CVE-2018-16393: Buffer Overflow
First published: Mon Sep 03 2018(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/opensc | <0.19.0 | 0.19.0 |
| Opensc Project Opensc | <=0.18.0 |
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Reference Links
- https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/
- https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1628007
- https://access.redhat.com/errata/RHSA-2019:2154
- https://access.redhat.com/security/cve/cve-2018-16393
- https://bugzilla.redhat.com/show_bug.cgi?id=1628006
- https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1
- https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html
Frequently Asked Questions
What is CVE-2018-16393?
CVE-2018-16393 is a vulnerability that involves several buffer overflows when handling responses from a Gemsafe V1 Smartcard in OpenSC before version 0.19.0-rc1.
How can this vulnerability be exploited?
Attackers can exploit this vulnerability by supplying crafted smartcards, which could cause a denial of service (application crash) or potentially have unspecified impacts.
What is the severity of CVE-2018-16393?
The severity of CVE-2018-16393 is medium, with a score of 6.8.
How do I fix CVE-2018-16393?
To fix CVE-2018-16393, you should update to OpenSC version 0.19.0 or later.
Where can I find more information about CVE-2018-16393?
You can find more information about CVE-2018-16393 in the Red Hat advisory (RHSA-2019:2154) and the OpenSC release notes.
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