Buffer overflow in Opensc Project
CVE-2018-16393
Several buffer overflows when handling responses from a Gemsafe V1 Smartcard in gemsafe_get_cert_len in libopensc/pkcs15-gemsafeV1.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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (50.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1 (Third Party Advisory)
- github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad (Patch, Third Party Advisory)
- www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/ (Exploit, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:2154 (vendor-advisory)
- lists.debian.org/debian-lts-announce/2019/09/msg00009.html (mailing-list)
Frequently asked questions
- What is CVE-2018-16393?
- CVE-2018-16393 is a medium-severity vulnerability in Opensc Project, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.8/10. Published 2018-09-03.
- How severe is CVE-2018-16393?
- Medium severity. CVSS v3 base score is 6.8 out of 10.
- Is CVE-2018-16393 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.