482c9ff289
This fixes 4 security vulnerabilities/bugs: - CVE-2021-2839 - SSLv2 vulnerability. Openssl 1.1.1 does not support SSLv2, but the affected functions still exist. Considered just a bug. - CVE-2021-2840 - calls EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. - CVE-2021-2841 - The X509_issuer_and_serial_hash() function attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it was failing to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. - Fixed SRP_Calc_client_key so that it runs in constant time. This could be exploited in a side channel attack to recover the password. The 3 CVEs above are currently awaiting analysis. Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com> |
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| Makefile | ||