TI-2020-02436 Aliases CVE-2020-2734 GHSA-jjf4-23g8-gc3w

Vulnerability in the RDBMS/Optimizer component of Oracle Database Server.

LOW 14Published 2020-04-15 · Updated 2024-09-30

Key facts

Attack vector: Network
Privileges required: High
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Low · None · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Vulnerability in the RDBMS/Optimizer component of Oracle Database Server. Supported versions that are affected are 12.1.0.2, 12.2.0.1, 18c and 19c. Easily exploitable vulnerability allows high privileged attacker having Execute on DBMS_SQLTUNE privilege with network access via Oracle Net to compromise RDBMS/Optimizer. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized read access to a subset of RDBMS/Optimizer accessible data. CVSS 3.0 Base Score 2.4 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00892 59th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Oracle	Oracle Database	12.1.0.2; 12.2.0.1; 18c; 19c	—	No fix listed	CNA

Oracle Database VendorOracle Affected 12.1.0.2; 12.2.0.1; 18c; 19c Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:oracle:database_server:12.1.0.2:::::::*	12.1.0.2	Vulnerable	Oracle
cpe:2.3:a:oracle:database_server:12.2.0.1:::::::*	12.2.0.1	Vulnerable	Oracle
cpe:2.3:a:oracle:database_server:18c:::::::*	18c	Vulnerable	Oracle
cpe:2.3:a:oracle:database_server:19c:::::::*	19c	Vulnerable	Oracle

cpe:2.3:a:oracle:database_server:12.1.0.2:*:*:*:*:*:*:* Versions 12.1.0.2 Vulnerable ·Oracle
cpe:2.3:a:oracle:database_server:12.2.0.1:*:*:*:*:*:*:* Versions 12.2.0.1 Vulnerable ·Oracle
cpe:2.3:a:oracle:database_server:18c:*:*:*:*:*:*:* Versions 18c Vulnerable ·Oracle
cpe:2.3:a:oracle:database_server:19c:*:*:*:*:*:*:* Versions 19c Vulnerable ·Oracle

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-2734
2026-10-03 Alias added: GHSA-jjf4-23g8-gc3w

References

Advisory 1

https://www.oracle.com/security-alerts/cpuapr2020.html

TI-2009-01887 Unspecified vulnerability in the Network Authentication component in Oracle Database… CVSS 2.0HIGH 10.0
TI-2002-00816 Cross-site scripting (XSS) vulnerability in the default error page of Apache 2.0 before… CVSS 2.0MEDIUM 6.8
TI-2012-01463 The TNS Listener, as used in Oracle Database 11g 11.1.0.7, 11.2.0.2, and 11.2.0.3, and… CVSS 2.0HIGH 7.5
TI-2010-03429 Unspecified vulnerability in the Client System Analyzer component in Oracle Database… CVSS 2.0HIGH 7.5
TI-2006-00277 Unspecified vulnerability in the Oracle HTTP Server component of Oracle Database Server… CVSS 2.0HIGH 10.0
TI-2018-10571 FasterXML jackson-databind 2.x before 2.9.7 might allow remote attackers to execute… CVSS 3.1CRITICAL 9.8

See all 530 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences