A double free when handling responses in read_file in tools/egk-tool.c (aka the eGK card tool) 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.
The product calls free() twice on the same memory address.
Link | Tags |
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https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-476b3b2a03c4eef331b4b0bfece4b063 | third party advisory patch |
https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1 | release notes third party advisory patch |
https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/ | third party advisory exploit |
https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html | mailing list |