Debian update for intel-microcode



Risk Low
Patch available YES
Number of vulnerabilities 5
CVE-ID CVE-2022-21123
CVE-2022-21125
CVE-2022-21127
CVE-2022-21151
CVE-2022-21166
CWE-ID CWE-200
CWE-459
Exploitation vector Local
Public exploit N/A
Vulnerable software
 intel-microcode (Debian package)
Operating systems & Components / Operating system package or component

Vendor Debian

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU64364

Risk: Low

CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21123

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.


Mitigation

Update intel-microcode package to one of the following versions: 3.20220510.1~deb10u1, 3.20220510.1~deb11u1.

Vulnerable software versions

intel-microcode (Debian package): before 3.20220510.1~deb10u1

CPE2.3 External links

http://www.debian.org/security/2022/dsa-5178


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) Information disclosure

EUVDB-ID: #VU64365

Risk: Low

CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21125

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.



Mitigation

Update intel-microcode package to one of the following versions: 3.20220510.1~deb10u1, 3.20220510.1~deb11u1.

Vulnerable software versions

intel-microcode (Debian package): before 3.20220510.1~deb10u1

CPE2.3 External links

http://www.debian.org/security/2022/dsa-5178


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) Incomplete cleanup

EUVDB-ID: #VU64376

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21127

CWE-ID: CWE-459 - Incomplete cleanup

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information on the system.

The vulnerability exists due to incomplete cleanup in specific special register read operations. A local user can enable information disclosure.

Mitigation

Update intel-microcode package to one of the following versions: 3.20220510.1~deb10u1, 3.20220510.1~deb11u1.

Vulnerable software versions

intel-microcode (Debian package): before 3.20220510.1~deb10u1

CPE2.3 External links

http://www.debian.org/security/2022/dsa-5178


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) Information disclosure

EUVDB-ID: #VU63348

Risk: Low

CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21151

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The vulnerability exists due to an error during processor optimization removal or modification of security-critical code. A local privileged user can gain access to potentially sensitive information.

Mitigation

Update intel-microcode package to one of the following versions: 3.20220510.1~deb10u1, 3.20220510.1~deb11u1.

Vulnerable software versions

intel-microcode (Debian package): before 3.20220510.1~deb10u1

CPE2.3 External links

http://www.debian.org/security/2022/dsa-5178


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.

5) Information disclosure

EUVDB-ID: #VU64366

Risk: Low

CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21166

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.

Mitigation

Update intel-microcode package to one of the following versions: 3.20220510.1~deb10u1, 3.20220510.1~deb11u1.

Vulnerable software versions

intel-microcode (Debian package): before 3.20220510.1~deb10u1

CPE2.3 External links

http://www.debian.org/security/2022/dsa-5178


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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