Vulnerability · Published Oct 6, 2020 · Assigned by mitre
CVE-2020-26572
Medium 5.5
In plain English
A medium-severity security flaw in the opensc package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.4%top 67.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The TCOS smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in tcos_decipher.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | opensc | 0.20.0-4.el8 | ALSA-2021:1600 |
| Alpine:v3.20 | opensc | 0.21.0-r0 | ALPINE-CVE-2020-26572 |
| Alpine:v3.21 | opensc | 0.21.0-r0 | ALPINE-CVE-2020-26572 |
| Alpine:v3.22 | opensc | 0.21.0-r0 | ALPINE-CVE-2020-26572 |
| Alpine:v3.23 | opensc | 0.21.0-r0 | ALPINE-CVE-2020-26572 |
| Alpine:v3.24 | opensc | 0.21.0-r0 | ALPINE-CVE-2020-26572 |
| Debian:12 | opensc | 0.21.0-1 | DEBIAN-CVE-2020-26572 |
| Debian:13 | opensc | 0.21.0-1 | DEBIAN-CVE-2020-26572 |
| Debian:14 | opensc | 0.21.0-1 | DEBIAN-CVE-2020-26572 |
| Rocky Linux:8 | opensc | 0:0.20.0-4.el8 | RLSA-2021:1600 |
Affected products (as reported)
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22967 x_refsource_MISC
- https://github.com/OpenSC/OpenSC/commit/9d294de90d1cc66956389856e60b6944b27b4817 x_refsource_MISC
- [oss-security] 20201124 OpenSC 0.21.0 released mailing-list, x_refsource_MLIST
- FEDORA-2020-7c80831ffe vendor-advisory, x_refsource_FEDORA
- [debian-lts-announce] 20211129 [SECURITY] [DLA 2832-1] opensc security update mailing-list, x_refsource_MLIST