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veracodeVeracode Vulnerability DatabaseVERACODE:45102
HistoryJan 21, 2024 - 11:28 a.m.

Improper Neutralization Of Null Byte Or NUL Character

2024-01-2111:28:09
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
10
x.org
vulnerability
glx pbuffer
creation
denial of service

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.4

Confidence

High

EPSS

0

Percentile

5.1%

X.Org server is vulnerable to Improper Neutralization Of Null Byte Or NUL Character. The vulnerability is caused due to GLX PBuffer code does not call the XACE hook when creating the buffer, leaving it unlabeled. When the client tries to access the buffer , the XSELINUX code will try to use an object that was never labeled and crash because the SID is NULL leading to Denial Of Service (DOS).

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.4

Confidence

High

EPSS

0

Percentile

5.1%