VDB-94487 · CVE-2016-9034 · BID 94930

Joyent SmartOS 20161110T013148Z Hyprlofs nm memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Joyent SmartOS 20161110T013148Z. This affects an unknown function of the component Hyprlofs. The manipulation of the argument nm leads to memory corruption. This vulnerability is uniquely identified as CVE-2016-9034. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in Joyent SmartOS 20161110T013148Z (Operating System) and classified as critical. This issue affects an unknown functionality of the component Hyprlofs. The manipulation of the argument nm with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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 32-bit file systems. An attacker can craft an input that can cause a buffer overflow in the nm variable leading to an out of bounds memory access and could result in potential privilege escalation. This vulnerability is distinct from CVE-2016-9032.

The bug was discovered 12/12/2016. The weakness was disclosed 12/14/2016 by Tyler Bohan with Cisco Talos (Website). It is possible to read the advisory at securityfocus.com. The identification of this vulnerability is CVE-2016-9034 since 10/26/2016. The exploitation is known to be easy. Attacking locally is a requirement. The successful exploitation needs a simple authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 94930†). The entries VDB-94488, VDB-94486, VDB-94485 and VDB-94484 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
NVD Vector: 🔍

CNA Base Score: 7.0
CNA Vector (Talos): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/26/2016 🔍
12/12/2016 +47 days 🔍
12/12/2016 +0 days 🔍
12/14/2016 +2 days 🔍
12/14/2016 +0 days 🔍
12/15/2016 +1 days 🔍
10/08/2022 +2123 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Tyler Bohan
Organization: Cisco Talos
Status: Not defined

CVE: CVE-2016-9034 (🔍)
GCVE (CVE): GCVE-0-2016-9034
GCVE (VulDB): GCVE-100-94487
SecurityFocus: 94930 - Joyent SmartOS CVE-2016-9034 Local Stack Buffer Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 12/15/2016 10:31
Updated: 10/08/2022 15:43
Changes: 12/15/2016 10:31 (60), 07/07/2019 20:54 (6), 10/08/2022 15:43 (13)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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