| Description: | Issue summary: Processing a maliciously formatted PKCS12 file may lead
OpenSSL to crash leading to a potential Denial of Service attack
Impact summary: Applications loading files in the PKCS12 format from
untrusted sources might terminate abruptly. A file in PKCS12 format
can contain certificates and keys and may come from an untrusted
source. The PKCS12 specification allows certain fields to be NULL, but
OpenSSL does not correctly check for this case. This can lead to a
NULL pointer dereference that results in OpenSSL crashing. If an
application processes PKCS12 files from an untrusted source using the
OpenSSL APIs then that application will be vulnerable to this issue.
OpenSSL APIs that are vulnerable to this are: PKCS12_parse(),
PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(),
PKCS12_unpack_authsafes() and PKCS12_newpass(). We have also fixed a
similar issue in SMIME_write_PKCS7(). However since this function is
related to writing data we do not consider it security significant.
The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue.
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