CVE-2023-21827 Information disclosure in Database - Enterprise Edition

What is CVE-2023-21827?

CVE-2023-21827 is a medium-severity vulnerability in Oracle Database, published on 17 Jan 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Vulnerability in the Oracle Database Data Redaction component of Oracle Database Server. Supported versions that are affected are 19c and 21c. Easily exploitable vulnerability allows low privileged attacker having Create Session privilege with network access via Oracle Net to compromise Oracle Database Data Redaction. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Database Data Redaction accessible data. CVSS 3.1 Base Score 4.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).

Which versions are affected by CVE-2023-21827?

It affects 1 product.

Products include Oracle Database.

How do I fix CVE-2023-21827?

No fix has been published for CVE-2023-21827 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-21827 being exploited?

There is no known exploitation of CVE-2023-21827 in the wild and no public exploit code.

Other vulnerabilities in Oracle Database

• CVE-2017-10202 Privilege escalation in Oracle Database Critical 9.9
• CVE-2017-3310 Privilege escalation in Oracle Database Critical 9.0
• CVE-2016-3609 Other in n/a Critical 9.0
• CVE-2016-3454 Other in n/a Critical 9.0
• CVE-2022-21510 Privilege escalation in Database - Enterprise Edition High 8.8

All Oracle Database vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-r6jx-2q37-94rg.