RHSA-2021:1031: Important: kpatch-patch security update
First published: Tue 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/tty_jobctrl.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 | Affected Version | How to fix |
|---|---|---|
| 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 |
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Reference Links
Frequently Asked Questions
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.
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.
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.
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.
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.
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