Red Hat Enterprise Linux 8 update for linux-firmware
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2022-27635 CVE-2022-40964 CVE-2022-46329 CVE-2023-20592 |
| CWE-ID | CWE-284 CWE-693 CWE-758 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
Red Hat Enterprise Linux Server - AUS Operating systems & Components / Operating system linux-firmware (Red Hat package) Operating systems & Components / Operating system package or component |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Improper access control
EUVDB-ID: #VU79501
Risk: Low
CVSSv4.0: 5.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2022-27635
CWE-ID:
CWE-284 - Improper Access Control
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper access restrictions. A local user can bypass implemented security restrictions and execute arbitrary code with elevated privileges.
Install updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 8.2
linux-firmware (Red Hat package): before 20240419-102.git055dfa8e.el8_2
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:8.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:linux-firmware_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2024:4575
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.
2) Improper access control
EUVDB-ID: #VU79502
Risk: Low
CVSSv4.0: 5.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2022-40964
CWE-ID:
CWE-284 - Improper Access Control
Exploit availability: No
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper access restrictions. A local user can bypass implemented security restrictions and execute arbitrary code with elevated privileges.
Install updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 8.2
linux-firmware (Red Hat package): before 20240419-102.git055dfa8e.el8_2
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:8.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:linux-firmware_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2024:4575
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.
3) Protection Mechanism Failure
EUVDB-ID: #VU79525
Risk: Low
CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2022-46329
CWE-ID:
CWE-693 - Protection Mechanism Failure
Exploit availability: No
DescriptionThe vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to insufficient implementation of security measures. A local user can bypass implemented security restrictions and elevate privileges on the system.
MitigationInstall updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 8.2
linux-firmware (Red Hat package): before 20240419-102.git055dfa8e.el8_2
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:8.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:linux-firmware_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2024:4575
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.
4) Reliance on undefined behavior
EUVDB-ID: #VU84028
Risk: Low
CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-20592
CWE-ID:
CWE-758 - Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to unexpected behavior of the INVD instruction in some AMD CPUs. A malicious hypervisor can affect cache line write-back behavior of the CPU and modify guest virtual machine (VM) memory.
MitigationInstall updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 8.2
linux-firmware (Red Hat package): before 20240419-102.git055dfa8e.el8_2
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:8.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:linux-firmware_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2024:4575
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.
