CVE-2024-21126 Denial of service in Database - Enterprise Edition
Unauthenticated attackers can cause partial denial of service in Oracle Database Portable Clusterware via network access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-21126?
CVE-2024-21126 is a medium-severity denial of service vulnerability in Oracle Database Server, published on 16 Jul 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Vulnerability in the Oracle Database Portable Clusterware component of Oracle Database Server. Supported versions that are affected are 19.3-19.23 and 21.3-21.14. Easily exploitable vulnerability allows unauthenticated attacker with network access via DNS to compromise Oracle Database Portable Clusterware. While the vulnerability is in Oracle Database Portable Clusterware, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Database Portable Clusterware. CVSS 3.1 Base Score 5.8 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L).
Weakness: CWE-400
Which versions are affected by CVE-2024-21126?
It affects 1 product.
Products include Oracle Database Server.
How do I fix CVE-2024-21126?
No fix has been published for CVE-2024-21126 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-21126 being exploited?
There is no known exploitation of CVE-2024-21126 in the wild and no public exploit code.
Other vulnerabilities in Oracle Database Server
Sources
Also known as GHSA-99h2-3927-3h39.