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Integer Underflow Affecting xorg-server package, versions <2:1.19.2-1+deb9u8

0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.04% (10th percentile)
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NVD
7.8 high
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Red Hat
7.8 high
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SUSE
7.8 high

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  • Snyk ID SNYK-DEBIAN9-XORGSERVER-1245415
  • published 14 Apr 2021
  • disclosed 26 Apr 2021
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Introduced: 14 Apr 2021

CVE-2021-3472 Open this link in a new tab
CWE-191 Open this link in a new tab

How to fix?

Upgrade Debian:9 xorg-server to version 2:1.19.2-1+deb9u8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-server package and not the xorg-server package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

A flaw was found in xorg-x11-server in versions before 1.20.11. An integer underflow can occur in xserver which can lead to a local privilege escalation. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

References