CVE-2021-23840

Calls to 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. This could cause
applications to behave incorrectly or crash. OpenSSL versions 1.1.1i and
below are affected by this issue. Users of these versions should upgrade to
OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this
issue. However OpenSSL 1.0.2 is out of support and no longer receiving
public updates. Premium support customers of OpenSSL 1.0.2 should upgrade
to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j
(Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x).

Bugs

• <https://bugzilla.tianocore.org/show_bug.cgi?id=3266 (edk2)>

Notes