CVE-2020-9433 — CRITICAL (9.1)

Vulnerability Description

openssl_x509_check_email in lua-openssl 0.7.7-1 mishandles X.509 certificate validation because it uses lua_pushboolean for certain non-boolean return values.

CVSS Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Lua-Openssl Project	Lua-Openssl	0.7.7-1

Related Weaknesses (CWE)

CWE-295

References

https://github.com/zhaozg/lua-openssl/commit/a6dc186dd4b6b9e329a93cca3e7e3cfccfdPatchThird Party Advisory
https://github.com/zhaozg/lua-openssl/commit/a6dc186dd4b6b9e329a93cca3e7e3cfccfdPatchThird Party Advisory

FAQ

What is CVE-2020-9433?

CVE-2020-9433 is a vulnerability with a CVSS score of 9.1 (CRITICAL). openssl_x509_check_email in lua-openssl 0.7.7-1 mishandles X.509 certificate validation because it uses lua_pushboolean for certain non-boolean return values.

How severe is CVE-2020-9433?

CVE-2020-9433 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2020-9433?

Check the references section above for vendor advisories and patch information. Affected products include: Lua-Openssl Project Lua-Openssl.