RHSA-2021:3044: Important: kpatch-patch security update
First published: Tue Aug 10 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: race condition in net/can/bcm.c leads to local privilege escalation (CVE-2021-3609)</li> <li> kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543)</li> <li> kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555)</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 | <4_18_0-305-1-4.el8 | 4_18_0-305-1-4.el8 |
| redhat/kpatch-patch | <4_18_0-305_10_2-1-1.el8_4 | 4_18_0-305_10_2-1-1.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_3_1-1-3.el8_4 | 4_18_0-305_3_1-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_7_1-1-2.el8_4 | 4_18_0-305_7_1-1-2.el8_4 |
| redhat/kpatch-patch | <4_18_0-305-1-4.el8 | 4_18_0-305-1-4.el8 |
| redhat/kpatch-patch | <4_18_0-305-debuginfo-1-4.el8 | 4_18_0-305-debuginfo-1-4.el8 |
| redhat/kpatch-patch | <4_18_0-305-debugsource-1-4.el8 | 4_18_0-305-debugsource-1-4.el8 |
| redhat/kpatch-patch | <4_18_0-305_10_2-1-1.el8_4 | 4_18_0-305_10_2-1-1.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_10_2-debuginfo-1-1.el8_4 | 4_18_0-305_10_2-debuginfo-1-1.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_10_2-debugsource-1-1.el8_4 | 4_18_0-305_10_2-debugsource-1-1.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_3_1-1-3.el8_4 | 4_18_0-305_3_1-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_3_1-debuginfo-1-3.el8_4 | 4_18_0-305_3_1-debuginfo-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_3_1-debugsource-1-3.el8_4 | 4_18_0-305_3_1-debugsource-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_7_1-1-2.el8_4 | 4_18_0-305_7_1-1-2.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_7_1-debuginfo-1-2.el8_4 | 4_18_0-305_7_1-debuginfo-1-2.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_7_1-debugsource-1-2.el8_4 | 4_18_0-305_7_1-debugsource-1-2.el8_4 |
| redhat/kpatch-patch | <4_18_0-305-1-4.el8 | 4_18_0-305-1-4.el8 |
| redhat/kpatch-patch | <4_18_0-305-debuginfo-1-4.el8 | 4_18_0-305-debuginfo-1-4.el8 |
| redhat/kpatch-patch | <4_18_0-305-debugsource-1-4.el8 | 4_18_0-305-debugsource-1-4.el8 |
| redhat/kpatch-patch | <4_18_0-305_10_2-1-1.el8_4 | 4_18_0-305_10_2-1-1.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_10_2-debuginfo-1-1.el8_4 | 4_18_0-305_10_2-debuginfo-1-1.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_10_2-debugsource-1-1.el8_4 | 4_18_0-305_10_2-debugsource-1-1.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_3_1-1-3.el8_4 | 4_18_0-305_3_1-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_3_1-debuginfo-1-3.el8_4 | 4_18_0-305_3_1-debuginfo-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_3_1-debugsource-1-3.el8_4 | 4_18_0-305_3_1-debugsource-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_7_1-1-2.el8_4 | 4_18_0-305_7_1-1-2.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_7_1-debuginfo-1-2.el8_4 | 4_18_0-305_7_1-debuginfo-1-2.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_7_1-debugsource-1-2.el8_4 | 4_18_0-305_7_1-debugsource-1-2.el8_4 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- agent/description
- agent/event
- agent/first-publish-date
- agent/last-modified-date
- agent/references
- agent/remedy
- agent/severity
- agent/softwarecombine
- agent/tags
- agent/title
- agent/type
- agent/weakness
- collector/redhat-errata
- source/Red Hat
- anchor-id/RHSA-2021:3044
- agent/software-canonical-lookup
- package-manager/redhat