Red Hat Enterprise Linux 7 update for kernel

1) Information disclosure

EUVDB-ID: #VU64364

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-21123

CWE-ID:

Exploit availability:

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

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Workstation: 7

kernel (Red Hat package): before 3.10.0-1160.76.1.el7

Fixed software versions

CPE2.3

• cpe:2.3:o:red_hat:red_hat_enterprise_linux_workstation:7:*:*:*:*:red_hat_enterprise_linux:*:*

External links

http://access.redhat.com/errata/RHSA-2022:5937

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Information disclosure

EUVDB-ID: #VU64365

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-21125

CWE-ID:

Exploit availability:

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

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Workstation: 7

kernel (Red Hat package): before 3.10.0-1160.76.1.el7

Fixed software versions

CPE2.3

• cpe:2.3:o:red_hat:red_hat_enterprise_linux_workstation:7:*:*:*:*:red_hat_enterprise_linux:*:*

External links

http://access.redhat.com/errata/RHSA-2022:5937

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

3) Information disclosure

EUVDB-ID: #VU64366

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-21166

CWE-ID:

Exploit availability:

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

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Workstation: 7

kernel (Red Hat package): before 3.10.0-1160.76.1.el7

Fixed software versions

CPE2.3

• cpe:2.3:o:red_hat:red_hat_enterprise_linux_workstation:7:*:*:*:*:red_hat_enterprise_linux:*:*

External links

http://access.redhat.com/errata/RHSA-2022:5937

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

4) Security restrictions bypass

EUVDB-ID: #VU13631

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2018-13405

CWE-ID:

Exploit availability:

Description

The vulnerability allows a local attacker to create arbitrary files on the target system.

The vulnerability exists due to the inode_init_owner function, as defined in the fs/inode.c source code file, allows the creation of arbitrary files in set-group identification (SGID) directories. A local attacker can create arbitrary files with unintended group ownership.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Workstation: 7

kernel (Red Hat package): before 3.10.0-1160.76.1.el7

Fixed software versions

CPE2.3

• cpe:2.3:o:red_hat:red_hat_enterprise_linux_workstation:7:*:*:*:*:red_hat_enterprise_linux:*:*

External links

http://access.redhat.com/errata/RHSA-2022:5937

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?