Ruby 1.9/1.9.1/1.9.2/1.9.3/2.0 cryptographic issue

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Ruby 1.9/1.9.1/1.9.2/1.9.3/2.0. The affected element is an unknown function. Such manipulation leads to cryptographic issue. This vulnerability is referenced as CVE-2012-5371. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Ruby 1.9/1.9.1/1.9.2/1.9.3/2.0 (Programming Language Software). It has been rated as problematic. Affected by this issue is an unknown part. The manipulation with an unknown input leads to a cryptographic issue vulnerability. Using CWE to declare the problem leads to CWE-310. Impacted is availability. CVE summarizes:

Ruby (aka CRuby) 1.9 before 1.9.3-p327 and 2.0 before r37575 computes hash values without properly 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, as demonstrated by a universal multicollision attack against a variant of the MurmurHash2 algorithm, a different vulnerability than CVE-2011-4815.

The weakness was published 11/28/2012 by Jean-Philippe Aumasson as Bug 875236 as confirmed bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is handled as CVE-2012-5371 since 10/10/2012. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1600.

The vulnerability scanner Nessus provides a plugin with the ID 62955 (Fedora 17 : ruby-1.9.3.327-19.fc17 (2012-18017)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165861 (SUSE Security Update for ruby (openSUSE-SU-2013:0376-1)).

Upgrading to version 1.9.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (79993), Tenable (62955), SecurityFocus (BID 56484†), OSVDB (87280†) and Secunia (SA51253†). Similar entries are available at VDB-63666, VDB-64024 and VDB-64023. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 62955
Nessus Name: Fedora 17 : ruby-1.9.3.327-19.fc17 (2012-18017)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 72605
OpenVAS Name: FreeBSD Ports: ruby
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Ruby 1.9.3

Timelineinfo

10/10/2012 🔍
11/10/2012 +31 days 🔍
11/10/2012 +0 days 🔍
11/12/2012 +2 days 🔍
11/19/2012 +7 days 🔍
11/20/2012 +1 days 🔍
11/28/2012 +8 days 🔍
11/28/2012 +0 days 🔍
03/24/2015 +846 days 🔍
12/20/2021 +2463 days 🔍

Sourcesinfo

Advisory: Bug 875236
Researcher: Jean-Philippe Aumasson
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-5371 (🔍)
GCVE (CVE): GCVE-0-2012-5371
GCVE (VulDB): GCVE-100-63080

OVAL: 🔍

X-Force: 79993
SecurityFocus: 56484 - Ruby CVE-2012-5371 Hash Collision Denial of Service Vulnerability
Secunia: 51253
OSVDB: 87280
SecurityTracker: 1027747 - Ruby Hash Table Collision Bug Lets Remote Users Deny Service
Vulnerability Center: 37341 - Ruby Before 1.9.3-p327 Remote DoS Vulnerability via a Crafted HTTP POST Request, Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/20/2021 14:43
Changes: 03/24/2015 12:22 (72), 04/21/2017 13:24 (11), 12/20/2021 14:43 (3)
Complete: 🔍
Cache ID: 216:394:103

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