RHSA-2021:2723: Important: kpatch-patch security update
Published Jul 20, 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.Security Fix(es): kernel: sizet-to-int conversion vulnerability in the filesystem layer (CVE-2021-33909) 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
63 affected componentsFixes available
redhat/kpatch-patch<4_18_0-147_24_2-1-11.el8_1
4_18_0-147_24_2-1-11.el8_1
redhat/kpatch-patch<4_18_0-147_27_1-1-11.el8_1
4_18_0-147_27_1-1-11.el8_1
redhat/kpatch-patch<4_18_0-147_32_1-1-9.el8_1
4_18_0-147_32_1-1-9.el8_1
redhat/kpatch-patch<4_18_0-147_34_1-1-9.el8_1
4_18_0-147_34_1-1-9.el8_1
redhat/kpatch-patch<4_18_0-147_38_1-1-8.el8_1
4_18_0-147_38_1-1-8.el8_1
redhat/kpatch-patch<4_18_0-147_43_1-1-6.el8_1
4_18_0-147_43_1-1-6.el8_1
redhat/kpatch-patch<4_18_0-147_44_1-1-5.el8_1
4_18_0-147_44_1-1-5.el8_1
redhat/kpatch-patch<4_18_0-147_48_1-1-2.el8_1
4_18_0-147_48_1-1-2.el8_1
redhat/kpatch-patch<4_18_0-147_51_1-1-1.el8_1
4_18_0-147_51_1-1-1.el8_1
redhat/kpatch-patch<4_18_0-147_24_2-1-11.el8_1
4_18_0-147_24_2-1-11.el8_1
redhat/kpatch-patch<4_18_0-147_24_2-debuginfo-1-11.el8_1
4_18_0-147_24_2-debuginfo-1-11.el8_1
redhat/kpatch-patch<4_18_0-147_24_2-debugsource-1-11.el8_1
4_18_0-147_24_2-debugsource-1-11.el8_1
redhat/kpatch-patch<4_18_0-147_27_1-1-11.el8_1
4_18_0-147_27_1-1-11.el8_1
redhat/kpatch-patch<4_18_0-147_27_1-debuginfo-1-11.el8_1
4_18_0-147_27_1-debuginfo-1-11.el8_1
redhat/kpatch-patch<4_18_0-147_27_1-debugsource-1-11.el8_1
4_18_0-147_27_1-debugsource-1-11.el8_1
redhat/kpatch-patch<4_18_0-147_32_1-1-9.el8_1
4_18_0-147_32_1-1-9.el8_1
redhat/kpatch-patch<4_18_0-147_32_1-debuginfo-1-9.el8_1
4_18_0-147_32_1-debuginfo-1-9.el8_1
redhat/kpatch-patch<4_18_0-147_32_1-debugsource-1-9.el8_1
4_18_0-147_32_1-debugsource-1-9.el8_1
redhat/kpatch-patch<4_18_0-147_34_1-1-9.el8_1
4_18_0-147_34_1-1-9.el8_1
redhat/kpatch-patch<4_18_0-147_34_1-debuginfo-1-9.el8_1
4_18_0-147_34_1-debuginfo-1-9.el8_1
redhat/kpatch-patch<4_18_0-147_34_1-debugsource-1-9.el8_1
4_18_0-147_34_1-debugsource-1-9.el8_1
redhat/kpatch-patch<4_18_0-147_38_1-1-8.el8_1
4_18_0-147_38_1-1-8.el8_1
redhat/kpatch-patch<4_18_0-147_38_1-debuginfo-1-8.el8_1
4_18_0-147_38_1-debuginfo-1-8.el8_1
redhat/kpatch-patch<4_18_0-147_38_1-debugsource-1-8.el8_1
4_18_0-147_38_1-debugsource-1-8.el8_1
redhat/kpatch-patch<4_18_0-147_43_1-1-6.el8_1
4_18_0-147_43_1-1-6.el8_1
redhat/kpatch-patch<4_18_0-147_43_1-debuginfo-1-6.el8_1
4_18_0-147_43_1-debuginfo-1-6.el8_1
redhat/kpatch-patch<4_18_0-147_43_1-debugsource-1-6.el8_1
4_18_0-147_43_1-debugsource-1-6.el8_1
redhat/kpatch-patch<4_18_0-147_44_1-1-5.el8_1
4_18_0-147_44_1-1-5.el8_1
redhat/kpatch-patch<4_18_0-147_44_1-debuginfo-1-5.el8_1
4_18_0-147_44_1-debuginfo-1-5.el8_1
redhat/kpatch-patch<4_18_0-147_44_1-debugsource-1-5.el8_1
4_18_0-147_44_1-debugsource-1-5.el8_1
redhat/kpatch-patch<4_18_0-147_48_1-1-2.el8_1
4_18_0-147_48_1-1-2.el8_1
redhat/kpatch-patch<4_18_0-147_48_1-debuginfo-1-2.el8_1
4_18_0-147_48_1-debuginfo-1-2.el8_1
redhat/kpatch-patch<4_18_0-147_48_1-debugsource-1-2.el8_1
4_18_0-147_48_1-debugsource-1-2.el8_1
redhat/kpatch-patch<4_18_0-147_51_1-1-1.el8_1
4_18_0-147_51_1-1-1.el8_1
redhat/kpatch-patch<4_18_0-147_51_1-debuginfo-1-1.el8_1
4_18_0-147_51_1-debuginfo-1-1.el8_1
redhat/kpatch-patch<4_18_0-147_51_1-debugsource-1-1.el8_1
4_18_0-147_51_1-debugsource-1-1.el8_1
redhat/kpatch-patch<4_18_0-147_24_2-1-11.el8_1
4_18_0-147_24_2-1-11.el8_1
redhat/kpatch-patch<4_18_0-147_24_2-debuginfo-1-11.el8_1
4_18_0-147_24_2-debuginfo-1-11.el8_1
redhat/kpatch-patch<4_18_0-147_24_2-debugsource-1-11.el8_1
4_18_0-147_24_2-debugsource-1-11.el8_1
redhat/kpatch-patch<4_18_0-147_27_1-1-11.el8_1
4_18_0-147_27_1-1-11.el8_1
redhat/kpatch-patch<4_18_0-147_27_1-debuginfo-1-11.el8_1
4_18_0-147_27_1-debuginfo-1-11.el8_1
redhat/kpatch-patch<4_18_0-147_27_1-debugsource-1-11.el8_1
4_18_0-147_27_1-debugsource-1-11.el8_1
redhat/kpatch-patch<4_18_0-147_32_1-1-9.el8_1
4_18_0-147_32_1-1-9.el8_1
redhat/kpatch-patch<4_18_0-147_32_1-debuginfo-1-9.el8_1
4_18_0-147_32_1-debuginfo-1-9.el8_1
redhat/kpatch-patch<4_18_0-147_32_1-debugsource-1-9.el8_1
4_18_0-147_32_1-debugsource-1-9.el8_1
redhat/kpatch-patch<4_18_0-147_34_1-1-9.el8_1
4_18_0-147_34_1-1-9.el8_1
redhat/kpatch-patch<4_18_0-147_34_1-debuginfo-1-9.el8_1
4_18_0-147_34_1-debuginfo-1-9.el8_1
redhat/kpatch-patch<4_18_0-147_34_1-debugsource-1-9.el8_1
4_18_0-147_34_1-debugsource-1-9.el8_1
redhat/kpatch-patch<4_18_0-147_38_1-1-8.el8_1
4_18_0-147_38_1-1-8.el8_1
redhat/kpatch-patch<4_18_0-147_38_1-debuginfo-1-8.el8_1
4_18_0-147_38_1-debuginfo-1-8.el8_1
redhat/kpatch-patch<4_18_0-147_38_1-debugsource-1-8.el8_1
4_18_0-147_38_1-debugsource-1-8.el8_1
redhat/kpatch-patch<4_18_0-147_43_1-1-6.el8_1
4_18_0-147_43_1-1-6.el8_1
redhat/kpatch-patch<4_18_0-147_43_1-debuginfo-1-6.el8_1
4_18_0-147_43_1-debuginfo-1-6.el8_1
redhat/kpatch-patch<4_18_0-147_43_1-debugsource-1-6.el8_1
4_18_0-147_43_1-debugsource-1-6.el8_1
redhat/kpatch-patch<4_18_0-147_44_1-1-5.el8_1
4_18_0-147_44_1-1-5.el8_1
redhat/kpatch-patch<4_18_0-147_44_1-debuginfo-1-5.el8_1
4_18_0-147_44_1-debuginfo-1-5.el8_1
redhat/kpatch-patch<4_18_0-147_44_1-debugsource-1-5.el8_1
4_18_0-147_44_1-debugsource-1-5.el8_1
redhat/kpatch-patch<4_18_0-147_48_1-1-2.el8_1
4_18_0-147_48_1-1-2.el8_1
redhat/kpatch-patch<4_18_0-147_48_1-debuginfo-1-2.el8_1
4_18_0-147_48_1-debuginfo-1-2.el8_1
redhat/kpatch-patch<4_18_0-147_48_1-debugsource-1-2.el8_1
4_18_0-147_48_1-debugsource-1-2.el8_1
redhat/kpatch-patch<4_18_0-147_51_1-1-1.el8_1
4_18_0-147_51_1-1-1.el8_1
redhat/kpatch-patch<4_18_0-147_51_1-debuginfo-1-1.el8_1
4_18_0-147_51_1-debuginfo-1-1.el8_1
redhat/kpatch-patch<4_18_0-147_51_1-debugsource-1-1.el8_1
4_18_0-147_51_1-debugsource-1-1.el8_1
Remediation
Event History
Jul 20, 2021
Advisory Published
via Red Hat·12:00 AM
Frequently Asked Questions
1
What is the severity of RHSA-2021:2723?
RHSA-2021:2723 has been classified as an important security issue by Red Hat.
2
How do I fix RHSA-2021:2723?
To fix RHSA-2021:2723, you should update to the patched versions of kpatch-patch provided by Red Hat.
3
What vulnerability is addressed by RHSA-2021:2723?
RHSA-2021:2723 addresses a size_t-to-int conversion vulnerability in the filesystem layer, identified as CVE-2021-33909.
4
Which systems are affected by RHSA-2021:2723?
RHSA-2021:2723 affects systems utilizing the vulnerable versions of the kpatch-patch package on Red Hat Enterprise Linux.
5
What is the impact of the vulnerability described in RHSA-2021:2723?
The impact of the vulnerability in RHSA-2021:2723 could potentially allow for denial of service or other security concerns.