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High severity7.5NVD Advisory· Published Nov 1, 2022· Updated Apr 14, 2026

CVE-2022-3602

CVE-2022-3602

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 the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible. 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).

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
openssl-srccrates.io
>= 300.0.0, < 300.0.11300.0.11

Affected products

9
  • NetApp/Clustered Data Ontap
    cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
  • Node.js/Node.js3 versions
    cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*+ 2 more
    • cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*range: >=18.0.0,<18.11.0
    • cpe:2.3:a:nodejs:node.js:18.12.0:*:*:*:lts:*:*:*
    • cpe:2.3:a:nodejs:node.js:19.0.0:*:*:*:-:*:*:*
  • OpenSSL Project/OpenSSL
    cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
    Range: >=3.0.0,<3.0.7
  • Fedoraproject/Fedora4 versions
    cpe:2.3:o:fedoraproject:fedora:26:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:o:fedoraproject:fedora:26:*:*:*:*:*:*:*
    • cpe:2.3:o:fedoraproject:fedora:27:*:*:*:*:*:*:*
    • cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
    • cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

Patches

4
8c1dd95f3cc5
https://github.com/nodejs/nodevia osv
19cc035b6c6f
https://github.com/openssl/opensslvia osv
4a31c14f31e1

Bump to OpenSSL 3.0.7

https://github.com/alexcrichton/openssl-src-rsSteven FacklerNov 1, 2022via ghsa
commit
2 files changed · +2 −2
  • Cargo.toml+1 −1 modified
    @@ -1,6 +1,6 @@
 [package]
 name = "openssl-src"
-version = "300.0.10+3.0.6"
+version = "300.0.11+3.0.7"
 authors = ["Alex Crichton <alex@alexcrichton.com>"]
 license = "MIT/Apache-2.0"
 readme = "README.md"
  • openssl+1 −1 modified
    @@ -1 +1 @@
-Subproject commit 75a6bc17f32505421a78476a972d4d9b74f303b6
+Subproject commit 19cc035b6c6f2283573d29c7ea7f7d675cf750ce
fe3b639dc19b

Fix CVE-2022-3602 in punycode decoder.

https://github.com/openssl/opensslPauliOct 26, 2022via ghsa
commit
1 file changed · +1 −1
  • crypto/punycode.c+1 −1 modified
    @@ -181,7 +181,7 @@ int ossl_punycode_decode(const char *pEncoded, const size_t enc_len,
         n = n + i / (written_out + 1);
         i %= (written_out + 1);
 
-        if (written_out > max_out)
+        if (written_out >= max_out)
             return 0;
 
         memmove(pDecoded + i + 1, pDecoded + i,

Vulnerability mechanics

Generated by null/stub on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.

References

52

News mentions

0

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