CVE-2021-34193

high

Description

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

References

https://lists.debian.org/debian-lts-announce/2024/12/msg00026.html

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32149

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31540

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31448

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30800

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30112

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29912

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28855

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28768

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28383

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28185

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27719

Details

Source: Mitre, NVD

Published: 2023-08-22

Updated: 2025-11-03

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

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

Severity: High

EPSS

EPSS: 0.00489