--- title: "CVE-2025-9232\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-2025-9232?format=md keywords: index, follow --- # CVE-2025-9232 Publication date 30 September 2025 Last updated 26 November 2025 --- Ubuntu priority **Low** [Why this priority?](https://ubuntu.com/security/CVE-2025-9232?format=md#priority-reason ) ## Cvss 3 Severity Score **5.9 · Medium** [Score breakdown](https://ubuntu.com/security/CVE-2025-9232?format=md#impact-score) Toggle side navigation ## Description Issue summary: An application using the OpenSSL HTTP client API functions may trigger an out-of-bounds read if the 'no\_proxy' environment variable is set and the host portion of the authority component of the HTTP URL is an IPv6 address. Impact summary: An out-of-bounds read can trigger a crash which leads to Denial of Service for an application. The OpenSSL HTTP client API functions can be used directly by applications but they are also used by the OCSP client functions and CMP (Certificate Management Protocol) client implementation in OpenSSL. However the URLs used by these implementations are unlikely to be controlled by an attacker. In this vulnerable code the out of bounds read can only trigger a crash. Furthermore the vulnerability requires an attacker-controlled URL to be passed from an application to the OpenSSL function and the user has to have a 'no\_proxy' environment variable set. For the aforementioned reasons the issue was assessed as Low severity. The vulnerable code was introduced in the following patch releases: 3.0.16, 3.1.8, 3.2.4, 3.3.3, 3.4.0 and 3.5.0. The FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected by this issue, as the HTTP client implementation is outside the OpenSSL FIPS module boundary. [Read the notes from the security team](https://ubuntu.com/security/CVE-2025-9232?format=md#notes) ### Why is this CVE low priority? OpenSSL developers have rated this as being a low severity issue [Learn more about Ubuntu priority](https://ubuntu.com/security/cves/about#priority) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | nodejs | 26.04 LTS resolute | Not affected | | 25.10 questing | Not affected | | 25.04 plucky | Not affected | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Vulnerable | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Needs evaluation | | 16.04 LTS xenial | Needs evaluation | | 14.04 LTS trusty | Not affected | | edk2 | 26.04 LTS resolute | Fixed 2025.02-8ubuntu3 | | 25.10 questing | Fixed 2025.02-8ubuntu3 | | 25.04 plucky | Fixed 2025.02-3ubuntu2.2 | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Not affected | | openssl | 26.04 LTS resolute | Fixed 3.5.3-1ubuntu2 | | 25.10 questing | Fixed 3.5.3-1ubuntu2 | | 25.04 plucky | Fixed 3.4.1-1ubuntu4 | | 24.04 LTS noble | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Not affected | | openssl1.0 | 26.04 LTS resolute | Not in release | | 25.10 questing | Not in release | | 25.04 plucky | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Not affected | --- * [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-2025-9232?format=md#patch-details) ## Notes --- ### [mdeslaur](https://launchpad.net/~mdeslaur) only affects 3.5, 3.4, 3.3, 3.2 and 3.0 introduced by: https://github.com/openssl/openssl/commit/b59b74fd07ed541df9d555dc62ca6dd3ac97365b Older 3.0.x in noble and earlier don't contain the vulnerable commit. ### 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 | | --- | --- | | openssl | * Upstream: [7cf21a3](https://github.com/openssl/openssl/commit/7cf21a30513c9e43c4bc3836c237cf086e194af3) | ## Severity score breakdown CVSS version: CVSS v3.0 **Base score** 5.9 · Medium * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Network | | Attack complexity | High | | Privileges required | None | | User interaction | None | | Scope | Unchanged | | Confidentiality impact | None | | Integrity impact | None | | Availability impact | High | * Scores | Parameter | Value | | --- | --- | | Base score | 5.9 · Medium | | Exploitability score | - | | Impact score | - | **Vector:** CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-9232) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2025-9232) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2025-9232) * [Debian](https://security-tracker.debian.org/tracker/CVE-2025-9232) ### Related Ubuntu Security Notices (USN) + [USN-7786-1](https://usn.ubuntu.com/USN-7786-1) + OpenSSL vulnerabilities + 30 September 2025 + [USN-7894-1](https://usn.ubuntu.com/USN-7894-1) + EDK II vulnerabilities + 26 November 2025 ### Other references *