Out-of-bounds Read Affecting qemu-img package, versions <10:1.5.3-156.el7_5.1


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-RHEL7-QEMUIMG-4785298
  • published26 Jul 2021
  • disclosed8 Mar 2018

Introduced: 8 Mar 2018

CVE-2018-7858  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade RHEL:7 qemu-img to version 10:1.5.3-156.el7_5.1 or higher.
This issue was patched in RHSA-2018:1416.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-img package and not the qemu-img package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

Quick Emulator (aka QEMU), when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a denial of service (out-of-bounds access and QEMU process crash) by leveraging incorrect region calculation when updating VGA display.

CVSS Scores

version 3.1