| Vulnerability Name: | CVE-2022-3786 |
| Assigned: | 2022-11-01 |
| Published: | 2022-11-01 |
| Updated: | 2024-06-01 |
| 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. |
| CVSS v3 Severity: | 7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)| Exploitability Metrics: | Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None | | Scope: | Scope (S): Unchanged
| | Impact Metrics: | Confidentiality (C): None
Integrity (I): None
Availibility (A): High |
7.5 High (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)| Exploitability Metrics: | Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None | | Scope: | Scope (S): Unchanged
| | Impact Metrics: | Confidentiality (C): None
Integrity (I): None
Availibility (A): High |
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| CVSS v2 Severity: | |
| References: | Source: MITRE
Type: CNA
CVE-2022-3786
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| Vulnerable Configuration: | Configuration RedHat 1:
cpe:/a:redhat:enterprise_linux:9:*:*:*:*:*:*:*Configuration RedHat 2:
cpe:/a:redhat:enterprise_linux:9::appstream:*:*:*:*:*Configuration RedHat 3:
cpe:/o:redhat:enterprise_linux:9:*:*:*:*:*:*:*Configuration RedHat 4:
cpe:/o:redhat:enterprise_linux:9::baseos:*:*:*:*:*
 Denotes that component is vulnerable |
| Oval Definitions |
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