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ubuntucveUbuntu.comUB:CVE-2021-4010
HistoryDec 14, 2021 - 12:00 a.m.

CVE-2021-4010

2021-12-1400:00:00
ubuntu.com
ubuntu.com
8

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.0005 Low

EPSS

Percentile

16.6%

JSON

A flaw was found in xorg-x11-server in versions before 21.1.2 and before
1.20.14. An out-of-bounds access can occur in the SProcScreenSaverSuspend
function. The highest threat from this vulnerability is to data
confidentiality and integrity as well as system availability.

Notes

Author Note
mdeslaur xorg server is actually the xorg-server package the xorg package only contains docs xwayland package contains parts of xorg-server This is ZDI-CAN-14951 looks like this was introduced by: https://gitlab.freedesktop.org/xorg/xserver/-/commit/52048ce29f872192478fece3887b7bc1c8aace7d
OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchxorg-server< 2:1.20.13-1ubuntu1~20.04.2UNKNOWN
ubuntu21.04noarchxorg-server< 2:1.20.11-1ubuntu1.2UNKNOWN
ubuntu21.10noarchxorg-server< 2:1.20.13-1ubuntu1.1UNKNOWN
ubuntu22.04noarchxorg-server< 2:1.20.13-1ubuntu2UNKNOWN
ubuntu22.10noarchxorg-server< 2:1.20.13-1ubuntu2UNKNOWN
ubuntu23.04noarchxorg-server< 2:1.20.13-1ubuntu2UNKNOWN
ubuntu18.04noarchxorg-server-hwe-18.04< 2:1.20.8-2ubuntu2.2~18.04.6UNKNOWN
ubuntu21.04noarchxwayland< 2:21.1.1-0ubuntu1.1UNKNOWN
ubuntu21.10noarchxwayland< 2:21.1.2-0ubuntu1.1UNKNOWN
ubuntu22.04noarchxwayland< 2:21.1.3-1ubuntu1UNKNOWN
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7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.0005 Low

EPSS

Percentile

16.6%

JSON
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