--- title: "CVE-2022-40433\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2022-40433?format=md keywords: index, follow --- # CVE-2022-40433 Publication date 22 August 2023 Last updated 4 August 2025 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) ## Cvss 3 Severity Score **4.9 · Medium** [Score breakdown](https://ubuntu.com/security/CVE-2022-40433?format=md#impact-score) Toggle side navigation ## Description Rejected reason: \*\* REJECT \*\* This CVE ID has been rejected by its CNA as it was not a security issue. ### From the Ubuntu Security Team It was discovered that the HotSpot VM implementation in OpenJDK did not properly validate bytecode blocks in certain situations. An attacker could possibly use this to cause a denial of service. ## Status Show unmaintained releases --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) * [Patch details](https://ubuntu.com/security/CVE-2022-40433?format=md#patch-details) ### Get expanded security coverage with Ubuntu Pro Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use. [Get Ubuntu Pro](https://ubuntu.com/pro) [30-day free trial](https://ubuntu.com/pro/free-trial) ### Patch details For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) | Package | Patch details | | --- | --- | | openjdk-8 | * Upstream: [50d9af9](https://github.com/openjdk/jdk8u/commit/50d9af9b9371bedf971ee8c4c73283391f0ebb82) | ## Severity score breakdown CVSS version: CVSS v3.0 **Base score** 4.9 · Medium * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Network | | Attack complexity | Low | | Privileges required | High | | User interaction | None | | Scope | Unchanged | | Confidentiality impact | None | | Integrity impact | None | | Availability impact | High | * Scores | Parameter | Value | | --- | --- | | Base score | 4.9 · Medium | | Exploitability score | - | | Impact score | - | **Vector:** CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-40433) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-40433) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2022-40433) * [Debian](https://security-tracker.debian.org/tracker/CVE-2022-40433) ### Related Ubuntu Security Notices (USN) + [USN-6528-1](https://usn.ubuntu.com/USN-6528-1) + OpenJDK 8 vulnerabilities + 29 November 2023 ### Other references * * * * *