CVE-2020-26570: Buffer Overflow
First published: Tue Oct 06 2020(Updated: )
The Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Opensc Project Opensc | <=0.20.0 | |
| Fedoraproject Fedora | =33 | |
| Debian Debian Linux | =9.0 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2020/11/24/4
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24316
- https://github.com/OpenSC/OpenSC/commit/6903aebfddc466d966c7b865fae34572bf3ed23e
- https://lists.debian.org/debian-lts-announce/2021/11/msg00027.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EXOHFDMNMO6IDECAGUTB3SJGAGXVRT6S/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EXOHFDMNMO6IDECAGUTB3SJGAGXVRT6S/
Frequently Asked Questions
What is CVE-2020-26570?
CVE-2020-26570 is a vulnerability in the Oberthur smart card software driver in OpenSC before version 0.21.0-rc1, which allows for a heap-based buffer overflow in sc_oberthur_read_file.
How severe is CVE-2020-26570?
CVE-2020-26570 has a severity rating of 5.5 (Medium).
What software is affected by CVE-2020-26570?
OpenSC versions up to and including 0.20.0, Fedora 33, and Debian Linux 9.0 are affected by CVE-2020-26570.
How can I fix CVE-2020-26570?
To fix CVE-2020-26570, update OpenSC to version 0.21.0-rc1 or later.
Are there any references available for CVE-2020-26570?
Yes, you can find references for CVE-2020-26570 at the following links: http://www.openwall.com/lists/oss-security/2020/11/24/4, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24316, https://github.com/OpenSC/OpenSC/commit/6903aebfddc466d966c7b865fae34572bf3ed23e
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