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6.6
MEDIUM CVSS 3.0
CVE-2018-16421
OpenSC CAC Card Buffer Overflow
Description

Several buffer overflows when handling responses from a CAC Card in cac_get_serial_nr_from_CUID in libopensc/card-cac.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.

INFO

Published Date :

Sept. 4, 2018, 12:29 a.m.

Last Modified :

Nov. 21, 2024, 3:52 a.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2018-16421 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Opensc-project opensc
1 Opensc_project opensc
: Total Affected Vendor : 2 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.0 MEDIUM [email protected]
Solution
An OpenSC vulnerability allows for a buffer overflow that can lead to a denial of service or possibly other impact.
  • Update the OpenSC package.
  • Follow vendor-specific instructions for updating the package.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-16421.

URL Resource
https://access.redhat.com/errata/RHSA-2019:2154
https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-848b13147a344ba2c6361d91ca77feb1 Patch Third Party Advisory
https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1 Patch Release Notes Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html
https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/ Exploit Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2154
https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-848b13147a344ba2c6361d91ca77feb1 Patch Third Party Advisory
https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1 Patch Release Notes Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html
https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/ Exploit Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-16421 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-16421 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-100: Overflow Buffers Overflow Buffers CAPEC-123: Buffer Manipulation Buffer Manipulation

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-16421 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2018-16421 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:2154
    Added Reference https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-848b13147a344ba2c6361d91ca77feb1
    Added Reference https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1
    Added Reference https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html
    Added Reference https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Sep. 11, 2019

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 06, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:2154 [No Types Assigned]
  • Initial Analysis by [email protected]

    Nov. 05, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3 AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-848b13147a344ba2c6361d91ca77feb1 No Types Assigned https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-848b13147a344ba2c6361d91ca77feb1 Patch, Third Party Advisory
    Changed Reference Type https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/ No Types Assigned https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/ Exploit, Third Party Advisory
    Changed Reference Type https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1 No Types Assigned https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1 Patch, Release Notes, Third Party Advisory
    Added CWE CWE-119
    Added CPE Configuration OR *cpe:2.3:a:opensc_project:opensc:*:*:*:*:*:*:*:* versions up to (including) 0.18.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.6
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 4.6
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.18 }} -0.02%

score

0.39736

percentile