Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions update for kernel



Published: 2022-10-12 | Updated: 2022-12-05
Risk Low
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2022-2588
CVE-2022-21123
CVE-2022-21125
CVE-2022-21166
CWE-ID CWE-415
CWE-200
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		kernel (Red Hat package)
Operating systems & Components / Operating system package or component

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Operating systems & Components / Operating system package or component

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Double Free

EUVDB-ID: #VU66397

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-2588

CWE-ID: CWE-415 - Double Free

Exploit availability: Yes

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a double free error within the network packet scheduler implementation in the route4_change() function in Linux kernel when removing all references to a route filter before freeing it. A local user can run a specially crafted program to crash the kernel or execute arbitrary code.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

kernel (Red Hat package): 4.18.0-147.0.2.el8_1 - 4.18.0-147.70.1.el8_1

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.1

CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:6872

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Information disclosure

EUVDB-ID: #VU64364

Risk: Low

CVSSv3.1:

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

Install updates from vendor's website.

Vulnerable software versions

kernel (Red Hat package): 4.18.0-147.0.2.el8_1 - 4.18.0-147.70.1.el8_1

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.1

CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:6872

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

3) Information disclosure

EUVDB-ID: #VU64365

Risk: Low

CVSSv3.1:

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

Install updates from vendor's website.

Vulnerable software versions

kernel (Red Hat package): 4.18.0-147.0.2.el8_1 - 4.18.0-147.70.1.el8_1

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.1

CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:6872

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

4) Information disclosure

EUVDB-ID: #VU64366

Risk: Low

CVSSv3.1:

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

Install updates from vendor's website.

Vulnerable software versions

kernel (Red Hat package): 4.18.0-147.0.2.el8_1 - 4.18.0-147.70.1.el8_1

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.1

CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:6872

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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