RHSA-2021:1031: Important: kpatch-patch security update
Published Mar 30, 2021
·Updated
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.<br>Security Fix(es):<br><li> kernel: locking issue in drivers/tty/ttyjobctrl.c can lead to an use-after-free (CVE-2020-29661)</li> 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.
Affected Software
55 affected componentsFixes available
redhat/kpatch-patch<3_10_0-1062_21_1-1-3.el7
3_10_0-1062_21_1-1-3.el7
redhat/kpatch-patch<3_10_0-1062_26_1-1-1.el7
3_10_0-1062_26_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_30_1-1-1.el7
3_10_0-1062_30_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_31_2-1-1.el7
3_10_0-1062_31_2-1-1.el7
redhat/kpatch-patch<3_10_0-1062_31_3-1-1.el7
3_10_0-1062_31_3-1-1.el7
redhat/kpatch-patch<3_10_0-1062_33_1-1-1.el7
3_10_0-1062_33_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_36_1-1-1.el7
3_10_0-1062_36_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_37_1-1-1.el7
3_10_0-1062_37_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_40_1-1-1.el7
3_10_0-1062_40_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_43_1-1-1.el7
3_10_0-1062_43_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_45_1-1-1.el7
3_10_0-1062_45_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_21_1-1-3.el7
3_10_0-1062_21_1-1-3.el7
redhat/kpatch-patch<3_10_0-1062_21_1-debuginfo-1-3.el7
3_10_0-1062_21_1-debuginfo-1-3.el7
redhat/kpatch-patch<3_10_0-1062_26_1-1-1.el7
3_10_0-1062_26_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_26_1-debuginfo-1-1.el7
3_10_0-1062_26_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_30_1-1-1.el7
3_10_0-1062_30_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_30_1-debuginfo-1-1.el7
3_10_0-1062_30_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_31_2-1-1.el7
3_10_0-1062_31_2-1-1.el7
redhat/kpatch-patch<3_10_0-1062_31_2-debuginfo-1-1.el7
3_10_0-1062_31_2-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_31_3-1-1.el7
3_10_0-1062_31_3-1-1.el7
redhat/kpatch-patch<3_10_0-1062_31_3-debuginfo-1-1.el7
3_10_0-1062_31_3-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_33_1-1-1.el7
3_10_0-1062_33_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_33_1-debuginfo-1-1.el7
3_10_0-1062_33_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_36_1-1-1.el7
3_10_0-1062_36_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_36_1-debuginfo-1-1.el7
3_10_0-1062_36_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_37_1-1-1.el7
3_10_0-1062_37_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_37_1-debuginfo-1-1.el7
3_10_0-1062_37_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_40_1-1-1.el7
3_10_0-1062_40_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_40_1-debuginfo-1-1.el7
3_10_0-1062_40_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_43_1-1-1.el7
3_10_0-1062_43_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_43_1-debuginfo-1-1.el7
3_10_0-1062_43_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_45_1-1-1.el7
3_10_0-1062_45_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_45_1-debuginfo-1-1.el7
3_10_0-1062_45_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_21_1-1-3.el7
3_10_0-1062_21_1-1-3.el7
redhat/kpatch-patch<3_10_0-1062_21_1-debuginfo-1-3.el7
3_10_0-1062_21_1-debuginfo-1-3.el7
redhat/kpatch-patch<3_10_0-1062_26_1-1-1.el7
3_10_0-1062_26_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_26_1-debuginfo-1-1.el7
3_10_0-1062_26_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_30_1-1-1.el7
3_10_0-1062_30_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_30_1-debuginfo-1-1.el7
3_10_0-1062_30_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_31_2-1-1.el7
3_10_0-1062_31_2-1-1.el7
redhat/kpatch-patch<3_10_0-1062_31_2-debuginfo-1-1.el7
3_10_0-1062_31_2-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_31_3-1-1.el7
3_10_0-1062_31_3-1-1.el7
redhat/kpatch-patch<3_10_0-1062_31_3-debuginfo-1-1.el7
3_10_0-1062_31_3-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_33_1-1-1.el7
3_10_0-1062_33_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_33_1-debuginfo-1-1.el7
3_10_0-1062_33_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_36_1-1-1.el7
3_10_0-1062_36_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_36_1-debuginfo-1-1.el7
3_10_0-1062_36_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_37_1-1-1.el7
3_10_0-1062_37_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_37_1-debuginfo-1-1.el7
3_10_0-1062_37_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_40_1-1-1.el7
3_10_0-1062_40_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_40_1-debuginfo-1-1.el7
3_10_0-1062_40_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_43_1-1-1.el7
3_10_0-1062_43_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_43_1-debuginfo-1-1.el7
3_10_0-1062_43_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1062_45_1-1-1.el7
3_10_0-1062_45_1-1-1.el7
redhat/kpatch-patch<3_10_0-1062_45_1-debuginfo-1-1.el7
3_10_0-1062_45_1-debuginfo-1-1.el7
Remediation
Event History
Jun 24, 2024
Advisory Published
via Red Hat·01:26 AM
Frequently Asked Questions
1
What is the severity of RHSA-2021:1031?
The RHSA-2021:1031 vulnerability has a critical severity rating due to the potential for a use-after-free condition.
2
How do I fix RHSA-2021:1031?
To resolve the RHSA-2021:1031 vulnerability, update to the latest version of the kpatch-patch package as specified in the advisory.
3
What affected systems are vulnerable to RHSA-2021:1031?
Systems running Red Hat Enterprise Linux that are using the vulnerable kpatch-patch versions are affected by RHSA-2021:1031.
4
What types of issues does CVE-2020-29661 fix as related to RHSA-2021:1031?
CVE-2020-29661 addresses a locking issue in drivers/tty/tty_jobctrl.c that could lead to a use-after-free vulnerability.
5
Is there a workaround for RHSA-2021:1031?
There is no official workaround provided for the RHSA-2021:1031 vulnerability; upgrading to a secure version is recommended.