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Off-by-one Error Affecting qemu-guest-agent package, versions *

0.0
low

Snyk CVSS

    Attack Complexity Low
    Privileges Required High
    Scope Changed

    Threat Intelligence

    EPSS 0.05% (14th percentile)
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NVD
6.5 medium
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SUSE
3.2 low
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Red Hat
3.2 low

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  • Snyk ID SNYK-CENTOS7-QEMUGUESTAGENT-2027061
  • published 6 Nov 2021
  • disclosed 4 Feb 2021
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Introduced: 4 Feb 2021

CVE-2021-3930 Open this link in a new tab
CWE-193 Open this link in a new tab

How to fix?

There is no fixed version for Centos:7 qemu-guest-agent.

NVD Description

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

An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE SELECT commands in mode_sense_page() if the 'page' argument was set to MODE_PAGE_ALLS (0x3f). A malicious guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.