CVE-2018-17155
2.1 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:N/A:N
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.3 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
5.1%
In FreeBSD before 11.2-STABLE(r338983), 11.2-RELEASE-p4, 11.1-RELEASE-p15, 10.4-STABLE(r338984), and 10.4-RELEASE-p13, due to insufficient initialization of memory copied to userland in the getcontext and swapcontext system calls, small amounts of kernel memory may be disclosed to userland processes. Unprivileged authenticated local users may be able to access small amounts privileged kernel data.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| freebsd:freebsd | freebsd | lt | 11.2 |
| freebsd:freebsd | freebsd | eq | 10.4 |
| freebsd:freebsd | freebsd | eq | 11.1 |
CNA Affected
[
{
"product": "FreeBSD",
"vendor": "FreeBSD",
"versions": [
{
"status": "affected",
"version": "11.2 before 11.2-RELEASE-p4"
},
{
"status": "affected",
"version": "11.1 before 11.1-RELEASE-p15"
},
{
"status": "affected",
"version": "10.x before 10.4-RELEASE-p13"
}
]
}
]Related
2.1 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:N/A:N
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.3 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
5.1%