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Out-of-bounds Read Affecting xen package, versions <4.7.1-r5

0.0
critical

Snyk CVSS

    Attack Complexity Low
    Scope Changed
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.15% (51st percentile)
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NVD
9.9 critical
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Red Hat
5.5 medium

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  • Snyk ID SNYK-ALPINE315-XEN-1928830
  • published 21 Jul 2020
  • disclosed 27 Jul 2018
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Introduced: 27 Jul 2018

CVE-2017-2620 Open this link in a new tab
CWE-125 Open this link in a new tab
CWE-787 Open this link in a new tab

How to fix?

Upgrade Alpine:3.15 xen to version 4.7.1-r5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Alpine. See How to fix? for Alpine:3.15 relevant fixed versions and status.

Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.

References