CVE-2020-26571: Buffer Overflow
First published: Tue Oct 06 2020(Updated: )
The gemsafe GPK smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in sc_pkcs15emu_gemsafeGPK_init.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Opensc Project Opensc | <=0.20.0 | |
| Debian Debian Linux | =9.0 | |
| Fedoraproject Fedora | =33 |
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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=20612
- 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-2020-26571?
CVE-2020-26571 refers to a stack-based buffer overflow vulnerability in the gemsafe GPK smart card software driver in OpenSC before 0.21.0-rc1.
What is the severity of CVE-2020-26571?
The severity of CVE-2020-26571 is medium with a CVSS score of 5.5.
Which software versions are affected by CVE-2020-26571?
The affected software versions are OpenSC before 0.21.0-rc1, Debian Linux 9.0, and Fedora 33.
How can I fix CVE-2020-26571?
To fix CVE-2020-26571, update to OpenSC version 0.21.0-rc1 or later.
What are the references for CVE-2020-26571?
The references for CVE-2020-26571 are: [1] http://www.openwall.com/lists/oss-security/2020/11/24/4, [2] https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20612, [3] https://lists.debian.org/debian-lts-announce/2021/11/msg00027.html.
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