CVE-2018-16423

Public Exploit

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.

References

Link	Tags
https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-db0cd89ff279ad8c7b3bb780cdf2770a	third party advisory patch
https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1	patch third party advisory release notes
https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/	third party advisory exploit
https://access.redhat.com/errata/RHSA-2019:2154	vendor advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html	mailing list

Frequently Asked Questions

What is the severity of CVE-2018-16423?: CVE-2018-16423 has been scored as a medium severity vulnerability.
How to fix CVE-2018-16423?: To fix CVE-2018-16423, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-16423 being actively exploited in the wild?: It is possible that CVE-2018-16423 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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Description

Category

CWE-415 – Double Free

References

Frequently Asked Questions