VDB-90117 · CVE-2016-3440 · BID 91787

Oracle MySQL Server up to 5.7.11 Optimizer denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

A vulnerability classified as critical has been found in Oracle MySQL Server up to 5.7.11 (Database Software). This affects some unknown processing of the component Optimizer. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

Unspecified vulnerability in Oracle MySQL 5.7.11 and earlier allows remote authenticated users to affect availability via vectors related to Server: Optimizer.

The weakness was disclosed 07/19/2016 with Oracle as Oracle Critical Patch Update Advisory - July 2016 as confirmed advisory (Website). The advisory is shared at oracle.com. This vulnerability is uniquely identified as CVE-2016-3440 since 03/17/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. Required for exploitation is a authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 90834 (Oracle MySQL 5.7.x < 5.7.12 Multiple Vulnerabilities (RPM Check) (April 2016 CPU) (July 2016 CPU) (October 2017 CPU) (DROWN)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Databases and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 20020 (Oracle MySQL July 2016 Critical Patch Update (CPUJUL2016)).

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

The vulnerability is also documented in the vulnerability database at Tenable (90834). The entries 76354, 78584, 78603 and 78601 are pretty similar.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.7
VulDB Temp Score: 7.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.7
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CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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Exploitinginfo

Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 90834
Nessus Name: Oracle MySQL 5.7.x < 5.7.12 Multiple Vulnerabilities (RPM Check) (April 2016 CPU) (July 2016 CPU) (October 2017 CPU) (DROWN)
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 64255
OpenVAS Name: Oracle MySQL Multiple Unspecified Vulnerabilities-03 May16 (Linux)
OpenVAS File: 🔍
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Timelineinfo

03/17/2016 🔍
05/02/2016 +46 days 🔍
07/15/2016 +74 days 🔍
07/19/2016 +4 days 🔍
07/19/2016 +0 days 🔍
07/20/2016 +1 days 🔍
07/21/2016 +1 days 🔍
09/08/2022 +2240 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - July 2016
Organization: Oracle
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-3440 (🔍)
OVAL: 🔍

SecurityTracker: 1036362
SecurityFocus: 91787 - Oracle July 2016 Critical Patch Update Multiple Vulnerabilities

See also: 🔍

Entryinfo

Created: 07/20/2016 11:30
Updated: 09/08/2022 15:29
Changes: 07/20/2016 11:30 (71), 03/05/2019 21:32 (11), 09/08/2022 15:29 (3)
Complete: 🔍

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