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…

Published 8 y ago 2018-09-28 · modified 4 mo ago 2026-06-17 · JSON

CVSS

5.5

v3.0 · NVD

CISA KEV

not known exploited

EPSS

0.4%

percentile 31%

Public exploits

none known

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.

Exploit prediction (EPSS)

0.37% probability of exploitation in the next 30 days, higher than 31% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
NVD	3.0	5.5	`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`
NVD	2.0	2.1	`AV:L/AC:L/Au:N/C:P/I:N/A:N`

Affected products

FreeBSD FreeBSD

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

security.freebsd.org /advisories/FreeBSD-EN-18:12.mem.asc · x_refsource_CONFIRM, x_transferred

Sources

CVE List: CVE-2018-17155
NVD: CVE-2018-17155

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