X.509 Email Address Variable Length Buffer Overflow

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Summary

CVECVE-2022-3786
StatePUBLISHED
Assigneropenssl
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-11-01 18:15:11 UTC
Updated2026-04-14 10:16:26 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.214280000 probability, percentile 0.957120000 (date 2026-04-15)

Problem Types: CWE-120 | Buffer overflow | CWE-120 CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 36 All All All
Operating System Fedoraproject Fedora 37 All All All
Application Nodejs Node.js All All All All
Application Nodejs Node.js 18.12.0 All All All
Application Nodejs Node.js 19.0.0 All All All
Application Openssl Openssl All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OpenSSL OpenSSL affected 3.0.0 3.0.7 semver Not specified
ADP Siemens Calibre ICE affected V2022.4 V2023.1 custom Not specified
ADP Siemens Mcenter affected V5.2.1 V5.3.0 custom Not specified
ADP Siemens SCALANCE X204RNA HSR affected V3.2.7 V3.2.8 custom Not specified
ADP Siemens SCALANCE X204RNA PRP affected V3.2.7 V3.2.8 custom Not specified
ADP Siemens SCALANCE X204RNA EEC HSR affected V3.2.7 V3.2.8 custom Not specified
ADP Siemens SCALANCE X204RNA EEC PRP affected V3.2.7 V3.2.8 custom Not specified
ADP Siemens SCALANCE X204RNA EEC PRP/HSR affected V3.2.7 V3.2.8 custom Not specified
ADP Siemens SICAM GridPass affected V1.80 V2.20 custom Not specified
ADP Siemens SIMATIC RTLS Locating Manager affected V2.13.0.0 V2.13.0.3 custom Not specified

References

ReferenceSourceLinkTags
git.openssl.org Git - openssl.git/commitdiff af854a3a-2127-422b-91ae-364da2661108 git.openssl.org Patch, Vendor Advisory
cert-portal.siemens.com/productcert/html/ssa-408105.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
www.openssl.org/news/secadv/20221101.txt af854a3a-2127-422b-91ae-364da2661108 www.openssl.org Vendor Advisory
VU#794340 - OpenSSL 3.0.0 to 3.0.6 decodes some punycode email addresses in X.509 certificates improperly af854a3a-2127-422b-91ae-364da2661108 www.kb.cert.org
www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00789.html af854a3a-2127-422b-91ae-364da2661108 www.intel.com
CISCO:20221028 Vulnerabilities in OpenSSL Affecting Cisco Products: November 2022 MITRE tools.cisco.com
Security Advisory MITRE psirt.global.sonicwall.com
November 2022 OpenSSL Vulnerabilities in NetApp Products | NetApp Product Security MITRE security.netapp.com
[SECURITY] Fedora 37 Update: openssl-3.0.5-3.fc37 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 36 Update: openssl-3.0.5-2.fc36 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
OpenSSL: Multiple Vulnerabilities (GLSA 202211-01) — Gentoo security MITRE security.gentoo.org
OpenSSL Security Advisory 20221101 ≈ Packet Storm MITRE packetstormsecurity.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
git.openssl.org Git MITRE git.openssl.org
[SECURITY] Fedora 36 Update: openssl-3.0.5-2.fc36 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 37 Update: openssl-3.0.5-3.fc37 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
oss-security - OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: Fwd: Node.js security updates for all active release lines, November 2022 MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
oss-security - Re: Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786) MITRE www.openwall.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Viktor Dukhovni (en)

Legacy QID Mappings

  • 160191 Oracle Enterprise Linux Security Update for Open Secure Sockets Layer (OpenSSL) (ELSA-2022-7288)
  • 160192 Oracle Enterprise Linux Security Update for Open Secure Sockets Layer (OpenSSL) (ELSA-2022-9968)
  • 160258 Oracle Enterprise Linux Security Update for Open Secure Sockets Layer (OpenSSL) (ELSA-2022-10004)
  • 184506 Debian Security Update for Open Secure Sockets Layer (OpenSSL) (CVE-2022-3786)
  • 199012 Ubuntu Security Notification for Open Secure Sockets Layer (OpenSSL) Vulnerabilities (USN-5710-1)
  • 199113 Ubuntu Security Notification for Open Secure Sockets Layer (OpenSSL) Vulnerabilities (USN-5710-1)
  • 199114 Ubuntu Security Notification for Open Secure Sockets Layer (OpenSSL) Vulnerabilities (USN-5710-1)
  • 199115 Ubuntu Security Notification for Open Secure Sockets Layer (OpenSSL) Vulnerabilities (USN-5710-1)
  • 199116 Ubuntu Security Notification for Open Secure Sockets Layer (OpenSSL) Vulnerabilities (USN-5710-1)
  • 199117 Ubuntu Security Notification for Open Secure Sockets Layer (OpenSSL) Vulnerabilities (USN-5710-1)
  • 240798 Red Hat Update for Open Secure Sockets Layer (OpenSSL) (RHSA-2022:7288)
  • 283270 Fedora Security Update for Open Secure Sockets Layer (OpenSSL) (FEDORA-2022-502f096dce)
  • 283442 Fedora Security Update for Open Secure Sockets Layer (OpenSSL) (FEDORA-2022-0f1d2e0537)
  • 296086 Oracle Solaris 11.4 Support Repository Update (SRU) 51.132.1 Missing (CPUOCT2022)
  • 296098 Oracle Solaris 11.4 Support Repository Update (SRU) 52.132.2 Missing (CPUOCT2022)
  • 330128 IBM AIX Multiple Vulnerabilities in Open Secure Sockets Layer (OpenSSL) (openssl_advisory37)
  • 354102 Amazon Linux Security Advisory for Open Secure Sockets Layer (OpenSSL) : ALAS2022-2022-157
  • 354404 Amazon Linux Security Advisory for Open Secure Sockets Layer (OpenSSL) : ALAS2022-2022-157
  • 355250 Amazon Linux Security Advisory for Open Secure Sockets Layer (OpenSSL) : ALAS2023-2023-051
  • 355273 Amazon Linux Security Advisory for nodejs : ALAS2023-2023-084
  • 377733 Open Secure Sockets Layer (OpenSSL) Less Than 3.0.7 Buffer Overflow Vulnerability (Scan Utility)
  • 377881 Node.js Multiple Vulnerabilities (November 2022)
  • 377934 Node.js Multiple Vulnerabilities (November 2022)
  • 38879 Open Secure Sockets Layer (OpenSSL) Less Than 3.0.7 Buffer Overflow Vulnerability
  • 43945 FortiOS - Unauthorized Command Execution Vulnerability (FG-IR-22-419)
  • 502587 Alpine Linux Security Update for Open Secure Sockets Layer3 (OpenSSL3)
  • 502747 Alpine Linux Security Update for nodejs
  • 502755 Alpine Linux Security Update for openssl
  • 503688 Alpine Linux Security Update for openssl3
  • 520001 Open Secure Sockets Layer (OpenSSL) Multiple Vulnerabilities (CVE-2022-3602, CVE-2022-3786)
  • 591335 Hitachi Energy PCU400 Reliance on Uncontrolled Component Multiple Vulnerabilities (ICSA-23-019-01, 8DBD 000137)
  • 690972 Free Berkeley Software Distribution (FreeBSD) Security Update for Open Secure Sockets Layer (OpenSSL) (0844671c-5a09-11ed-856e-d4c9ef517024)
  • 710678 Gentoo Linux Open Secure Sockets Layer (OpenSSL) Multiple Vulnerabilities (GLSA 202211-01)
  • 752752 SUSE Enterprise Linux Security Update for Open Secure Sockets Layer (OpenSSL-3) (SUSE-SU-2022:3843-1)
  • 753024 SUSE Enterprise Linux Security Update for openssl-3 (SUSE-SU-2022:4586-1)
  • 940723 AlmaLinux Security Update for Open Secure Sockets Layer (OpenSSL) (ALSA-2022:7288)
  • 960515 Rocky Linux Security Update for Open Secure Sockets Layer (OpenSSL) (RLSA-2022:7288)
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