CVE-2018-16423: Double Free
First published: Tue Sep 04 2018(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Opensc Project Opensc | <=0.18.0 |
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Reference Links
- https://access.redhat.com/errata/RHSA-2019:2154
- https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-db0cd89ff279ad8c7b3bb780cdf2770a
- https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1
- https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html
- https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1628021
- https://access.redhat.com/security/cve/cve-2018-16423
- https://bugzilla.redhat.com/show_bug.cgi?id=1628020
Frequently Asked Questions
What is CVE-2018-16423?
CVE-2018-16423 is a vulnerability in OpenSC, where a double free when handling responses from a smartcard could be exploited by attackers to cause a denial of service or other impact.
What is the severity of CVE-2018-16423?
CVE-2018-16423 has a severity of medium with a CVSS score of 6.6.
How can this vulnerability impact me?
This vulnerability can lead to a denial of service (application crash) or potentially have unspecified other impacts.
Which software versions are affected by CVE-2018-16423?
OpenSC versions up to and including 0.18.0 are affected by CVE-2018-16423.
How do I fix CVE-2018-16423?
To fix CVE-2018-16423, you should upgrade to OpenSC version 0.19.0 or later.
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