Oracle MySQL Server up to 5.5.42/5.6.23 Optimizer denial of service

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.
4.1$0-$5k0.00

Summaryinfo

A vulnerability classified as very critical was found in Oracle MySQL Server up to 5.5.42/5.6.23. This affects an unknown part of the component Optimizer. Executing a manipulation can lead to denial of service. This vulnerability is handled as CVE-2015-2571. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Oracle MySQL Server up to 5.5.42/5.6.23 (Database Software) and classified as critical. This vulnerability affects an unknown function of the component Optimizer. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

Unspecified vulnerability in Oracle MySQL Server 5.5.42 and earlier, and 5.6.23 and earlier, allows remote authenticated users to affect availability via unknown vectors related to Server : Optimizer.

The weakness was released 04/14/2015 with Oracle as Oracle Critical Patch Update Advisory - April 2015 as confirmed advisory (Website). The advisory is shared for download at oracle.com. This vulnerability was named CVE-2015-2571 since 03/20/2015. The exploitation appears to be easy. The attack can be initiated remotely. The successful exploitation requires a single authentication. There are neither technical details nor an exploit publicly available.

As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 82865 (Debian DSA-3229-1 : mysql-5.5 - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175452 (Debian Security Update for mariadb-10.0 (DSA 3311-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (82865), SecurityFocus (BID 74095†) and Vulnerability Center (SBV-58288†). Additional details are provided at krebsonsecurity.com. Entries connected to this vulnerability are available at VDB-74910, VDB-74899, VDB-74900 and VDB-74901. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 82865
Nessus Name: Debian DSA-3229-1 : mysql-5.5 - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 80056
OpenVAS Name: Oracle Linux Local Check: ELSA-2015-1665
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

03/20/2015 🔍
04/14/2015 +25 days 🔍
04/14/2015 +0 days 🔍
04/14/2015 +0 days 🔍
04/15/2015 +1 days 🔍
04/16/2015 +1 days 🔍
04/20/2015 +4 days 🔍
05/06/2015 +16 days 🔍
04/18/2016 +348 days 🔍
05/07/2022 +2210 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - April 2015
Organization: Oracle
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-2571 (🔍)
GCVE (CVE): GCVE-0-2015-2571
GCVE (VulDB): GCVE-100-74956

OVAL: 🔍

SecurityFocus: 74095 - Oracle MySQL Server CVE-2015-2571 Remote Security Vulnerability
SecurityTracker: 1032121
Vulnerability Center: 58288 - [cpuapr2015-2365600] Oracle MySQL Remote DoS in Optimizer, Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 04/15/2015 14:26
Updated: 05/07/2022 02:21
Changes: 04/15/2015 14:26 (71), 02/05/2019 14:34 (8), 05/07/2022 02:21 (3)
Complete: 🔍
Cache ID: 216:C18:103

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!