| Package | Affected versions | Patched versions |
|---|---|---|
| openssl | ≥ 1.0.2b, ≤ 1.0.2n≥ 1.1.0, ≤ 1.1.0g |
Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n).
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