Red Hat Enterprise Linux 8.4 Extended Update Support update for kpatch-patch
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-1158 |
| CWE-ID | CWE-787 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Red Hat Enterprise Linux Server - TUS Operating systems & Components / Operating system Red Hat Enterprise Linux Server - AUS Operating systems & Components / Operating system Red Hat Enterprise Linux for x86_64 - Extended Update Support Operating systems & Components / Operating system kpatch-patch-4_18_0-305_65_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_62_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_57_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_49_1 (Red Hat package) Operating systems & Components / Operating system package or component |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Out-of-bounds write
EUVDB-ID: #VU63166
Risk: Medium
CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2022-1158
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
Description The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due the KVM implementation in Linux kernel does not properly perform guest page table updates in some situations. A remote user on the guest operating system can trigger memory corruption and perform a denial of service attack against the host OS.
Install updates from vendor's website.
Red Hat Enterprise Linux Server - TUS: 8.4
Red Hat Enterprise Linux Server - AUS: 8.4
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 8.4
kpatch-patch-4_18_0-305_65_1 (Red Hat package): before 1-1.el8_4
kpatch-patch-4_18_0-305_62_1 (Red Hat package): before 1-2.el8_4
kpatch-patch-4_18_0-305_57_1 (Red Hat package): before 1-2.el8_4
kpatch-patch-4_18_0-305_49_1 (Red Hat package): before 1-3.el8_4
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_tus:8.4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:8.4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_x86_64_-_extended_update_support:8.4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:kpatch-patch-4_18_0-305_65_1_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:kpatch-patch-4_18_0-305_62_1_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:kpatch-patch-4_18_0-305_57_1_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:kpatch-patch-4_18_0-305_49_1_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2022:8686
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
