CVE-2020-14346

2020-08-2600:00:00

ubuntu.com

cve-2020-14346

integer underflow

x input extension

data confidentiality

integrity

system availability

memory access

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

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

EPSS

0.001

Percentile

30.8%

JSON

A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in
the X input extension protocol decoding in the X server may lead to
arbitrary access of memory contents. 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

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchxorg-server< 2:1.19.6-1ubuntu4.5UNKNOWN
ubuntu20.04noarchxorg-server< 2:1.20.8-2ubuntu2.3UNKNOWN
ubuntu14.04noarchxorg-server< 2:1.15.1-0ubuntu2.11+esm2UNKNOWN
ubuntu16.04noarchxorg-server< 2:1.18.4-0ubuntu0.9UNKNOWN
ubuntu16.04noarchxorg-server-hwe-16.04< 2:1.19.6-1ubuntu4.1~16.04.3UNKNOWN
ubuntu18.04noarchxorg-server-hwe-18.04< 2:1.20.8-2ubuntu2.2~18.04.2UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	xorg-server	< 2:1.19.6-1ubuntu4.5	UNKNOWN
ubuntu	20.04	noarch	xorg-server	< 2:1.20.8-2ubuntu2.3	UNKNOWN
ubuntu	14.04	noarch	xorg-server	< 2:1.15.1-0ubuntu2.11+esm2	UNKNOWN
ubuntu	16.04	noarch	xorg-server	< 2:1.18.4-0ubuntu0.9	UNKNOWN
ubuntu	16.04	noarch	xorg-server-hwe-16.04	< 2:1.19.6-1ubuntu4.1~16.04.3	UNKNOWN
ubuntu	18.04	noarch	xorg-server-hwe-18.04	< 2:1.20.8-2ubuntu2.2~18.04.2	UNKNOWN