Crypto++ (aka cryptopp and libcrypto++) 5.6.4 contained a bug in its ASN.1
BER decoding routine. The library will allocate a memory block based on the
length field of the ASN.1 object. If there is not enough content octets in
the ASN.1 object, then the function will fail and the memory block will be
zeroed even if its unused. There is a noticeable delay during the wipe for
a large allocation.
Upstream:released (5.6.4-5)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was needed)
Ubuntu 14.04 ESM (Trusty Tahr):DNE (trusty was released [5.6.1-6+deb8u3build0.14.04.1])
Ubuntu 16.04 LTS (Xenial Xerus):released (5.6.1-9ubuntu0.1)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (5.6.4-5)
More Information

Updated: 2019-12-05 18:46:51 UTC (commit dd38ff22974aae499eb50644b9d5a2817483cbdb)