CVE-2018-16421: Improper Restriction of Operations within the Bounds of a Memory Buffer

Several buffer overflows when handling responses from a CAC Card in cacgetserialnrfromCUID in libopensc/card-cac.c in OpenSC before 0.19.0-rc1 could be used by attackers able to supply crafted smartcards to cause a denial of service application crash or possibly have unspecified other impact...