Oracle Java SE 7u241/8u231/11.0.5/13.0.1 Libraries denial of service

Summaryinfo

A vulnerability, which was classified as problematic, was found in Oracle Java SE 7u241/8u231/11.0.5/13.0.1. The impacted element is an unknown function of the component Libraries. Such manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2020-2654. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Oracle Java SE 7u241/8u231/11.0.5/13.0.1 (Programming Language Software) and classified as problematic. Affected by this issue is some unknown functionality of the component Libraries. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

Vulnerability in the Java SE product of Oracle Java SE (component: Libraries). Supported versions that are affected are Java SE: 7u241, 8u231, 11.0.5 and 13.0.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.0 Base Score 3.7 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).

The weakness was disclosed 01/15/2020 as Oracle Critical Patch Update Advisory - January 2020 as confirmed advisory (Website). The advisory is shared for download at oracle.com. This vulnerability is handled as CVE-2020-2654. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability scanner Nessus provides a plugin with the ID 208620 (CentOS 7 : java-1.8.0-ibm (RHSA-2020:2237)), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the vulnerability database at Tenable (208620). The entries VDB-149016, VDB-149015, VDB-149014 and VDB-149013 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Programming Language Software

Vendor

• Oracle

Name

• Java SE

Version

• 7u241
• 8u231
• 11.0.5
• 13.0.1

License

• open-source

Website

• Vendor: https://www.oracle.com

CPE 2.3info

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Once again VulDB remains the best source for vulnerability data.

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