Out-of-bounds Read Affecting virt:rhel/sgabios package, versions <1:0.20170427git-3.module+el8.1.0+4066+0f1aadab


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.07% (32nd percentile)

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  • Snyk IDSNYK-RHEL8-VIRT-4399924
  • published26 Jul 2021
  • disclosed24 Aug 2020

Introduced: 24 Aug 2020

CVE-2020-14364  (opens in a new tab)
CWE-125  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade RHEL:8 virt:rhel/sgabios to version 1:0.20170427git-3.module+el8.1.0+4066+0f1aadab or higher.
This issue was patched in RHSA-2020:4049.

NVD Description

Note: Versions mentioned in the description apply only to the upstream virt:rhel/sgabios package and not the virt:rhel/sgabios package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before 5.2.0. This issue occurs while processing USB packets from a guest when USBDevice 'setup_len' exceeds its 'data_buf[4096]' in the do_token_in, do_token_out routines. This flaw allows a guest user to crash the QEMU process, resulting in a denial of service, or the potential execution of arbitrary code with the privileges of the QEMU process on the host.

CVSS Scores

version 3.1