Red Hat Enterprise Linux 9 update for microcode_ctl



Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2025-24495
CVE-2025-20012
CVE-2024-28956
CWE-ID CWE-909
CWE-696
CWE-399
Exploitation vector Local
Public exploit N/A
Vulnerable software
microcode_ctl (Red Hat package)
Operating systems & Components / Operating system package or component

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Missing initialization of resource

EUVDB-ID: #VU109169

Risk: Low

CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-24495

CWE-ID: CWE-909 - Missing initialization of resource

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to incorrect initialization of resource in the branch prediction unit. A local user can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

microcode_ctl (Red Hat package): before 20220207-1.20250512.1.el9_0

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2025:10103


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) Incorrect behavior order

EUVDB-ID: #VU109171

Risk: Low

CVSSv4.0: 0.6 [CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-20012

CWE-ID: CWE-696 - Incorrect Behavior Order

Exploit availability: No

Description

The vulnerability allows a local attacker to gain access to sensitive information on the system. The vulnerability exists due to incorrect behavior order. An attacker with physical access can disclose sensitive information on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

microcode_ctl (Red Hat package): before 20220207-1.20250512.1.el9_0

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2025:10103


Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Resource management error

EUVDB-ID: #VU109000

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U/U:Amber]

CVE-ID: CVE-2024-28956

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a malicious guest to escalate privileges on the system.

The vulnerability exists due to an error in the hardware support for prediction-domain isolation dubbed "Indirect Target Selection". A malicious guest can infer the contents of arbitrary host memory, including memory assigned to other guests.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

microcode_ctl (Red Hat package): before 20220207-1.20250512.1.el9_0

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2025:10103


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.



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