Medium severity6.6NVD Advisory· Published Sep 4, 2018· Updated Jun 17, 2026
CVE-2018-16421
CVE-2018-16421
Description
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- osv-coords2 versionspkg:rpm/opensuse/opensc&distro=openSUSE%20Tumbleweedpkg:rpm/suse/opensc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015
< 0.21.0-2.2+ 1 more
- (no CPE)range: < 0.21.0-2.2
- (no CPE)range: < 0.18.0-3.8.1
Patches
Vulnerability mechanics
References
5- github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160adnvdPatchThird Party Advisory
- github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1nvdPatchRelease NotesThird Party Advisory
- www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/nvdExploitThird Party Advisory
- access.redhat.com/errata/RHSA-2019:2154nvd
- lists.debian.org/debian-lts-announce/2019/09/msg00009.htmlnvd
News mentions
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