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

CVE-2018-16420 has a CVSS 3.0 base score of 6.6 (Medium). CVSS vector: CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.7%.

Is there a public PoC exploit available for CVE-2018-16420?

Yes, a public proof-of-concept exploit is available for CVE-2018-16420. Prioritise patching immediately. EPSS: 0.7%.

Is there a patch available for CVE-2018-16420?

Yes, a patch is available for CVE-2018-16420. Update the affected software to the latest version immediately.

Opensc CVE-2018-16420

MEDIUM

Buffer Overflow (CWE-119)

2018-09-04 cve@mitre.org

Denial Of Service Buffer Overflow Opensc

6.6

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

6.6 MEDIUM

AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Sep 04, 2018 - 00:29 nvd

MEDIUM 6.6

DescriptionNVD

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.

AnalysisAI

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. Rated medium severity (CVSS 6.6), this vulnerability is low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. 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 include: Opensc Project Opensc. Version information: before 0.19.0.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.