Red Hat Enterprise Linux 8.4 Extended Update Support update for kpatch-patch
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-27666 |
| CWE-ID | CWE-122 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
kpatch-patch-4_18_0-305_7_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_40_2 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_40_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_3_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_34_2 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_30_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_28_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_25_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_19_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_17_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_12_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_10_2 (Red Hat package) Operating systems & Components / Operating system package or component Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions Operating systems & Components / Operating system package or component Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_45_1 (Red Hat package) Operating systems & Components / Operating system package or component Red Hat Enterprise Linux Server - TUS Operating systems & Components / Operating system Red Hat Enterprise Linux for Power, little endian - Extended Update Support 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 |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Heap-based buffer overflow
EUVDB-ID: #VU61672
Risk: Low
CVSSv4.0: 6.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]
CVE-ID: CVE-2022-27666
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c in Linux kernel. A local unprivileged user can pass specially crafted data to the system, trigger a heap-based buffer overflow and execute arbitrary code with elevated privileges.
Install updates from vendor's website.
kpatch-patch-4_18_0-305_7_1 (Red Hat package): 1-1.el8_4 - 1-10.el8_4
kpatch-patch-4_18_0-305_40_2 (Red Hat package): 1-1.el8_4
kpatch-patch-4_18_0-305_40_1 (Red Hat package): 1-1.el8_4
kpatch-patch-4_18_0-305_3_1 (Red Hat package): 1-1.el8_4 - 1-11.el8_4
kpatch-patch-4_18_0-305_34_2 (Red Hat package): 1-1.el8_4 - 1-2.el8_4
kpatch-patch-4_18_0-305_30_1 (Red Hat package): 1-2.el8_4 - 1-4.el8_4
kpatch-patch-4_18_0-305_28_1 (Red Hat package): 1-2.el8_4 - 1-4.el8_4
kpatch-patch-4_18_0-305_25_1 (Red Hat package): 1-2.el8_4 - 1-6.el8_4
kpatch-patch-4_18_0-305_19_1 (Red Hat package): 1-1.el8_4 - 1-7.el8_4
kpatch-patch-4_18_0-305_17_1 (Red Hat package): 1-1.el8_4 - 1-7.el8_4
kpatch-patch-4_18_0-305_12_1 (Red Hat package): 1-2.el8_4 - 1-8.el8_4
kpatch-patch-4_18_0-305_10_2 (Red Hat package): 1-3.el8_4 - 1-9.el8_4
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions: 8.4
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.4
Red Hat Enterprise Linux Server - TUS: 8.4
Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 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_45_1 (Red Hat package): before 1-1.el8_4
CPE2.3- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_7_1_redhat_package:1-1.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_7_1_redhat_package:1-4.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_7_1_redhat_package:1-6.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_40_2_redhat_package:1-1.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_40_1_redhat_package:1-1.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_3_1_redhat_package:1-1.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_3_1_redhat_package:1-2.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_3_1_redhat_package:1-5.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_34_2_redhat_package:1-1.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_34_2_redhat_package:1-2.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_30_1_redhat_package:1-2.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_28_1_redhat_package:1-2.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_25_1_redhat_package:1-2.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_19_1_redhat_package:1-1.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_17_1_redhat_package:1-1.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_12_1_redhat_package:1-2.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kpatch-patch-4_18_0-305_10_2_redhat_package:1-3.el8_4:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:*
- 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_for_power_little_endian_-_extended_update_support: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:o:red_hat:kpatch-patch-4_18_0-305_45_1_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2022:4809
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
