Heap Use After Free Vulnerability in OpenSC Software
CVE-2021-42779

5.3MEDIUM

Key Information:

Vendor

Opensc Project

Status
Opensc
Vendor
CVE Published:
18 April 2022

What is CVE-2021-42779?

A vulnerability exists in OpenSC prior to version 0.22.0, where a heap use after free condition was identified in the 'sc_file_valid' function. This flaw may allow attackers to exploit the incorrect handling of memory, potentially leading to unpredictable behavior and system instability. Users are recommended to update their software to mitigate any associated risks.

Affected Version(s)

opensc opensc 0.22.0

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843
https://bugzilla.redhat.com/show_bug.cgi?id=2016086
https://github.com/OpenSC/OpenSC/commit/1db88374

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.