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ubuntuUbuntuUSN-4488-1
HistorySep 02, 2020 - 12:00 a.m.

X.Org X Server vulnerabilities

2020-09-0200:00:00
ubuntu.com
43

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

7.1 High

AI Score

Confidence

High

4.6 Medium

CVSS2

Access Vector

LOCAL

Access 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

0.001 Low

EPSS

Percentile

20.3%

JSON

Releases

  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM

Packages

  • xorg-server - X.Org X11 server
  • xorg-server-hwe-16.04 - X.Org X11 server
  • xorg-server-hwe-18.04 - X.Org X11 server

Details

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the
input extension protocol. A local attacker could possibly use this issue to
escalate privileges. (CVE-2020-14346)

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly initialized
memory. A local attacker could possibly use this issue to obtain sensitive
information. (CVE-2020-14347)

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the
XkbSelectEvents function. A local attacker could possibly use this issue to
escalate privileges. (CVE-2020-14361)

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the
XRecordRegisterClients function. A local attacker could possibly use this
issue to escalate privileges. (CVE-2020-14362)

OSVersionArchitecturePackageVersionFilename
Ubuntu20.04noarchxserver-xorg-core< 2:1.20.8-2ubuntu2.3UNKNOWN
Ubuntu20.04noarchxdmx< 2:1.20.8-2ubuntu2.3UNKNOWN
Ubuntu20.04noarchxdmx-dbgsym< 2:1.20.8-2ubuntu2.3UNKNOWN
Ubuntu20.04noarchxdmx-tools< 2:1.20.8-2ubuntu2.3UNKNOWN
Ubuntu20.04noarchxdmx-tools-dbgsym< 2:1.20.8-2ubuntu2.3UNKNOWN
Ubuntu20.04noarchxnest< 2:1.20.8-2ubuntu2.3UNKNOWN
Ubuntu20.04noarchxnest-dbgsym< 2:1.20.8-2ubuntu2.3UNKNOWN
Ubuntu20.04noarchxorg-server-source< 2:1.20.8-2ubuntu2.3UNKNOWN
Ubuntu20.04noarchxserver-common< 2:1.20.8-2ubuntu2.3UNKNOWN
Ubuntu20.04noarchxserver-xephyr< 2:1.20.8-2ubuntu2.3UNKNOWN
Rows per page:
1-10 of 901

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redhat
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(RHSA-2020:4953) Important: xorg-x11-server security update
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prion
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Heap overflow
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Integer overflow
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cve
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2020-09-15 19:15:00
CVE-2020-14361
2020-09-15 19:15:00
CVE-2020-14347
2020-08-05 14:15:00
zdi
zdi
X.Org Server XkbSelectEvents Integer Underflow Privilege Escalation Vulnerability
2020-12-09 00:00:00
X.Org Server XRecordRegisterClients Integer Underflow Privilege Escalation Vulnerability
2020-12-09 00:00:00
X.Org Server XIChangeHierarchy Integer Underflow Privilege Escalation Vulnerability
2020-12-09 00:00:00
veracode
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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

7.1 High

AI Score

Confidence

High

4.6 Medium

CVSS2

Access Vector

LOCAL

Access 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

0.001 Low

EPSS

Percentile

20.3%

JSON
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