SB2023041751 - VMware Tanzu Operations Manager update for QEMU

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Main Vulnerability Database SB2023041751

SB2023041751 - VMware Tanzu Operations Manager update for QEMU

Published: April 17, 2023

Security Bulletin ID SB2023041751
CSH Severity
High
Patch available
YES
Number of vulnerabilities 6
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 17% Medium 50% Low 33%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 6 vulnerabilities.


1) Release of invalid pointer or reference (CVE-ID: CVE-2021-3682)

CWE-ID: CWE-763 - Release of invalid pointer or reference

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


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

The vulnerability exists in the USB redirector device emulation of QEMU when dropping packets during a bulk transfer from a SPICE client. A remote user can make QEMU call free() with faked heap chunk metadata to perform a denial of service or escalate privileges on the system.


2) Use-after-free (CVE-ID: CVE-2021-3750)

CWE-ID: CWE-416 - Use After Free

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


The vulnerability allows a remote user to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in the USB EHCI controller emulation of QEMU. A remote guest can trigger a use-after-free error and execute arbitrary code on the host OS.



3) Off-by-one (CVE-ID: CVE-2021-3930)

CWE-ID: CWE-193 - Off-by-one Error

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to an off-by-one error in the SCSI device emulation in QEMU. A remote user on the guest OS can can trigger an off-by-one error while processing MODE SELECT commands in mode_sense_page() if the 'page' argument is set to MODE_PAGE_ALLS (0x3f). Successful exploitation of the vulnerability may result in QEMU crash.


4) Use-after-free (CVE-ID: CVE-2022-0216)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error in the LSI53C895A SCSI Host Bus Adapter emulation of QEMU when processing repeated messages to cancel the current SCSI request via the lsi_do_msgout() function. A remote user on the guest OS can trigger a use-after-free error and perform a denial of service attack against the QEMU host.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


5) Out-of-bounds write (CVE-ID: CVE-2022-2962)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


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

The vulnerability exists due to a boundary error in the Tulip device emulation in QEMU. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges on the host OS.


6) Integer underflow (CVE-ID: CVE-2022-3165)

CWE-ID: CWE-191 - Integer underflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to integer underflow in the QEMU VNC server while processing ClientCutText messages in the extended format. A remote client can send a specially crafted payload message to the VNC server and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References