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Out-of-bounds Read Affecting qemu package, versions <1:4.2-1

0.0
medium

Snyk CVSS

    Attack Complexity Low
    Scope Changed
    Availability High

    Threat Intelligence

    EPSS 0.04% (12th percentile)
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NVD
6.5 medium
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Red Hat
2.8 low

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  • Snyk ID SNYK-DEBIANUNSTABLE-QEMU-570615
  • published 29 May 2020
  • disclosed 31 Dec 2020
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Introduced: 29 May 2020

CVE-2019-20808 Open this link in a new tab
CWE-125 Open this link in a new tab

How to fix?

Upgrade Debian:unstable qemu to version 1:4.2-1 or higher.

NVD Description

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

In QEMU 4.1.0, an out-of-bounds read flaw was found in the ATI VGA implementation. It occurs in the ati_cursor_define() routine while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.