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Fencer Vulns
high 7.5

CVE-2019-6502 json

sc_context_create in ctx.c in libopensc in OpenSC 0.19.0 has a memory leak, as demonstrated by a call from eidenv.

published 2019-01-22 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-16061

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

sc_context_create in ctx.c in libopensc in OpenSC 0.19.0 has a memory leak, as demonstrated by a call from eidenv.

Patch / fix

  • opensc Debian 14, Debian 13, Debian 12 0.20.0-1

debian advisories DEBIAN-CVE-2019-6502

  • opensc SLE Module for Basesystem 15 SP3, SLE Micro 5.2, SLE Micro 5.1 +2 more 0.19.0-150100.3.19.1
  • opensc SLES for SAP 15, SLES 15-LTSS, SLE High Performance Computing 15-LTSS +1 more 0.18.0-150000.3.23.1
  • opensc SLES for SAP 12 SP5, SLES 12 SP5 0.13.0-3.6.27

suse advisories SUSE-SU-2022:4196-1SUSE-SU-2022:1041-1SUSE-SU-2020:3133-1

  • opensc openSUSE Tumbleweed 0.21.0-2.2

opensuse advisories openSUSE-SU-2024:11123-1

  • opensc Alpine 3.24, Alpine 3.23, Alpine 3.22 +11 more 0.20.0-r0

alpine advisories ALPINE-CVE-2019-6502

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • opensc Arch Linux 0.20.0-1

arch linux advisories AVG-1106

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-6502 updated cvss 0.0

opensc: memory leak in sc_context_create in ctx.c in libopensc

  • Red Hat Enterprise Linux 7 opensc Red Hat Enterprise Linux 8 opensc
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.20% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/OpenSC/OpenSC/issues/1586 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.