Integer overflow in Joyent Smartos
CVE-2016-9031
An exploitable integer overflow exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. The vulnerability is present in the Ioctl system call with the command HYPRLOFS_ADD_ENTRIES when dealing with 32-bit file systems. An attacker can craft an input that can cause a kernel panic and potentially be leveraged into a full privilege escalation vulnerability. This vulnerability is distinct from CVE-2016-8733.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (41.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Joyent Smartos — versions OS 20161110T013148Z, 20161110t013148z
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/94921 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- www.talosintelligence.com/reports/TALOS-2016-0249/ (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-9031?
- CVE-2016-9031 is a high-severity vulnerability in Joyent Smartos, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2016-12-14.
- How severe is CVE-2016-9031?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2016-9031 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.