--- title: "CVE-2023-0767\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-2023-0767?format=md keywords: index, follow --- # CVE-2023-0767 Publication date 15 February 2023 Last updated 26 August 2025 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) ## Cvss 3 Severity Score **8.8 · High** [Score breakdown](https://ubuntu.com/security/CVE-2023-0767?format=md#impact-score) Toggle side navigation ## Description An attacker could construct a PKCS 12 cert bundle in such a way that could allow for arbitrary memory writes via PKCS 12 Safe Bag attributes being mishandled. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. [Read the notes from the security team](https://ubuntu.com/security/CVE-2023-0767?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | firefox | 24.04 LTS noble | Not affected | | 23.10 mantic | Not affected | | 23.04 lunar | Not affected | | 22.10 kinetic | Not affected | | 22.04 LTS jammy | Not affected | | 20.04 LTS focal | Fixed 110.0+build3-0ubuntu0.20.04.1 | | 18.04 LTS bionic | Fixed 110.0+build3-0ubuntu0.18.04.1 | | 16.04 LTS xenial | Ignored end of standard support | | 14.04 LTS trusty | Ignored end of standard support | | mozjs38 | 22.10 kinetic | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Ignored end of standard support, was needs-triage | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | mozjs52 | 22.10 kinetic | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored | | 18.04 LTS bionic | Ignored end of standard support, was needs-triage | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | mozjs68 | 22.10 kinetic | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | mozjs78 | 24.04 LTS noble | Not in release | | 23.10 mantic | Not in release | | 23.04 lunar | Ignored end of life, was needs-triage | | 22.10 kinetic | Ignored end of life, was needs-triage | | 22.04 LTS jammy | Ignored | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | mozjs91 | 22.10 kinetic | Not in release | | 22.04 LTS jammy | Ignored | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | nss | 24.04 LTS noble | Fixed 2:3.87.1-1 | | 23.10 mantic | Fixed 2:3.87.1-1 | | 23.04 lunar | Fixed 2:3.87.1-1 | | 22.10 kinetic | Fixed 2:3.82-1ubuntu0.1 | | 22.04 LTS jammy | Fixed 2:3.68.2-0ubuntu1.2 | | 20.04 LTS focal | Fixed 2:3.49.1-1ubuntu1.9 | | 18.04 LTS bionic | Fixed 2:3.35-2ubuntu2.16 | | 16.04 LTS xenial | Fixed 2:3.28.4-0ubuntu0.16.04.14+esm4 Ubuntu Pro | | 14.04 LTS trusty | Fixed 2:3.28.4-0ubuntu0.14.04.5+esm12 Ubuntu Pro | | thunderbird | 24.04 LTS noble | Not affected | | 23.10 mantic | Not affected | | 23.04 lunar | Not affected | | 22.10 kinetic | Fixed 1:102.8.0+build2-0ubuntu0.22.10.1 | | 22.04 LTS jammy | Fixed 1:102.8.0+build2-0ubuntu0.22.04.1 | | 20.04 LTS focal | Fixed 1:102.8.0+build2-0ubuntu0.20.04.1 | | 18.04 LTS bionic | Fixed 1:102.8.0+build2-0ubuntu0.18.04.1 | | 16.04 LTS xenial | Ignored end of standard support | | 14.04 LTS trusty | Ignored end of standard support | --- * [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-2023-0767?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) ## Notes --- ### [tyhicks](https://launchpad.net/~tyhicks) mozjs contains a copy of the SpiderMonkey JavaScript engine --- ### [mdeslaur](https://launchpad.net/~mdeslaur) starting with Ubuntu 22.04, the firefox package is just a script that installs the Firefox snap ### 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 | | --- | --- | | nss | * Upstream: * Upstream: * Upstream: | ## Severity score breakdown CVSS version: CVSS v3.0 **Base score** 8.8 · High * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Network | | Attack complexity | Low | | Privileges required | None | | User interaction | Required | | Scope | Unchanged | | Confidentiality impact | High | | Integrity impact | High | | Availability impact | High | * Scores | Parameter | Value | | --- | --- | | Base score | 8.8 · High | | Exploitability score | - | | Impact score | - | **Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0767) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2023-0767) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2023-0767) * [Debian](https://security-tracker.debian.org/tracker/CVE-2023-0767) ### Related Ubuntu Security Notices (USN) + [USN-5880-1](https://usn.ubuntu.com/USN-5880-1) + Firefox vulnerabilities + 20 February 2023 + [USN-5892-1](https://usn.ubuntu.com/USN-5892-1) + NSS vulnerabilities + 27 February 2023 + [USN-5892-2](https://usn.ubuntu.com/USN-5892-2) + NSS vulnerability + 6 March 2023 + [USN-5943-1](https://usn.ubuntu.com/USN-5943-1) + Thunderbird vulnerabilities + 13 March 2023 ### Other references * * *