Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2021-3472

Integer Underflow (Wrap or Wraparound)

Published: Apr 26, 2021 | Modified: Nov 21, 2024
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.2 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
7.8 IMPORTANT
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-3472
CWEhttps://cwe.mitre.org/data/definitions/191.html

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.

Weakness

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

Affected Software

NameVendorStart VersionEnd Version
X_serverX.org*1.20.11 (excluding)
Red Hat Enterprise Linux 7RedHatxorg-x11-server-0:1.20.4-16.el7_9*
XorgUbuntutrusty*
Xorg-serverUbuntubionic*
Xorg-serverUbuntudevel*
Xorg-serverUbuntuesm-infra-legacy/trusty*
Xorg-serverUbuntuesm-infra/bionic*
Xorg-serverUbuntuesm-infra/focal*
Xorg-serverUbuntuesm-infra/xenial*
Xorg-serverUbuntufocal*
Xorg-serverUbuntugroovy*
Xorg-serverUbuntuhirsute*
Xorg-serverUbuntuimpish*
Xorg-serverUbuntujammy*
Xorg-serverUbuntutrusty*
Xorg-serverUbuntutrusty/esm*
Xorg-serverUbuntuxenial*
Xorg-server-hwe-16.04Ubuntuesm-infra/xenial*
Xorg-server-hwe-16.04Ubuntuxenial*
Xorg-server-hwe-18.04Ubuntubionic*
Xorg-server-hwe-18.04Ubuntuesm-infra/bionic*
Xorg-server-lts-utopicUbuntutrusty*
Xorg-server-lts-vividUbuntutrusty*
Xorg-server-lts-wilyUbuntutrusty*
Xorg-server-lts-xenialUbuntutrusty*
XwaylandUbuntudevel*
XwaylandUbuntuhirsute*
XwaylandUbuntuimpish*
XwaylandUbuntujammy*

References

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