SB2021053119 - Multiple vulnerabilities in QEMU

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Main Vulnerability Database SB2021053119

SB2021053119 - Multiple vulnerabilities in QEMU

Published: May 31, 2021

Security Bulletin ID SB2021053119
Severity
Medium
Patch available
NO
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 67% Low 33%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Memory leak (CVE-ID: CVE-2021-3544)

The vulnerability allows a remote user to perform DoS attack on the target system.

The vulnerability exists due to multiple memory leaks in the vhost-user-gpu/vhost-user-gpu.c. A remote authenticated user of the guest operating system can force the application to leak memory and perform denial of service attack.


2) Information disclosure (CVE-ID: CVE-2021-3545)

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

The vulnerability exists due to uninitialized memory disclosure within the virgl_cmd_get_capset_info() function in vhost-user-gpu/virgl.c. A remote authenticated user of the guest operating system can gain unauthorized access to sensitive information on the system.


3) Out-of-bounds write (CVE-ID: CVE-2021-3546)

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

The vulnerability exists due to a boundary error when processing untrusted input within the virgl_cmd_get_capset() function in vhost-user-gpu/virgl.c. A remote authenticated user of the guest operating system can trigger an out-of-bounds write and escalate privileges.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References