Information disclosure in FreeBSD
CVE-2017-1088
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (30.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- FreeBSD — versions All supported versions of FreeBSD
Weakness classification (CWE)
References
- www.securityfocus.com/bid/101857 (VDB Entry, Third Party Advisory, vdb-entry)
- www.freebsd.org/security/advisories/FreeBSD-SA-17:10.kldstat.asc (vendor-advisory, Vendor Advisory)
- www.securitytracker.com/id/1039811 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-1088?
- CVE-2017-1088 is a low-severity vulnerability in FreeBSD, classified under Information Disclosure. CVSS score: 3.3/10. Published 2017-11-16.
- How severe is CVE-2017-1088?
- Low severity. CVSS v3 base score is 3.3 out of 10.