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Red Hat Enterprise Linux 8 RHSA-2021:0218-01 Important Heap Overflow

red hat
Calendar Grey January 26, 2021
Dist Redhat Esm H88
Critical security patch for CentOS 8 issued as significant. Addresses buffer overflow vulnerability for improved protection.
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.
Security Fix(es):
* sudo: Heap buffer overflow in argument parsing (CVE-2021-3156)
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 security update Red Hat buffer overflow important sudo heap overflow CVE-2021-3156

References

https://access.redhat.com/security/cve/CVE-2021-3156 https://access.redhat.com/security/updates/classification#important https://access.redhat.com/security/vulnerabilities/RHSB-2021-002

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: sudo-1.8.29-6.el8_3.1.src.rpm
aarch64: sudo-1.8.29-6.el8_3.1.aarch64.rpm sudo-debuginfo-1.8.29-6.el8_3.1.aarch64.rpm sudo-debugsource-1.8.29-6.el8_3.1.aarch64.rpm
ppc64le: sudo-1.8.29-6.el8_3.1.ppc64le.rpm sudo-debuginfo-1.8.29-6.el8_3.1.ppc64le.rpm sudo-debugsource-1.8.29-6.el8_3.1.ppc64le.rpm
s390x: sudo-1.8.29-6.el8_3.1.s390x.rpm sudo-debuginfo-1.8.29-6.el8_3.1.s390x.rpm sudo-debugsource-1.8.29-6.el8_3.1.s390x.rpm
x86_64: sudo-1.8.29-6.el8_3.1.x86_64.rpm sudo-debuginfo-1.8.29-6.el8_3.1.x86_64.rpm sudo-debugsource-1.8.29-6.el8_3.1.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


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:0218-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0218
Issue date: 2021-01-26

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 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 security update Red Hat buffer overflow important sudo heap overflow CVE-2021-3156

Relevant Releases Architectures

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

Bugs Fixed

1917684 - CVE-2021-3156 sudo: Heap buffer overflow in argument parsing

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