CVE-2018-16421

Several buffer overflows when handling responses from a CAC Card in cac_get_serial_nr_from_CUID 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.

• CWE-119

• https://access.redhat.com/errata/RHSA-2019:2154
• https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-848b13147a344ba2c6361d91ca77feb1Patch, Third Party Advisory
• https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1Patch, Release Notes, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html
• https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/Exploit, Third Party Advisory
• https://access.redhat.com/errata/RHSA-2019:2154
• https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-848b13147a344ba2c6361d91ca77feb1Patch, Third Party Advisory
• https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1Patch, Release Notes, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html
• https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/Exploit, Third Party Advisory

Published

Sep 4, 2018

Last Modified

Jun 17, 2026

Status

Modified

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