Release of Invalid Pointer or Reference Affecting virt:rhel/qemu-kvm-docs package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.18% (56th percentile)

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  • Snyk IDSNYK-RHEL8-VIRT-4437386
  • published11 Aug 2021
  • disclosed19 Jul 2021

Introduced: 19 Jul 2021

CVE-2021-3682  (opens in a new tab)
CWE-763  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 virt:rhel/qemu-kvm-docs.

NVD Description

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

A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata, resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the host.

CVSS Scores

version 3.1