CVE-2021-42780 — Unchecked Return Value in Project Opensc

CWE-252 — Unchecked Return Value12 documents8 sources
Severity
5.3MEDIUMNVD
EPSS
0.1%
top 81.80%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Opensc Project OpenscFedoraproject FedoraRedhat Enterprise Linux
Timeline
PublishedApr 18
Latest updateApr 9

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:LExploitability: 3.9 | Impact: 1.4

Affected Packages4 packages

▶NVDopensc_project/opensc< 0.22.0
▶Debianopensc_project/opensc< 0.21.0-1+deb11u1+3
▶Ubuntuopensc_project/opensc< 0.15.0-1ubuntu1+esm2+4
▶CVEListV5opensc_project/openscopensc 0.22.0

Also affects: Fedora 33, Enterprise Linux 7.0

Patches

Patch: bugs.chromium.org ↗Patch: bugzilla.redhat.com ↗Patch: github.com ↗

🔴Vulnerability Details

6
OSV
opensc vulnerabilities↗2025-04-09
▶
OSV
opensc regression↗2025-03-28
▶
OSV
opensc vulnerabilities↗2025-03-12
▶
GHSA
GHSA-7wjg-mhwg-m2rc: A use after return issue was found in Opensc before version 0↗2022-04-19
▶
OSV
CVE-2021-42780: A use after return issue was found in Opensc before version 0↗2022-04-18
▶

📋Vendor Advisories

5
Ubuntu
OpenSC vulnerabilities↗2025-04-09
▶
Ubuntu
OpenSC vulnerabilities↗2025-03-12
▶
Microsoft
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.↗2022-04-12
▶
Red Hat
opensc: Use after return in insert_pin function↗2021-01-09
▶
Debian
CVE-2021-42780: opensc - A use after return issue was found in Opensc before version 0.22.0 in insert_pin...↗2021
▶
CVE-2021-42780 — Unchecked Return Value | cvebase