# CVE-2019-19481: opensc: The OpenSC set of libraries and utilities provides support for working with smart cards

CVE-2019-19481 is fixed in opensc on 1 platform, first by RHSA-2020:4483, released November 4, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2019-19481
- Priority: Routine
- CVSS: 4.6 (Moderate)
- EPSS: 0.0025
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 4, 2020

## Description

The OpenSC set of libraries and utilities provides support for working with smart cards. OpenSC focuses on cards that support cryptographic operations and enables their use for authentication, mail encryption, or digital signatures.  The following packages have been upgraded to a later upstream version: opensc (0.20.0). (BZ#1810660)  Security Fix(es):  * opensc: Out-of-bounds access of an ASN.1 Bitstring in decode_bit_string in libopensc/asn1.c (CVE-2019-15945)  * opensc: Out-of-bounds access of an ASN.1 Octet string in asn1_decode_entry in libopensc/asn1.c (CVE-2019-15946)  * opensc: Improper handling of buffer limits for CAC certificates (CVE-2019-19481)  * opensc: Double free in coolkey_free_private_data in libopensc/card-coolkey.c (CVE-2019-20792)  * opensc: Incorrect read operation during parsing of a SETCOS file attribute (CVE-2019-19479)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.  Additional Changes:  For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | opensc RHEL 8 | 0:0.20.0-2.el8 | [RHSA-2020:4483](https://patchblox.com/security/data/fix/linux/rhsa-2020-4483.md) | Nov 4, 2020 |
| Linux | opensc ol 8 | 0:0.20.0-2.el8 | [ELSA-2020-4483](https://patchblox.com/security/data/fix/linux/elsa-2020-4483.md) | Nov 10, 2020 |

---

Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.