CVE-2019-20792

mediumpriority · track · 27EPSS 0.007 · 51 %ileDEEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.66% (51st) EPSS
CVSS 4.6 · medium
Is it mine?
21 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-28

OpenSC before 0.20.0 has a double free in coolkey_free_private_data because coolkey_add_object in libopensc/card-coolkey.c lacks a uniqueness check.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedopensc-0:0.20.0-2.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Fixedopensc-0:0.20.0-2.el8.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Fixedopensc-0:0.20.0-2.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Fixedopensc-0:0.20.0-2.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Fixedopensc-0:0.20.0-2.el8.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Fixedopensc-0:0.20.0-2.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Fixedopensc-debuginfo-0:0.20.0-2.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Fixedopensc-debuginfo-0:0.20.0-2.el8.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Fixedopensc-debuginfo-0:0.20.0-2.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Fixedopensc-debuginfo-0:0.20.0-2.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Fixedopensc-debuginfo-0:0.20.0-2.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Fixedopensc-debugsource-0:0.20.0-2.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Fixedopensc-debugsource-0:0.20.0-2.el8.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Fixedopensc-debugsource-0:0.20.0-2.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Fixedopensc-debugsource-0:0.20.0-2.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Fixedopensc-debugsource-0:0.20.0-2.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2020:4483
  • Workaroundopensc-0:0.20.0-2.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

  • Workaroundopensc-0:0.20.0-2.el8.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

  • Workaroundopensc-0:0.20.0-2.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

  • Workaroundopensc-0:0.20.0-2.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

  • Workaroundopensc-0:0.20.0-2.el8.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

  • Workaroundopensc-0:0.20.0-2.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

  • Workaroundopensc-debuginfo-0:0.20.0-2.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

  • Workaroundopensc-debuginfo-0:0.20.0-2.el8.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

  • Workaroundopensc-debuginfo-0:0.20.0-2.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

  • Workaroundopensc-debuginfo-0:0.20.0-2.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

  • Workaroundopensc-debuginfo-0:0.20.0-2.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

  • Workaroundopensc-debugsource-0:0.20.0-2.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

  • Workaroundopensc-debugsource-0:0.20.0-2.el8.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

  • Workaroundopensc-debugsource-0:0.20.0-2.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

  • Workaroundopensc-debugsource-0:0.20.0-2.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

  • Workaroundopensc-debugsource-0:0.20.0-2.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf

    If the coolkey driver is not necessary for the configuration and system in use, it is possible to disable it by not listing it in the /etc/opensc.conf file. For example: ``` app default { card_drivers = cac, cac1, PIV-II; } ```

02

cvss

Technical severity, 0–10. One row per scoring source.

6.8
010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 3.9 · impact 6.4
v3.16.8mediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 0.9 · impact 5.9
v3.16.2mediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.16.4mediumCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · Red Hat Product Security US
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-415USprimaryCWE-416US
04

affected products (21)

Products and version ranges known to be affected.

showing 20 of 21
05

advisories (2)

Vendor and ecosystem advisories describing this.

  • RHSA-2020:4483Red Hat Security Advisory: opensc security, bug fix, and enhancement update2020-11-04csaf · redhat_csafUS

    An update for opensc is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

  • WID-SEC-W-2023-2406OpenSC: Schwachstelle ermöglicht CodeausführungDeutsch2020-04-28csaf · cert_bundDE

    Ein lokaler Angreifer kann eine Schwachstelle in OpenSC ausnutzen, um beliebigen Programmcode auszuführen.

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcert_bundnvdredhat_csafNVDCVE.orgMITRE
published 2020-04-29modified 2026-06-17
09

references (15)

External citations — patches, advisories, analysis.

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