Oracle MySQL Server up to 5.5.53 Charsets 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.
4.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Oracle MySQL Server up to 5.5.53 and classified as critical. Affected by this vulnerability is an unknown functionality of the component Charsets. Executing a manipulation can lead to denial of service. This vulnerability is tracked as CVE-2017-3243. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Oracle MySQL Server up to 5.5.53 (Database Software). It has been declared as critical. This vulnerability affects an unknown code of the component Charsets. 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.

The bug was discovered 01/17/2017. The weakness was disclosed 01/19/2017 with Oracle as Oracle Critical Patch Update Advisory - January 2017 as confirmed advisory (Website). The advisory is available at oracle.com. This vulnerability was named CVE-2017-3243 since 12/06/2016. The exploitation appears to be difficult. The attack can be initiated remotely. Additional levels of successful authentication are required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 96732 (Debian DLA-797-1 : 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 175942 (Debian Security Update for mariadb-10.0 (DSA 3770-1)).

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 (96732) and SecurityFocus (BID 95538†). The entries VDB-95550, VDB-95551, VDB-95552 and VDB-95553 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.4
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Oracle): 4.4
Vendor Vector (Oracle): 🔍

NVD Base Score: 4.4
NVD Vector: 🔍

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: 96732
Nessus Name: Debian DLA-797-1 : mysql-5.5 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703767
OpenVAS Name: Debian Security Advisory DSA 3767-1 (mysql-5.5 - security update)
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

12/06/2016 🔍
01/17/2017 +42 days 🔍
01/17/2017 +0 days 🔍
01/19/2017 +2 days 🔍
01/19/2017 +0 days 🔍
01/19/2017 +0 days 🔍
01/25/2017 +6 days 🔍
01/27/2017 +2 days 🔍
05/15/2026 +3395 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - January 2017
Organization: Oracle
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-3243 (🔍)
GCVE (CVE): GCVE-0-2017-3243
GCVE (VulDB): GCVE-100-95722

OVAL: 🔍

SecurityFocus: 95538 - Oracle MySQL Server CVE-2017-3243 Remote Security Vulnerability
OSVDB: - CVE-2017-3243 - Oracle - MySQL - Unspecified Issue
SecurityTracker: 1037640

See also: 🔍

Entryinfo

Created: 01/19/2017 14:16
Updated: 05/15/2026 10:13
Changes: 01/19/2017 14:16 (87), 07/26/2020 17:44 (7), 11/02/2022 17:12 (4), 05/15/2026 10:13 (15)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!