Inria OCaml up to 3.12.1 input validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Inria OCaml up to 3.12.1. This affects an unknown function. This manipulation causes input validation. This vulnerability is registered as CVE-2012-0839. No exploit is available.

Detailsinfo

A vulnerability was found in Inria OCaml up to 3.12.1. It has been declared as problematic. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

OCaml 3.12.1 and earlier computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.

The weakness was published 02/08/2012 as confirmed advisory (CERT.org). The advisory is shared at ocert.org. This vulnerability is known as CVE-2012-0839 since 01/19/2012. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 217604 (Linux Distros Unpatched Vulnerability : CVE-2012-0839), which helps to determine the existence of the flaw in a target environment.

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 databases at Tenable (217604) and Secunia (SA47853†). Similar entry is available at VDB-60147. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Inria

Name

• OCaml

Version

• 1.07
• 2.02
• 2.04
• 2.99
• 3.00
• 3.01
• 3.02
• 3.03
• 3.04
• 3.05
• 3.06
• 3.07
• 3.08
• 3.09
• 3.10
• 3.11
• 3.12
• 3.12.1

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

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

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 217604
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2012-0839

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/19/2012 🔍
02/07/2012 +19 days 🔍
02/08/2012 +1 days 🔍
02/08/2012 +0 days 🔍
03/23/2015 +1139 days 🔍
03/04/2025 +3634 days 🔍

Sourcesinfo

Advisory: ocert.org
Status: Confirmed

CVE: CVE-2012-0839 (🔍)
GCVE (CVE): GCVE-0-2012-0839
GCVE (VulDB): GCVE-100-60145
Secunia: 47853 - OCaml Hash Collision Denial of Service Vulnerability, Less Critical

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 03/04/2025 08:09
Changes: 03/23/2015 16:50 (48), 02/14/2019 13:21 (3), 03/04/2025 08:09 (18)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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