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Vulnerability record · CVE-2016-8733 · published 14 December 2016

CVE-2016-8733: Joyent smartos integer overflow vulnerability

JJoyent · Smartos

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 native 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-2016-9031.

8.8 CVSS 3.1 High EPSS 0.55% · top 55.7% CWE-190 · Integer overflow
8.8CVSS 3.1 base score, v2 7.2
0.55%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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 native 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-2016-9031.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/94920 Broken LinkThird Party AdvisoryVDB Entry
http://www.talosintelligence.com/reports/TALOS-2016-0248/ ExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/94920 Broken LinkThird Party AdvisoryVDB Entry
http://www.talosintelligence.com/reports/TALOS-2016-0248/ ExploitThird Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-27678Illumos classic buffer overflow vulnerabilityAn issue was discovered in illumos before 2020-10-22, as used in OmniOS before r151030by, r151032ay, and r151034y and SmartOS before 20201022. There …EPSS 1.4%7.8CVE-2018-1166Joyent smartos use after free vulnerabilityThis vulnerability allows local attackers to escalate privileges on vulnerable installations of Joyent SmartOS release-20170803-20170803T064301Z. An …EPSS 0.38%7.8CVE-2016-9031Joyent smartos integer overflow vulnerabilityAn exploitable integer overflow exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. The vulnerability is present in the Ioctl system …EPSS 0.49%7.2CVE-2012-0217Freebsd memory buffer overflow vulnerabilityThe x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix XenServer 6.0.2 and earlier and other products; Oracle Solari…EPSS 40%7.0CVE-2018-1171Joyent smartos out-of-bounds write vulnerabilityThis vulnerability allows local attackers to escalate privileges on vulnerable installations of Joyent SmartOS release-20170803-20170803T064301Z. An …EPSS 0.44%7.0CVE-2018-1165Joyent smartos heap-based buffer overflow vulnerabilityThis vulnerability allows local attackers to escalate privileges on vulnerable installations of Joyent SmartOS release-20170803-20170803T064301Z. An …EPSS 0.50%7.0CVE-2016-9035Joyent smartos classic buffer overflow vulnerabilityAn exploitable buffer overflow exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. The vulnerability is present in the Ioctl system c…EPSS 0.54%7.0CVE-2016-9034Joyent smartos classic buffer overflow vulnerabilityAn exploitable buffer overflow exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. The vulnerability is present in the Ioctl system c…EPSS 0.53%

Source: NIST National Vulnerability Database (record CVE-2016-8733), CISA KEV, FIRST EPSS (scores of 2026-10-04). This page is refreshed as NVD updates the record.