Vulnerability · Published Aug 22, 2023 · Assigned by mitre
CVE-2021-34193
High 7.5
In plain English
A high-severity security flaw in the opensc package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.4%top 27.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Stack overflow vulnerability in OpenSC smart card middleware before 0.23 via crafted responses to APDUs.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | opensc | 0.22.0-1 | DEBIAN-CVE-2021-34193 |
| Debian:13 | opensc | 0.22.0-1 | DEBIAN-CVE-2021-34193 |
| Debian:14 | opensc | 0.22.0-1 | DEBIAN-CVE-2021-34193 |
Affected products (as reported)
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27719
- 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=28768
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28855
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32149
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28185
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29912
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31540
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28383
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31448
- https://lists.debian.org/debian-lts-announce/2024/12/msg00026.html