CVE-2021-42781: Buffer Overflow
First published: Thu Oct 21 2021(Updated: )
Heap buffer overflow issues were found in Opensc before version 0.22.0 in pkcs15-oberthur.c that could potentially crash programs using the library.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Opensc Project Opensc | <0.22.0 | |
| Fedoraproject Fedora | =33 | |
| Redhat Enterprise Linux | =7.0 | |
| redhat/opensc | <0.22.0 | 0.22.0 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=2016439
- https://github.com/OpenSC/OpenSC/commit/05648b06
- https://github.com/OpenSC/OpenSC/commit/17d8980c
- https://github.com/OpenSC/OpenSC/commit/40c50a3a
- https://github.com/OpenSC/OpenSC/commit/5d4daf6c
- https://github.com/OpenSC/OpenSC/commit/cae5c71f
- https://lists.debian.org/debian-lts-announce/2023/06/msg00025.html
- https://security.gentoo.org/glsa/202209-03
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30112
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31540
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32149
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32202
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32807
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2021-42781.
What is the severity level of CVE-2021-42781?
The severity level of CVE-2021-42781 is 5.3 (medium).
Which software versions are affected by CVE-2021-42781?
Versions before 0.22.0 of Opensc, Fedora 33, and Redhat Enterprise Linux 7.0 are affected by CVE-2021-42781.
What is the description of CVE-2021-42781?
CVE-2021-42781 is a heap buffer overflow issue in Opensc that could potentially crash programs using the library.
How do I fix the CVE-2021-42781 vulnerability?
To fix the CVE-2021-42781 vulnerability, you should update to version 0.22.0 of Opensc.
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