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Smartos CVE-2016-9035

HIGH
Classic Buffer Overflow (CWE-120)
2016-12-14 talos-cna@cisco.com
7.0
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Buffer copy size validation
MITRE ATT&CK

1 technique across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 7.0 (HIGH). Attack characteristics: local attack vector, high complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.06%.

Exploit ScenarioDerived

A local attacker with access to the system could overflow a buffer to corrupt adjacent memory.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAI

An exploitable buffer overflow exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. Rated high severity (CVSS 7.0). Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. An exploitable buffer 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 buffer overflow in the path variable leading to an out of bounds memory access and could result in potential privilege escalation. This vulnerability is distinct from CVE-2016-9033. Affected products include: Joyent Smartos.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.0 HIGH
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

An exploitable buffer 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 buffer overflow in the path variable leading to an out of bounds memory access and could result in potential privilege escalation. This vulnerability is distinct from CVE-2016-9033.

Threat Intelligence Overview

EPSS Score
0.1%
Top 81% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

55
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +35
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Affected Products (CPE)CVE.org

cpe:2.3:o:joyent:smartos:20161110t013148z:*:*:*:*:*:*:*
CVE-2012-0217 HIGH POC
7.2 Jun 12

The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix XenServer 6.0.2 and earlier and

CVE-2024-12085 HIGH POC
7.5 Jan 14

A flaw was found in rsync which could be triggered when rsync compares file checksums. Rated high severity (CVSS 7.5), t

CVE-2024-12084 CRITICAL POC
9.8 Jan 15

A heap-based buffer overflow flaw was found in the rsync daemon. Rated critical severity (CVSS 9.8), this vulnerability

CVE-2016-8733 HIGH POC
8.8 Dec 14

An exploitable integer overflow exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. Rated high severity

CVE-2024-12087 HIGH POC
7.5 Jan 14

Server-to-client path traversal in rsync lets a malicious or compromised rsync server write files outside the client's i

CVE-2016-9031 HIGH POC
7.8 Dec 14

An exploitable integer overflow exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. Rated high severity

CVE-2016-9034 HIGH POC
7.0 Dec 14

An exploitable buffer overflow exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. Rated high severity (

CVE-2016-9033 HIGH POC
7.0 Dec 14

An exploitable buffer overflow exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. Rated high severity (

CVE-2016-9032 HIGH POC
7.0 Dec 14

An exploitable buffer overflow exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. Rated high severity (

CVE-2024-12086 MEDIUM POC
6.8 Jan 14

A flaw was found in rsync. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authenticati

CVE-2016-9039 MEDIUM POC
6.2 Jan 31

An exploitable denial of service exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. Rated medium severi

CVE-2020-27678 CRITICAL
9.8 Oct 26

An issue was discovered in illumos before 2020-10-22, as used in OmniOS before r151030by, r151032ay, and r151034y and Sm

References

Advisories & patches

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