CVE-2021-34193
Publication date 22 August 2023
Last updated 25 August 2025
Ubuntu priority
Description
Stack overflow vulnerability in OpenSC smart card middleware before 0.23 via crafted responses to APDUs.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| opensc | ||
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Not affected
|
|
| 14.04 LTS trusty | Ignored end of standard support |
Notes
octagalland
According to the discussion at https://github.com/OpenSC/OpenSC/issues/2841, this CVE is a duplicate of the following CVEs: CVE-2021-42778, CVE-2021-42779, CVE-2021-42780, CVE-2021-42781, and CVE-2021-42782.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
7.5 · High
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
Other references
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28768
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29912
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30800
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28185
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28383
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27719
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32149
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30112
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31448
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31540
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28855
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843
- https://www.cve.org/CVERecord?id=CVE-2021-34193
- https://github.com/OpenSC/OpenSC/issues/2841