Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions update for kpatch-patch
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2023-5178 |
| CWE-ID | CWE-416 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
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_97_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_91_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_108_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-4_18_0-305_103_1 (Red Hat package) Operating systems & Components / Operating system package or component |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Use-after-free
EUVDB-ID: #VU82658
Risk: Low
CVSSv4.0: 7.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]
CVE-ID: CVE-2023-5178
CWE-ID:
CWE-416 - Use After Free
Exploit availability: Yes
DescriptionThe vulnerability allows a local authenticated user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the drivers/nvme/target/tcp.c in nvmet_tcp_free_crypto due to a logical bug in the NVMe-oF/TCP subsystem in the Linux kernel. A local authenticated user can trigger a use-after-free error and escalate privileges on the system.
MitigationInstall updates from vendor's website.
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.4
kpatch-patch-4_18_0-305_97_1 (Red Hat package): before 1-3.el8_4
kpatch-patch-4_18_0-305_91_1 (Red Hat package): before 1-4.el8_4
kpatch-patch-4_18_0-305_108_1 (Red Hat package): before 1-1.el8_4
kpatch-patch-4_18_0-305_103_1 (Red Hat package): before 1-2.el8_4
CPE2.3- cpe:2.3:a:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:kpatch-patch-4_18_0-305_97_1_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:kpatch-patch-4_18_0-305_91_1_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:kpatch-patch-4_18_0-305_108_1_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:kpatch-patch-4_18_0-305_103_1_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2023:7559
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.
