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 a malicious certificate or for an application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address in a certificate to overflow an arbitrary number of bytes containing the `.' character (decimal 46) on the stack. This buffer overflow could result in a crash (causing a denial of service). 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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenSSL | OpenSSL | 3.0.0 – < 3.0.7 | 3.0.7 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openssl | 3.0.7-1 | — |
| Debian 13 | openssl | 3.0.7-1 | — |
| Debian 12 | openssl | 3.0.7-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | openssl | 3.0.2-0ubuntu1.7 | USN-5710-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | openssl +3 | 1:3.0.1-43.el9_0 | RHSA-2022:7288 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | openssl +3 | 1:3.0.1-43.el9_0 | ALSA-2022:7288 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | openssl | 1:3.0.1-43.el9_0 | RLSA-2022:7288 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | openssl-3 | 3.0.1-150400.4.11.1 | SUSE-SU-2022:4586-1, SUSE-SU-2022:3843-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | cargo-audit-advisory-db | 20221102-1.1 | openSUSE-SU-2024:12469-1 |
| openSUSE Tumbleweed | openssl-3 | 3.0.7-1.1 | openSUSE-SU-2024:12475-1 |
| openSUSE Tumbleweed | python-cryptography | 38.0.3-1.1 | openSUSE-SU-2025:14739-1, openSUSE-SU-2024:12480-1, openSUSE-SU-2024:12479-1 |
| openSUSE Tumbleweed | python-cryptography-vectors | 44.0.0-1.1 | openSUSE-SU-2025:14740-1 |
| openSUSE Leap 15.4 | openssl-3 | 3.0.1-150400.4.11.1 | SUSE-SU-2022:4586-1, SUSE-SU-2022:3843-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | nodejs | 18.12.1-r0 | — |
| Alpine v3.24 | openssl | 3.0.7-r0 | — |
| Alpine v3.23 | nodejs | 18.12.1-r0 | — |
| Alpine v3.23 | openssl | 3.0.7-r0 | — |
| Alpine v3.22 | nodejs | 18.12.1-r0 | — |
| Alpine v3.22 | openssl | 3.0.7-r0 | — |
| Alpine v3.21 | nodejs | 18.12.1-r0 | — |
| Alpine v3.21 | openssl | 3.0.7-r0 | — |
| Alpine v3.20 | nodejs | 18.12.1-r0 | — |
| Alpine v3.20 | openssl | 3.0.7-r0 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | nodejs | 18.12.1-r0 | — |
| Alpine v3.19 | openssl | 3.0.7-r0 | — |
| Alpine v3.18 | nodejs | 18.12.1-r0 | — |
| Alpine v3.18 | openssl | 3.0.7-r0 | — |
| Alpine v3.17 | nodejs | 18.12.1-r0 | — |
| Alpine v3.17 | openssl | 3.0.7-r0 | — |
| Alpine v3.16 | openssl3 | 3.0.7-r0 | — |
| Alpine v3.15 | openssl3 | 3.0.7-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | nodejs +4 | 1:18.12.1-1.amzn2023.0.2 | ALAS2023-2023-084 |
| Amazon Linux 2023 | npm | 1:8.19.2-1.18.12.1.1.amzn2023.0.2 | ALAS2023-2023-084 |
| Amazon Linux 2023 | openssl +3 | 1:3.0.5-1.amzn2023.0.4 | ALAS2023-2023-051 |
| Amazon Linux 2023 | v8-devel | 2:10.2.154.15-1.18.12.1.1.amzn2023.0.2 | ALAS2023-2023-084 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | openssl +3 | 1:3.0.1-43.0.1.el9_0 | ELSA-2022-7288 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | openssl | 3.0.7-r0 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
WhatTheFuzz/openssl-fuzz ★ 5 · Jan 11, 2023
Finding CVE-2022-3786 (openssl) with Mayhem
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| crates.io | openssl-src | >= 300.0.0, < 300.0.11 | 300.0.11 | GHSA-h8jm-2x53-xhp5 |
Advisories 26
- ALSA-2022:7288 Important: openssl security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2022:7288 Red Hat Security Advisory: openssl security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- USN-5710-1 openssl vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- ICSA-22-349-09 Siemens Products affected by OpenSSL 3.0 CISA ICS & IT advisories · Apr 16, 2026
- SSA-408105 SSA-408105: Buffer Overflow Vulnerabilities in OpenSSL 3.0 Affecting Siemens Products Siemens ProductCERT · Apr 14, 2026
- RLSA-2022:7288 Important: openssl security update Rocky Linux Security Advisories · Feb 5, 2026
- openSUSE-SU-2024:12475-1 libopenssl-3-devel-3.0.7-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3843-1 Security update for openssl-3 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2025:14740-1 python311-cryptography-vectors-44.0.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12469-1 cargo-audit-advisory-db-20221102-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:4586-1 Security update for openssl-3 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12480-1 python310-cryptography-vectors-38.0.3-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2025:14739-1 python311-cryptography-44.0.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12479-1 python310-cryptography-38.0.3-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- ICSA-22-349-10 Siemens APOGEE/TALON Field Panels CISA ICS & IT advisories · May 6, 2025
- ICSA-22-349-12 Siemens Parasolid CISA ICS & IT advisories · May 6, 2025
- NCSC-2025-0123 Kwetsbaarheden verholpen in Oracle Database Producten NCSC-NL (Netherlands) · Apr 16, 2025
- WID-SEC-2022-1922 OpenSSL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 5, 2025
- ICSA-23-229-01 ICONICS and Mitsubishi Electric Products CISA ICS & IT advisories · Aug 17, 2023
- WID-SEC-2023-1969 HPE Fabric OS: Mehrere Schwachstellen ermöglichen Privilegieneskalation BSI CERT-Bund (WID) · Aug 6, 2023
- WID-SEC-2023-0561 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 18, 2023
- ALAS2023-2023-051 Important: openssl security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 22, 2023
- ALAS2023-2023-084 Important: nodejs security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 22, 2023
- ICSA-23-019-01 Hitachi Energy PCU400 CISA ICS & IT advisories · Jan 19, 2023
- ICSA-23-005-03 Hitachi Energy Lumada Asset Performance Management CISA ICS & IT advisories · Jan 5, 2023
- ELSA-2022-7288 Important: openssl security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 1, 2022
References
- OpenSSL Advisory vendor-advisory
- 3.0.7 git commit patch