CVE-2022-3786 A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking
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 and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| OpenSSL 3.0 | 3.0.0 → < 3.0.7 | 3.0.7 |
| Calibre ICE 2022.4 | 2022.4 → < 2023.1 | 2023.1 |
| Mcenter 5.2 | 5.2.1 → < 5.3.0 | 5.3.0 |
| SCALANCE X204RNA (HSR) 3.2 | 3.2.7 → < 3.2.8 | 3.2.8 |
| SCALANCE X204RNA (PRP) 3.2 | 3.2.7 → < 3.2.8 | 3.2.8 |
| SCALANCE X204RNA EEC (HSR) 3.2 | 3.2.7 → < 3.2.8 | 3.2.8 |
| SCALANCE X204RNA EEC (PRP) 3.2 | 3.2.7 → < 3.2.8 | 3.2.8 |
| SCALANCE X204RNA EEC (PRP/HSR) 3.2 | 3.2.7 → < 3.2.8 | 3.2.8 |
| SICAM GridPass 1.80 | 1.80 → < 2.20 | 2.20 |
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| Product | Affected versions | Fixed in |
|---|---|---|
| SIMATIC RTLS Locating Manager 2.13 | 2.13.0.0 → < 2.13.0.3 | 2.13.0.3 |
References
- OpenSSL Advisory www.openssl.org
- 3.0.7 git commit git.openssl.org
Timeline
- Published
- Last modified