# CVE-2022-3602: OpenSSL: CVE-2022-3602 X.509 certificate verification buffer overrun CVE-2022-3602 is fixed in 21 products on 2 platforms, first by libssl3 3.0.2-0ubuntu1.7, released October 31, 2022. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2022-3602 - Priority: High - CVSS: 7.5 (High) - EPSS: 0.9077 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: N/A - Published: Oct 31, 2022 - Weakness: CWE-787: Out-of-bounds Write - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-3602 ## Description A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. Fixed in OpenSSL 3.0.7 (Affected 3.0.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6). ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Windows apps | Node.js 18 | 18.12.1 | [Node.js 18 18.12.1](https://patchblox.com/security/data/fix/windows-app/openjs.nodejs.18-18.12.1.md) | Nov 4, 2022 | | Windows apps | Node.js 19 | 19.0.1 | [Node.js 19 19.0.1](https://patchblox.com/security/data/fix/windows-app/openjs.nodejs.19-19.0.1.md) | Nov 4, 2022 | | Linux | libssl3 Ubuntu 22.04.1 LTS (jammy) | 3.0.2-0ubuntu1.7 | [libssl3 3.0.2-0ubuntu1.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libssl3-3.0.2-0ubuntu1.7.md) | Oct 31, 2022 | | Linux | libssl3t64 Ubuntu 24.10 (oracular) | 3.0.5-2ubuntu2 | [libssl3t64 3.0.5-2ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libssl3t64-3.0.5-2ubuntu2.md) | Nov 1, 2022 | | Linux | libssl3t64 Ubuntu 25.04 (plucky) | 3.0.5-2ubuntu2 | [libssl3t64 3.0.5-2ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libssl3t64-3.0.5-2ubuntu2.md) | Nov 1, 2022 | | Linux | nodejs amzn 2023 | 1:18.12.1-1.amzn2023.0.2 | [ALAS2023-2023-084](https://patchblox.com/security/data/fix/linux/alas2023-2023-084.md) | Feb 17, 2023 | | Linux | nodejs-debuginfo amzn 2023 | 1:18.12.1-1.amzn2023.0.2 | [ALAS2023-2023-084](https://patchblox.com/security/data/fix/linux/alas2023-2023-084.md) | Feb 17, 2023 | | Linux | nodejs-debugsource amzn 2023 | 1:18.12.1-1.amzn2023.0.2 | [ALAS2023-2023-084](https://patchblox.com/security/data/fix/linux/alas2023-2023-084.md) | Feb 17, 2023 | | Linux | nodejs-devel amzn 2023 | 1:18.12.1-1.amzn2023.0.2 | [ALAS2023-2023-084](https://patchblox.com/security/data/fix/linux/alas2023-2023-084.md) | Feb 17, 2023 | | Linux | nodejs-docs amzn 2023 | 1:18.12.1-1.amzn2023.0.2 | [ALAS2023-2023-084](https://patchblox.com/security/data/fix/linux/alas2023-2023-084.md) | Feb 17, 2023 | | Linux | nodejs-full-i18n amzn 2023 | 1:18.12.1-1.amzn2023.0.2 | [ALAS2023-2023-084](https://patchblox.com/security/data/fix/linux/alas2023-2023-084.md) | Feb 17, 2023 | | Linux | nodejs-libs amzn 2023 | 1:18.12.1-1.amzn2023.0.2 | [ALAS2023-2023-084](https://patchblox.com/security/data/fix/linux/alas2023-2023-084.md) | Feb 17, 2023 | | Linux | nodejs-libs-debuginfo amzn 2023 | 1:18.12.1-1.amzn2023.0.2 | [ALAS2023-2023-084](https://patchblox.com/security/data/fix/linux/alas2023-2023-084.md) | Feb 17, 2023 | | Linux | npm amzn 2023 | 1:8.19.2-1.18.12.1.1.amzn2023.0.2 | [ALAS2023-2023-084](https://patchblox.com/security/data/fix/linux/alas2023-2023-084.md) | Feb 17, 2023 | | Linux | openssl Debian 12.15 (bookworm) | 3.0.7-1 | [DEBIAN-CVE-2022-3602](https://patchblox.com/security/data/fix/linux/debian-cve-2022-3602.md) | Nov 1, 2022 | | Linux | openssl Debian 13.5 (trixie) | 3.0.7-1 | [DEBIAN-CVE-2022-3602](https://patchblox.com/security/data/fix/linux/debian-cve-2022-3602.md) | Nov 1, 2022 | | Linux | openssl Debian 14 | 3.0.7-1 | [DEBIAN-CVE-2022-3602](https://patchblox.com/security/data/fix/linux/debian-cve-2022-3602.md) | Nov 1, 2022 | | Linux | openssl RHEL 9 | 1:3.0.1-43.el9_0 | [RHSA-2022:7288](https://patchblox.com/security/data/fix/linux/rhsa-2022-7288.md) | Nov 1, 2022 | | Linux | openssl Ubuntu 22.04.1 LTS (jammy) | 3.0.2-0ubuntu1.7 | [openssl 3.0.2-0ubuntu1.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-openssl-3.0.2-0ubuntu1.7.md) | Oct 31, 2022 | | Linux | openssl Ubuntu 24.10 (oracular) | 3.0.5-2ubuntu2 | [openssl 3.0.5-2ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-openssl-3.0.5-2ubuntu2.md) | Nov 1, 2022 | | Linux | openssl Ubuntu 25.04 (plucky) | 3.0.5-2ubuntu2 | [openssl 3.0.5-2ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-openssl-3.0.5-2ubuntu2.md) | Nov 1, 2022 | | Linux | openssl almalinux 9 | 1:3.0.1-43.el9_0 | [ALSA-2022:7288](https://patchblox.com/security/data/fix/linux/alsa-2022-7288.md) | Nov 1, 2022 | | Linux | openssl amzn 2023 | 1:3.0.5-1.amzn2023.0.4 | [ALAS2023-2023-051](https://patchblox.com/security/data/fix/linux/alas2023-2023-051.md) | Feb 17, 2023 | | Linux | openssl ol 9 | 1:3.0.1-43.0.1.el9_0 | [ELSA-2022-7288](https://patchblox.com/security/data/fix/linux/elsa-2022-7288.md) | Nov 1, 2022 | | Linux | openssl rocky 9 | 1:3.0.1-43.el9_0 | [RLSA-2022:7288](https://patchblox.com/security/data/fix/linux/rlsa-2022-7288.md) | Nov 1, 2022 | | Linux | openssl-debuginfo amzn 2023 | 1:3.0.5-1.amzn2023.0.4 | [ALAS2023-2023-051](https://patchblox.com/security/data/fix/linux/alas2023-2023-051.md) | Feb 17, 2023 | | Linux | openssl-debugsource amzn 2023 | 1:3.0.5-1.amzn2023.0.4 | [ALAS2023-2023-051](https://patchblox.com/security/data/fix/linux/alas2023-2023-051.md) | Feb 17, 2023 | | Linux | openssl-devel RHEL 9 | 1:3.0.1-43.el9_0 | [RHSA-2022:7288](https://patchblox.com/security/data/fix/linux/rhsa-2022-7288.md) | Nov 1, 2022 | | Linux | openssl-devel almalinux 9 | 1:3.0.1-43.el9_0 | [ALSA-2022:7288](https://patchblox.com/security/data/fix/linux/alsa-2022-7288.md) | Nov 1, 2022 | | Linux | openssl-devel amzn 2023 | 1:3.0.5-1.amzn2023.0.4 | [ALAS2023-2023-051](https://patchblox.com/security/data/fix/linux/alas2023-2023-051.md) | Feb 17, 2023 | | Linux | openssl-devel ol 9 | 1:3.0.1-43.0.1.el9_0 | [ELSA-2022-7288](https://patchblox.com/security/data/fix/linux/elsa-2022-7288.md) | Nov 1, 2022 | | Linux | openssl-libs RHEL 9 | 1:3.0.1-43.el9_0 | [RHSA-2022:7288](https://patchblox.com/security/data/fix/linux/rhsa-2022-7288.md) | Nov 1, 2022 | | Linux | openssl-libs almalinux 9 | 1:3.0.1-43.el9_0 | [ALSA-2022:7288](https://patchblox.com/security/data/fix/linux/alsa-2022-7288.md) | Nov 1, 2022 | | Linux | openssl-libs amzn 2023 | 1:3.0.5-1.amzn2023.0.4 | [ALAS2023-2023-051](https://patchblox.com/security/data/fix/linux/alas2023-2023-051.md) | Feb 17, 2023 | | Linux | openssl-libs ol 9 | 1:3.0.1-43.0.1.el9_0 | [ELSA-2022-7288](https://patchblox.com/security/data/fix/linux/elsa-2022-7288.md) | Nov 1, 2022 | | Linux | openssl-libs-debuginfo amzn 2023 | 1:3.0.5-1.amzn2023.0.4 | [ALAS2023-2023-051](https://patchblox.com/security/data/fix/linux/alas2023-2023-051.md) | Feb 17, 2023 | | Linux | openssl-perl RHEL 9 | 1:3.0.1-43.el9_0 | [RHSA-2022:7288](https://patchblox.com/security/data/fix/linux/rhsa-2022-7288.md) | Nov 1, 2022 | | Linux | openssl-perl almalinux 9 | 1:3.0.1-43.el9_0 | [ALSA-2022:7288](https://patchblox.com/security/data/fix/linux/alsa-2022-7288.md) | Nov 1, 2022 | | Linux | openssl-perl amzn 2023 | 1:3.0.5-1.amzn2023.0.4 | [ALAS2023-2023-051](https://patchblox.com/security/data/fix/linux/alas2023-2023-051.md) | Feb 17, 2023 | | Linux | openssl-perl ol 9 | 1:3.0.1-43.0.1.el9_0 | [ELSA-2022-7288](https://patchblox.com/security/data/fix/linux/elsa-2022-7288.md) | Nov 1, 2022 | | Linux | v8-devel amzn 2023 | 2:10.2.154.15-1.18.12.1.1.amzn2023.0.2 | [ALAS2023-2023-084](https://patchblox.com/security/data/fix/linux/alas2023-2023-084.md) | Feb 17, 2023 | --- Data as of 2026-11-07T18:46:35Z UTC. 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