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Debian: DSA-2021-0554-01 Critical: Sudo Vulnerability Fix

red hat
Calendar Grey March 2, 2021
Dist Redhat Esm H88
A critical security update for Ubuntu Linux focuses on vulnerabilities related to data exposure and unauthorized access.
An update is now available for Red Hat Enterprise Linux 8.1 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

This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.
Security Fix(es):
* kernel: bad kfree in auditfilter.c may lead to escalation of privilege (CVE-2020-0444)
* kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661)
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 Red Hat kernel update privilege escalation important Red Hat Enterprise memory issue kpatch-patch kpatch

References

https://access.redhat.com/security/cve/CVE-2020-0444 https://access.redhat.com/security/cve/CVE-2020-29661 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS EUS (v. 8.1):
Source: kpatch-patch-4_18_0-147_13_2-1-8.el8_1.src.rpm kpatch-patch-4_18_0-147_20_1-1-7.el8_1.src.rpm kpatch-patch-4_18_0-147_24_2-1-5.el8_1.src.rpm kpatch-patch-4_18_0-147_27_1-1-5.el8_1.src.rpm kpatch-patch-4_18_0-147_32_1-1-3.el8_1.src.rpm kpatch-patch-4_18_0-147_34_1-1-3.el8_1.src.rpm kpatch-patch-4_18_0-147_38_1-1-2.el8_1.src.rpm kpatch-patch-4_18_0-147_8_1-1-10.el8_1.src.rpm
ppc64le: kpatch-patch-4_18_0-147_13_2-1-8.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_13_2-debuginfo-1-8.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_13_2-debugsource-1-8.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_20_1-1-7.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_20_1-debuginfo-1-7.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_20_1-debugsource-1-7.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_24_2-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_24_2-debuginfo-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_24_2-debugsource-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_27_1-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_27_1-debuginfo-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_27_1-debugsource-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_32_1-1-3.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_32_1-debuginfo-1-3.el8_1.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:0689-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0689
Issue date: 2021-03-02

Topic

An update is now available for Red Hat Enterprise Linux 8.1 Extended UpdateSupport.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 Red Hat kernel update privilege escalation important Red Hat Enterprise memory issue kpatch-patch kpatch

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS EUS (v. 8.1) - ppc64le, x86_64

Bugs Fixed

1906525 - CVE-2020-29661 kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free

1920474 - CVE-2020-0444 kernel: bad kfree in auditfilter.c may lead to escalation of privilege

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