.s390x.rpm
x86_64: sudo-1.8.29-5.el8.x86_64.rpm sudo-debuginfo-1.8.29-5.el8.x86_64.rpm sudo-debugsource-1.8.29-5.el8.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/


Advisory ID: RHSA-2020:1804-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1804
Issue date: 2020-04-28

Topic

An update for sudo is now available for Red Hat Enterprise Linux 8.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 security issue bug fix Red Hat Enterprise Linux moderate severity sudo utility

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

1679508 - sudo does not work with notbefore/after using sssd

1715516 - sudo-1.8.19p2-10.el7.x86_64 NOTBEFORE showing value of sudoNotAfter Ldap attribute

1733961 - Rebase SUDO to the latest upstream version

1786704 - CVE-2019-19232 sudo: attacker with access to a Runas ALL sudoer account can impersonate a nonexistent user

1796518 - [RFE] add optional check for the target user shell

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