A double free when handling responses from a smartcard in sc_file_set_sec_attr in libopensc/sc.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.
Created opensc tracking bugs for this issue:
Affects: fedora-all [bug 1628021]
This issue has been addressed in the following products:
Red Hat Enterprise Linux 7
Via RHSA-2019:2154 https://access.redhat.com/errata/RHSA-2019:2154
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):