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external/mbedtls/x509_create.c: Fix CVE-2024-23775 #6712

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Issue: Integer Overflow vulnerability in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2, allows attackers to cause a denial of service (DoS) via mbedtls_x509_set_extension(). (CVE-2024-23775)
Solve: Ensure that a length of SIZE_MAX cannot be passed into mbedtls_x509_set_extension()

https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2024-01-2/#
https://github.com/Mbed-TLS/mbedtls/blob/v3.6.2/library/x509_create.c#L385

Issue: Integer Overflow vulnerability in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2, allows attackers to cause a denial of service (DoS) via mbedtls_x509_set_extension().
(CVE-2024-23775)
Solve: Ensure that a length of SIZE_MAX cannot be passed into mbedtls_x509_set_extension()

https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2024-01-2/#
https://github.com/Mbed-TLS/mbedtls/blob/v3.6.2/library/x509_create.c#L385

Signed-off-by: Jaeyong Lee <[email protected]>
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