SB2022021820 - SUSE update for qemu 

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Main Vulnerability Database SB2022021820

SB2022021820 - SUSE update for qemu

Published: February 18, 2022

Security Bulletin ID SB2022021820
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Out-of-bounds read (CVE-ID: CVE-2020-13253)

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

The vulnerability exists due to a boundary condition in the SD Memory Card emulator while performing block write commands via sdhci_write() in QEMU. A remote user of guest operating system can trigger out-of-bounds read error and crash the QEMU process. 


2) NULL pointer dereference (CVE-ID: CVE-2021-20196)

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

The vulnerability exists due to a NULL pointer dereference error in the floppy disk emulator of QEMU. A privileged guest can trigger a NULL pointer dereference error and cause a denial of service. 


Remediation

Install update from vendor's website.

References