FreeBSD76C8B690-340B-11EB-A2B7-54E1AD3D6335xorg-server -- Multiple input validation failures in X server XKB extension
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
6.1 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:P/I:P/A:C
0.001 Low
EPSS
Percentile
25.3%
The X.org project reports:
These issues can lead to privileges elevations for authorized
clients on systems where the X server is running privileged.
Insufficient checks on the lengths of the XkbSetMap request can
lead to out of bounds memory accesses in the X server.
Insufficient checks on input of the XkbSetDeviceInfo request can
lead to a buffer overflow on the head in the X server.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| FreeBSD | any | noarch | xorg-server | < 1.20.9_1,1 | UNKNOWN |
| FreeBSD | any | noarch | xephyr | < 1.20.9_1,1 | UNKNOWN |
| FreeBSD | any | noarch | xorg-vfbserver | < 1.20.9_1,1 | UNKNOWN |
| FreeBSD | any | noarch | xorg-nestserver | < 1.20.9_1,1 | UNKNOWN |
| FreeBSD | any | noarch | xwayland | < 1.20.9_2,1 | UNKNOWN |
| FreeBSD | any | noarch | xorg-dmx | < 1.20.9_1,1 | UNKNOWN |
Related
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
6.1 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:P/I:P/A:C
0.001 Low
EPSS
Percentile
25.3%