CVE-2019-15945

Name: CVE-2019-15945
Creator: NVD / NIST
Published: 2019-09-05T17:15:11.873+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.4/10EPSS 0.44%

Last modified Jun 17, 2026

CVE-2019-15945 is a medium-severity vulnerability rated 6.4/10 on the CVSS scale. OpenSC before 0.20.0-rc1 has an out-of-bounds access of an ASN.1 Bitstring in decode_bit_string in libopensc/asn1.c.. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

OpenSC before 0.20.0-rc1 has an out-of-bounds access of an ASN.1 Bitstring in decode_bit_string in libopensc/asn1.c.

Metrics

CVSS 3.1

6.4/10

CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.44%

35.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Opensc Project	Opensc	<= 0.19.0
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Fedoraproject	Fedora	31

References

http://www.openwall.com/lists/oss-security/2019/12/29/1Mailing List, Release Notes, Third Party Advisory
https://github.com/OpenSC/OpenSC/commit/412a6142c27a5973c61ba540e33cdc22d5608e68Patch, Third Party Advisory
https://github.com/OpenSC/OpenSC/compare/f1691fc...12218d4Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00009.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/11/msg00027.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NDSQLMZZYBHO5X3BK7D6E7E6NZIMZDI5/
http://www.openwall.com/lists/oss-security/2019/12/29/1Mailing List, Release Notes, Third Party Advisory
https://github.com/OpenSC/OpenSC/commit/412a6142c27a5973c61ba540e33cdc22d5608e68Patch, Third Party Advisory
https://github.com/OpenSC/OpenSC/compare/f1691fc...12218d4Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00009.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/11/msg00027.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NDSQLMZZYBHO5X3BK7D6E7E6NZIMZDI5/

Timeline

Published: Sep 5, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-15945?

OpenSC before 0.20.0-rc1 has an out-of-bounds access of an ASN.1 Bitstring in decode_bit_string in libopensc/asn1.c.

How severe is CVE-2019-15945?

CVE-2019-15945 has a CVSS score of 6.4/10 (MEDIUM severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2019-15945?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-15945?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST