Medium severity · published Apr 18, 2022
CVE-2021-42781
Heap buffer overflow issues were found in Opensc before version 0.22.0 in pkcs15-oberthur.c that could potentially crash programs using the library
5.3
CVSS
2.9%
EPSS
No
On KEV
Description
Heap buffer overflow issues were found in Opensc before version 0.22.0 in pkcs15-oberthur.c 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)2.9% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
7.0 · source: NVD
FE
Fedora · Fedoraproject
33 · source: NVD
OP
Opensc · Opensc Project
before 0.22.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-42781
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-42781
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2016439
Patch
https://github.com/OpenSC/OpenSC/commit/05648b06
Patch
https://github.com/OpenSC/OpenSC/commit/17d8980c
Patch
https://github.com/OpenSC/OpenSC/commit/40c50a3a
Patch
https://github.com/OpenSC/OpenSC/commit/5d4daf6c
Patch
https://github.com/OpenSC/OpenSC/commit/cae5c71f
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