Oracle MySQL Server up to 8.0.19 Connection Handling denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in Oracle MySQL Server up to 8.0.19 and classified as critical. Affected by this issue is some unknown functionality of the component Connection Handling. This manipulation causes denial of service. This vulnerability appears as CVE-2020-2903. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Oracle MySQL Server up to 8.0.19 (Database Software). It has been declared as critical. Affected by this vulnerability is an unknown part of the component Connection Handling. 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 summary by CVE is:

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Connection Handling). Supported versions that are affected are 8.0.19 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

The weakness was presented 04/15/2020 as Oracle Critical Patch Update Advisory - April 2020 as confirmed advisory (Website). It is possible to read the advisory at oracle.com. This vulnerability is known as CVE-2020-2903. The attack can be launched remotely. Additional levels of successful authentication are necessary for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

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

See VDB-153686, VDB-153290, VDB-153291 and VDB-153293 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.9

VulDB Base Score: 4.9
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Oracle): 4.9
Vendor Vector (Oracle): 🔍

NVD Base Score: 4.9
NVD Vector: 🔍

CNA Base Score: 4.9
CNA Vector (Oracle): 🔍

CVSSv2info

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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

12/10/2019 🔍
04/15/2020 +127 days 🔍
04/15/2020 +0 days 🔍
04/15/2020 +0 days 🔍
05/25/2024 +1501 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - April 2020
Status: Confirmed

CVE: CVE-2020-2903 (🔍)
GCVE (CVE): GCVE-0-2020-2903
GCVE (VulDB): GCVE-100-153583
See also: 🔍

Entryinfo

Created: 04/15/2020 12:42
Updated: 05/25/2024 14:33
Changes: 04/15/2020 12:42 (63), 05/25/2024 14:32 (17), 05/25/2024 14:33 (17)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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