SB2023010524 - Multiple vulnerabilities in Dell VxFlex ReadyNode and Dell VxFlex ESXi
Published: January 5, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 20 secuirty vulnerabilities.
1) Use of Out-of-range Pointer Offset (CVE-ID: CVE-2021-0189)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to use of out-of-range pointer offset in the BIOS firmware. A local user can execute arbitrary code with elevated privileges.
2) Information disclosure (CVE-ID: CVE-2022-21166)
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.
3) Incomplete cleanup (CVE-ID: CVE-2022-21127)
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.
4) Information disclosure (CVE-ID: CVE-2022-21125)
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.
5) Information disclosure (CVE-ID: CVE-2022-21123)
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.
6) Unchecked Return Value (CVE-ID: CVE-2021-0155)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to unchecked return value in the BIOS firmware. A local user can gain access to potentially sensitive information.
7) Return of pointer value outside of expected range (CVE-ID: CVE-2021-0188)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to a boundary error in the BIOS firmware. A local user can force the firmware to return pointer value outside of expected range and gain access to potentially sensitive information.
8) Input validation error (CVE-ID: CVE-2021-0159)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to insufficient validation of user-supplied input in the BIOS authenticated code module. A local user can pass specially crafted data to the affected module and execute arbitrary code on the system with elevated privileges.
9) Unintended proxy or intermediary (CVE-ID: CVE-2021-33103)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to presence of an unintended proxy in the BIOS authenticated code module. A local user can execute arbitrary code with elevated privileges.
10) Out-of-bounds write (CVE-ID: CVE-2021-33124)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in the BIOS authenticated code module. A local user can run a specially crafted program to trigger an out-of-bounds write error and execute arbitrary code with elevated privileges.
11) Insufficient Control Flow Management (CVE-ID: CVE-2021-33122)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to insufficient control flow management in the BIOS firmware. A local user can run a specially crafted program to execute arbitrary code with elevated privileges.
12) Uncaught Exception (CVE-ID: CVE-2021-0190)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to uncaught exception in the BIOS firmware. A local user can run a specially crafted program to execute arbitrary code with elevated privileges.
13) Improper access control (CVE-ID: CVE-2021-33123)
The vulnerability allows a local user to escalate privileges on the system
The vulnerability exists due to improper access restrictions in the BIOS authenticated code module. A local user can obtain elevated privileges on the system.
14) Out-of-bounds write (CVE-ID: CVE-2021-0153)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in the BIOS firmware. A local user can run a specially crafted program to trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
15) Input validation error (CVE-ID: CVE-2021-0154)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to insufficient validation of user-supplied input in the BIOS firmware. A local user can escalate privileges on the system.
16) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-21136)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient policy enforcement in WebView in Google Chrome. A remote attacker can trick the victim to visit a specially crafted website, bypass implemented security measures and gain access to sensitive information.
17) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-21131)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient policy enforcement in File System API in Google Chrome. A remote attacker can trick the victim to visit a specially crafted website, bypass implemented security measures and gain access to sensitive information.
18) Information disclosure (CVE-ID: CVE-2022-0005)
The vulnerability allows an attacker to gain access to potentially sensitive information.
The vulnerability exists due to sensitive information becomes accessible by physical probing of JTAG interface in the Intel Software Guard Extensions (SGX) Platform. An attacker with physical access to the affected device can gain access to sensitive data.
19) Security features bypass (CVE-ID: CVE-2022-0004)
The vulnerability allows an attacker to bypass implemented security restrictions.
The vulnerability exists due to hardware debug modes and processor INIT setting allow to override of locks for some Intel Processors in Intel Boot Guard and Intel Trusted Execution Technology. An unauthenticated attacker with physical access to the system can bypass implemented security restrictions and escalate privileges on the system.
The vulnerability can be also exploited remotely by an authenticated attacker on the local network.
20) Improper access control (CVE-ID: CVE-2021-33117)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to improper access restrictions. A local user can bypass implemented security restrictions and gain access to sensitive information.
Remediation
Install update from vendor's website.