CVE-2018-16423

Name: CVE-2018-16423
Creator: NVD / NIST
Published: 2018-09-04T00:29:00.903+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.66%

Last modified Jun 17, 2026

CVE-2018-16423 is a vulnerability of currently unknown severity. A double free when handling responses from a smartcard in sc_file_set_sec_attr in libopensc/sc.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 0.66% chance of exploitation in the next 30 days.

Description

A double free when handling responses from a smartcard in sc_file_set_sec_attr in libopensc/sc.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

0.66%

46.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-415

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/360e95d45ac4123255a4c796db96337f332160ad#diff-db0cd89ff279ad8c7b3bb780cdf2770aPatch, 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-db0cd89ff279ad8c7b3bb780cdf2770aPatch, 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

Timeline

Published: Sep 4, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-16423?

How severe is CVE-2018-16423?

Severity scoring for CVE-2018-16423 is pending analysis. The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.

How do I fix CVE-2018-16423?

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-2018-16423?

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

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Source: NVD / NIST