CVE-2020-26570
MEDIUMCVSS 5.5/10EPSS 0.39%
Last modified
CVE-2020-26570 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. The Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.
Description
The Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Opensc Project | Opensc | <= 0.20.0 |
| Fedoraproject | Fedora | 33 |
| Debian | Debian Linux | 9.0 |
References
- http://www.openwall.com/lists/oss-security/2020/11/24/4Mailing List, Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24316Third Party Advisory
- https://github.com/OpenSC/OpenSC/commit/6903aebfddc466d966c7b865fae34572bf3ed23ePatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00027.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/24/4Mailing List, Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24316Third Party Advisory
- https://github.com/OpenSC/OpenSC/commit/6903aebfddc466d966c7b865fae34572bf3ed23ePatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00027.htmlMailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-26570?
The Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file.
How severe is CVE-2020-26570?
CVE-2020-26570 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.
How do I fix CVE-2020-26570?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2020-26570?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST