CVE-2021-42782 — Improper Restriction of Operations within the Bounds of a Memory Buffer in Project Opensc

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory BufferCWE-787 — Out-of-bounds Write11 documents8 sources
Severity
5.3MEDIUMNVD
EPSS
0.1%
top 74.05%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Opensc Project OpenscFedoraproject Fedora
Timeline
PublishedApr 18
Latest updateApr 9

Description

Stack buffer overflow issues were found in Opensc before version 0.22.0 in various places 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 Packages3 packages

▶NVDopensc_project/opensc< 0.22.0
▶Debianopensc_project/opensc< 0.21.0-1+deb11u1+3
▶CVEListV5opensc_project/openscopensc 0.22.0

Also affects: Fedora 33

Patches

Patch: bugzilla.redhat.com ↗Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

4
OSV
opensc vulnerabilities↗2025-03-12
▶
GHSA
GHSA-xq25-8g7f-6hc5: Stack buffer overflow issues were found in Opensc before version 0↗2022-04-19
▶
OSV
CVE-2021-42782: Stack buffer overflow issues were found in Opensc before version 0↗2022-04-18
▶
CVEList
CVE-2021-42782: Stack buffer overflow issues were found in Opensc before version 0↗2022-04-18
▶

📋Vendor Advisories

6
Ubuntu
OpenSC vulnerabilities↗2025-04-09
▶
Ubuntu
OpenSC vulnerabilities↗2025-03-12
▶
Red Hat
opensc: Stack overflow vulnerability in OpenSC smart card middleware↗2023-08-22
▶
Microsoft
Stack buffer overflow issues were found in Opensc before version 0.22.0 in various places that could potentially crash programs using the library.↗2022-04-12
▶
Red Hat
opensc: Stack buffer overflow issues in various places↗2021-02-19
▶
CVE-2021-42782 — Opensc Project Opensc vulnerability | cvebase