CVE-2021-42780: A use after return issue was found in Opensc before version 0.22.0 in insert_pin function that could potentially crash programs using the library

Medium severity · published Apr 18, 2022

CVE-2021-42780

A use after return issue was found in Opensc before version 0.22.0 in insert_pin function that could potentially crash programs using the library

5.3

CVSS

2.2%

EPSS

On KEV

Description

A use after return issue was found in Opensc before version 0.22.0 in insert_pin function that could potentially crash programs using the library.

CVSS vector

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

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

None

Integrity

None

Availability

Low

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)2.2% · higher than 82% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Enterprise Linux · Redhat

7.0 · source: NVD

Fedora · Fedoraproject

33 · source: NVD

Opensc · Opensc Project

before 0.22.0 · source: NVD

Affected product

Fedora

Fedoraproject

All Fedora CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2021-42780

CVE.org

https://www.cve.org/CVERecord?id=CVE-2021-42780

Issue Tracking

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28383

Issue Tracking

https://bugzilla.redhat.com/show_bug.cgi?id=2016139

Patch

https://github.com/OpenSC/OpenSC/commit/5df913b7

lists.debian.org

https://lists.debian.org/debian-lts-announce/2023/06/msg00025.html

Third Party Advisory

https://security.gentoo.org/glsa/202209-03

lists.debian.org

https://lists.debian.org/debian-lts-announce/2024/12/msg00026.html