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No exploitation reportedFix available

CVE-2018-16420

No exploitation reported by the sources we read.

  • Published2018-09-04
  • WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Several buffer overflows when handling responses from an ePass 2003 Card in decrypt_response in libopensc/card-epass2003.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.

Timeline

dates in UTC
  1. 2018-09-0400:29CVE publishedNVD

Versions per branch

NVD
Opensc project opensc
BranchAffectedFixed in
0.18≤ 0.18.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • openscUbuntu:Pro:18.04:LTSall versions · no fixed version listed
  • openscUbuntu:Pro:16.04:LTSall versions · no fixed version listed
  • openscSUSE:Linux Enterprise Server for SAP Applications 12 SP4all versions · fixed in 0.13.0-3.3.2
  • openscSUSE:Linux Enterprise Server for SAP Applications 12 SP3all versions · fixed in 0.13.0-3.3.2
  • openscSUSE:Linux Enterprise Server 12 SP4all versions · fixed in 0.13.0-3.3.2
  • openscSUSE:Linux Enterprise Server 12 SP3all versions · fixed in 0.13.0-3.3.2
  • openscSUSE:Linux Enterprise Module for Basesystem 15all versions · fixed in 0.18.0-3.8.1
  • openscSUSE:Linux Enterprise Desktop 12 SP4all versions · fixed in 0.13.0-3.3.2

28 more package ranges on OSV.dev

Vendor advisories

  • CVE-2018-16420 Red Hat Product Security28 products fixed

    opensc: Buffer overflows handling responses from ePass 2003 Cards in card-epass2003.c:decrypt_response()

  • RHSA-2019:2154 Red Hat Product Security28 products fixed

    Red Hat Security Advisory: opensc security, bug fix, and enhancement update

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2019:2154 · 28 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2018-09-04
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-w4mm-38jx-q774

Frequently asked questions

What is CVE-2018-16420?

Several buffer overflows when handling responses from an ePass 2003 Card in decrypt_response in libopensc/card-epass2003.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.

Is CVE-2018-16420 actively exploited?

Active exploitation of CVE-2018-16420 has not been confirmed. Its EPSS score was 0.7% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-16420?

CVE-2018-16420 has a CVSS v3 base score of 6.6 (MEDIUM severity), with vector string CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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