CVE-2018-16427

opensc: Out of bounds reads handling responses from smartcards

Severity Score

4.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Various out of bounds reads when handling responses in OpenSC before 0.19.0-rc1 could be used by attackers able to supply crafted smartcards to potentially crash the opensc library using programs.

Varias lecturas fuera de límites al manejar las respuestas en OpenSC en versiones anteriores a la 0.19.0-rc1 podrían ser empleadas por los atacantes para proporcionar smartcards para provocar el cierre inesperado de la librería opensc mediante programas.

The OpenSC set of libraries and utilities provides support for working with smart cards. OpenSC focuses on cards that support cryptographic operations and enables their use for authentication, mail encryption, or digital signatures. Issues addressed include a buffer overflow vulnerability.

*Credits: N/A

CVSS Scores

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-09-03 CVE Reserved
2018-09-04 CVE Published
2024-08-05 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-125: Out-of-bounds Read

CAPEC

References (7)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html	Mailing List
https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/OpenSC/OpenSC/pull/1447/commits/8fe377e93b4b56060e5bbfb6f3142ceaeca744fa	2019-08-06
https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1	2019-08-06

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2019:2154	2019-08-06
https://access.redhat.com/security/cve/CVE-2018-16427	2019-08-06
https://bugzilla.redhat.com/show_bug.cgi?id=1628052	2019-08-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Opensc Project Search vendor "Opensc Project"		Opensc Search vendor "Opensc Project" for product "Opensc"				<= 0.18.0 Search vendor "Opensc Project" for product "Opensc" and version " <= 0.18.0"		-		Affected