CVE-2021-34193 — HIGH (7.5)

Q: What is CVE-2021-34193?

CVE-2021-34193 is a vulnerability with a CVSS score of 7.5 (HIGH). Stack overflow vulnerability in OpenSC smart card middleware before 0.23 via crafted responses to APDUs.

Q: How severe is CVE-2021-34193?

CVE-2021-34193 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-34193?

Check the references section above for vendor advisories and patch information. Affected products include: Opensc Project Opensc.

Vulnerability Description

Stack overflow vulnerability in OpenSC smart card middleware before 0.23 via crafted responses to APDUs.

CVSS Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Opensc Project	Opensc	< 0.22.0

Related Weaknesses (CWE)

CWE-787

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27719Issue TrackingMailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28185Issue TrackingMailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28383Issue TrackingMailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28768Issue TrackingMailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843Issue TrackingMailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28855Issue TrackingMailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29912Issue TrackingMailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30112Issue TrackingMailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30800Issue TrackingMailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31448Issue TrackingMailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31540Issue TrackingMailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32149Issue TrackingMailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27719Issue TrackingMailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28185Issue TrackingMailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28383Issue TrackingMailing List

FAQ

What is CVE-2021-34193?

CVE-2021-34193 is a vulnerability with a CVSS score of 7.5 (HIGH). Stack overflow vulnerability in OpenSC smart card middleware before 0.23 via crafted responses to APDUs.

How severe is CVE-2021-34193?

CVE-2021-34193 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-34193?

Check the references section above for vendor advisories and patch information. Affected products include: Opensc Project Opensc.