CVE-2018-16421 describes multiple buffer overflow vulnerabilities in OpenSC's libopensc/card-cac.c, specifically within the cac_get_serial_nr_from_CUID function, affecting versions prior to 0.19.0-rc1. An attacker with physical access to a system and able to supply a specially crafted smart card could trigger these overflows. This could lead to a denial of service (application crash) and potentially other unspecified impacts, with a CVSS v3 score of 6.6 (Medium) indicating high confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 0.18.0CPE matchmatch criteria | cpe:2.3:a:opensc_project:opensc:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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