VDB-69963 · CVE-2013-0250 · SA52037

Corosync up to 2.2.0 init_nss_hash initialization

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.
5.1	$0-$5k	0.00

A vulnerability was found in Corosync up to 2.2.0. It has been classified as problematic. This affects the function init_nss_hash. The manipulation with an unknown input leads to a initialization vulnerability. CWE is classifying the issue as CWE-665. The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. This is going to have an impact on availability. The summary by CVE is:

The init_nss_hash function in exec/totemcrypto.c in Corosync 2.0 before 2.3 does not properly initialize the HMAC key, which allows remote attackers to cause a denial of service (crash) via a crafted packet.

The weakness was presented 06/06/2014 (Website). It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2013-0250 since 12/06/2012. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2.0.1 eliminates this vulnerability.

Productinfo

Name

Corosync

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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

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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: Initialization
CWE: CWE-665
CAPEC: 🔍
ATT&CK: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Corosync 2.0.1
Patch: github.com

Timelineinfo

12/06/2012 🔍
02/04/2013 +60 days 🔍
06/06/2014 +487 days 🔍
06/06/2014 +0 days 🔍
03/26/2015 +293 days 🔍
03/22/2022 +2553 days 🔍

Sourcesinfo

Advisory: b3f456a8ceefac6e9f2e9acc2ea0c159d412b595
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-0250 (🔍)
Secunia: 52037 - Corosync HMAC Initialization Denial of Service Vulnerability, Moderately Critical

Entryinfo

Created: 03/26/2015 12:07
Updated: 03/22/2022 12:40
Changes: 03/26/2015 12:07 (50), 03/10/2019 15:36 (2), 03/22/2022 12:40 (4)
Complete: 🔍