CVE-2018-16422: Buffer Overflow
First published: Tue Sep 04 2018(Updated: )
A single byte buffer overflow when handling responses from an esteid Card in sc_pkcs15emu_esteid_init in libopensc/pkcs15-esteid.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 | |
| redhat/opensc | <0.19.0 | 0.19.0 |
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Reference Links
- https://access.redhat.com/errata/RHSA-2019:2154
- https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-d64c08c80437cf0006ada91e50f20ba0
- 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=1628017
- https://access.redhat.com/security/cve/cve-2018-16422
- https://bugzilla.redhat.com/show_bug.cgi?id=1628016
Frequently Asked Questions
What is CVE-2018-16422?
CVE-2018-16422 is a vulnerability that allows attackers to cause a denial of service or possibly have unspecified other impact by exploiting a single byte buffer overflow when handling responses from an esteid Card in OpenSC before version 0.19.0-rc1.
What is the severity of CVE-2018-16422?
The severity of CVE-2018-16422 is medium with a CVSS score of 6.6.
How can the CVE-2018-16422 vulnerability be exploited?
The vulnerability can be exploited by attackers who are able to supply crafted smartcards to the affected system.
How can I mitigate the CVE-2018-16422 vulnerability?
To mitigate the vulnerability, it is recommended to update to OpenSC version 0.19.0-rc1 or later.
Where can I find more information about CVE-2018-16422?
You can find more information about CVE-2018-16422 at the following references: [Link 1](https://access.redhat.com/errata/RHSA-2019:2154), [Link 2](https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-d64c08c80437cf0006ada91e50f20ba0), [Link 3](https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1).
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