CVE-2017-1088

low-risk
Published 2017-11-16

In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p4, 11.0-RELEASE-p15, 10.4-STABLE, 10.4-RELEASE-p3, and 10.3-RELEASE-p24, the kernel does not properly clear the memory of the kld_file_stat structure before filling the data. Since the structure filled by the kernel is allocated on the kernel stack and copied to userspace, a leak of information from the kernel stack is possible. As a result, some bytes from the kernel stack can be observed in userspace.

Do I need to act?

-
0.07% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.3/10 Low
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Freebsd

References (6)

Third Party Advisory http://www.securityfocus.com/bid/101857
Third Party Advisory http://www.securitytracker.com/id/1039811
Vendor Advisory https://www.freebsd.org/security/advisories/FreeBSD-SA-17:10.kldstat.asc
Third Party Advisory http://www.securityfocus.com/bid/101857
Third Party Advisory http://www.securitytracker.com/id/1039811
Vendor Advisory https://www.freebsd.org/security/advisories/FreeBSD-SA-17:10.kldstat.asc
18
/ 100
low-risk
Severity 13/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal