CVE-2022-3786

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.

References

Link	Resource
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c42165b5706e42f67ef8ef4c351a9a4c5d21639a	Patch Vendor Advisory
https://www.openssl.org/news/secadv/20221101.txt	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:36:::::::*
	cpe:2.3:o:fedoraproject:fedora:37:::::::*

Configuration 3 (hide)

OR	cpe:2.3:a:nodejs:node.js:::::-:::*
	cpe:2.3:a:nodejs:node.js:18.12.0::::lts:::
	cpe:2.3:a:nodejs:node.js:19.0.0::::-:::

History

04 Nov 2022, 12:15

Type	Values Removed	Values Added
Summary	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. 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).	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.
References	{'url': 'http://www.openwall.com/lists/oss-security/2022/11/02/11', 'name': '[oss-security] 20221102 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': [], 'refsource': 'MLIST'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/02/1', 'name': '[oss-security] 20221101 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'} ~~{'url': 'https://security.gentoo.org/glsa/202211-01', 'name': 'GLSA-202211-01', 'tags': ['Issue Tracking', 'Third Party Advisory'], 'refsource': 'GENTOO'}~~ {'url': 'http://www.openwall.com/lists/oss-security/2022/11/02/2', 'name': '[oss-security] 20221101 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/02/15', 'name': '[oss-security] 20221102 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': [], 'refsource': 'MLIST'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/02/12', 'name': '[oss-security] 20221102 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)', 'tags': [], 'refsource': 'MLIST'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/02/10', 'name': '[oss-security] 20221102 Re: Fwd: Node.js security updates for all active release lines, November 2022', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/02/7', 'name': '[oss-security] 20221102 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'} {'url': 'https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0023', 'name': 'https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0023', 'tags': ['Third Party Advisory'], 'refsource': 'CONFIRM'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/01/21', 'name': '[oss-security] 20221101 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/02/9', 'name': '[oss-security] 20221102 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)', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'} {'url': 'http://packetstormsecurity.com/files/169687/OpenSSL-Security-Advisory-20221101.html', 'name': 'http://packetstormsecurity.com/files/169687/OpenSSL-Security-Advisory-20221101.html', 'tags': [], 'refsource': 'MISC'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/02/5', 'name': '[oss-security] 20221102 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/01/19', 'name': '[oss-security] 20221101 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'} ~~{'url': 'https://security.netapp.com/advisory/ntap-20221102-0001/', 'name': 'https://security.netapp.com/advisory/ntap-20221102-0001/', 'tags': [], 'refsource': 'CONFIRM'}~~ {'url': 'http://www.openwall.com/lists/oss-security/2022/11/01/17', 'name': '[oss-security] 20221102 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/01/24', 'name': '[oss-security] 20221101 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/02/13', 'name': '[oss-security] 20221102 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': [], 'refsource': 'MLIST'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/02/3', 'name': '[oss-security] 20221101 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'} {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/63YRPWPUSX3MBHNPIEJZDKQT6YA7UF6S/', 'name': 'FEDORA-2022-502f096dce', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/01/18', 'name': '[oss-security] 20221101 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'} {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DWP23EZYOBDJQP7HP4YU7W2ABU2YDITS/', 'name': 'FEDORA-2022-0f1d2e0537', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/01/16', 'name': '[oss-security] 20221101 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/02/6', 'name': '[oss-security] 20221102 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/01/15', 'name': '[oss-security] 20221101 OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/02/14', 'name': '[oss-security] 20221102 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)', 'tags': [], 'refsource': 'MLIST'} {'url': 'https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-openssl-W9sdCc2a', 'name': '20221028 Vulnerabilities in OpenSSL Affecting Cisco Products: November 2022', 'tags': ['Third Party Advisory'], 'refsource': 'CISCO'} {'url': 'http://www.openwall.com/lists/oss-security/2022/11/01/20', 'name': '[oss-security] 20221101 Re: OpenSSL X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'}
References	~~(CONFIRM) https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c42165b5706e42f67ef8ef4c351a9a4c5d21639a - Mailing List, Patch, Vendor Advisory~~	(MISC) https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c42165b5706e42f67ef8ef4c351a9a4c5d21639a -

02 Nov 2022, 22:15

Type	Values Removed	Values Added
References		(CONFIRM) https://security.netapp.com/advisory/ntap-20221102-0001/ -

02 Nov 2022, 21:15

Type	Values Removed	Values Added
References		(MLIST) http://www.openwall.com/lists/oss-security/2022/11/02/13 - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/02/14 - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/02/15 -

02 Nov 2022, 18:15

Type	Values Removed	Values Added
References		(MLIST) http://www.openwall.com/lists/oss-security/2022/11/02/11 - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/02/12 -

02 Nov 2022, 17:15

02 Nov 2022, 15:15

Type	Values Removed	Values Added
References		(MLIST) http://www.openwall.com/lists/oss-security/2022/11/02/9 - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/02/10 - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/02/7 -

02 Nov 2022, 13:15

Type	Values Removed	Values Added
References		(MLIST) http://www.openwall.com/lists/oss-security/2022/11/02/1 - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/02/3 - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/02/2 - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/02/6 - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/02/5 -

02 Nov 2022, 04:15

Type	Values Removed	Values Added
References		(MLIST) http://www.openwall.com/lists/oss-security/2022/11/01/19 - (GENTOO) https://security.gentoo.org/glsa/202211-01 - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/01/17 - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/01/24 - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/63YRPWPUSX3MBHNPIEJZDKQT6YA7UF6S/ - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/01/18 - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DWP23EZYOBDJQP7HP4YU7W2ABU2YDITS/ - (CONFIRM) https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0023 - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/01/21 - (CISCO) https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-openssl-W9sdCc2a - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/01/20 -

01 Nov 2022, 21:15

Type	Values Removed	Values Added
References		(MLIST) http://www.openwall.com/lists/oss-security/2022/11/01/15 - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/01/16 -

01 Nov 2022, 19:40

Type	Values Removed	Values Added
New CVE

7.5^/10

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED