What’s Vulnerable › Vulnerabilities

CVE-2018-16420

• Severity: medium (CVSS 6.6 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-09-04 · updated 2026-06-17
• Weakness: CWE-119

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.

Affected products

• OpenSC: through 0.18.0

References

• https://access.redhat.com/errata/RHSA-2019:2154
• https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-b36536074d13447fbbec061e0e64d15d
• 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://access.redhat.com/errata/RHSA-2019:2154
• https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-b36536074d13447fbbec061e0e64d15d
• 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/

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