CVE-2020-2511
HIGHOracle Database Server 12.1.0.2, 12.2.0.1, 18c, 19c - Authenticated Denial of Service in Core RDBMS
Title source: llmDescription
Vulnerability in the Core RDBMS 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 low privileged attacker having Create Session privilege with network access via OracleNet to compromise Core RDBMS. While the vulnerability is in Core RDBMS, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Core RDBMS. CVSS 3.0 Base Score 7.7 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H).
References (1)
Core 1
Core References
Patch, Vendor Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpujan2020.html
Scores
CVSS v3
7.7
EPSS
0.0132
EPSS Percentile
67.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
Status
published
Products (4)
oracle/database_server
12.1.0.2
oracle/database_server
12.2.0.1
oracle/database_server
18c
oracle/database_server
19c
Published
Jan 15, 2020
Tracked Since
Feb 18, 2026