CVE-2018-16393

Name: CVE-2018-16393
Creator: NVD / NIST
Published: 2018-09-03T14:29:00.513+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.65%

Last modified Jun 17, 2026

CVE-2018-16393 is a vulnerability of currently unknown severity. Several buffer overflows when handling responses from a Gemsafe V1 Smartcard in gemsafe_get_cert_len in libopensc/pkcs15-gemsafeV1.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.. EPSS estimates a 0.65% chance of exploitation in the next 30 days.

Description

Several buffer overflows when handling responses from a Gemsafe V1 Smartcard in gemsafe_get_cert_len in libopensc/pkcs15-gemsafeV1.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.

Metrics

EPSS Probability

0.65%

46.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Opensc Project	Opensc	<= 0.18.0

References

https://access.redhat.com/errata/RHSA-2019:2154
https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160adPatch, Third Party Advisory
https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1Third 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/360e95d45ac4123255a4c796db96337f332160adPatch, Third Party Advisory
https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1Third 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

Timeline

Published: Sep 3, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-16393?

How severe is CVE-2018-16393?

Severity scoring for CVE-2018-16393 is pending analysis. The EPSS model estimates a 0.65% probability of exploitation in the next 30 days.

How do I fix CVE-2018-16393?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-16393?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST