5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.002 Low
EPSS
Percentile
56.5%
Problem Description:
Insufficient validation of user-provided font parameters
can result in an integer overflow, leading to the use of
arbitrary kernel memory as glyph data. Characters that
reference this data can be displayed on the screen, effectively
disclosing kernel memory.
Impact:
Unprivileged users may be able to access privileged
kernel data.
Such memory might contain sensitive information, such
as portions of the file cache or terminal buffers. This
information might be directly useful, or it might be leveraged
to obtain elevated privileges in some way; for example, a
terminal buffer might include a user-entered password.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
FreeBSD | any | noarch | freebsd-kernel | = 11.1 | UNKNOWN |
FreeBSD | any | noarch | freebsd-kernel | < 11.1_9 | UNKNOWN |
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.002 Low
EPSS
Percentile
56.5%