CVE-2021-45451
First published: Tue Dec 21 2021(Updated: )
In Mbed TLS before 3.1.0, psa_aead_generate_nonce allows policy bypass or oracle-based decryption when the output buffer is at memory locations accessible to an untrusted application.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ARM mbed TLS | <3.1.0 | |
| Fedoraproject Fedora | =36 | |
| Fedoraproject Fedora | =37 |
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Reference Links
- https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IL66WKJGXY5AXMTFE7QDMGL3RIBD6PX5/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TALJHOYAYSUJTLN6BYGLO4YJGNZUY74W/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TALJHOYAYSUJTLN6BYGLO4YJGNZUY74W/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IL66WKJGXY5AXMTFE7QDMGL3RIBD6PX5/
Frequently Asked Questions
What is CVE-2021-45451?
CVE-2021-45451 is a vulnerability in Mbed TLS before version 3.1.0 that allows policy bypass or oracle-based decryption when the output buffer is accessible to an untrusted application.
How does CVE-2021-45451 affect ARM mbed TLS?
CVE-2021-45451 affects ARM mbed TLS versions up to, but excluding, version 3.1.0.
How does CVE-2021-45451 affect Fedora?
CVE-2021-45451 affects Fedora versions 36 and 37.
What is the severity of CVE-2021-45451?
The severity of CVE-2021-45451 is high with a CVSS score of 7.5.
Is there a fix for CVE-2021-45451?
Yes, the fix for CVE-2021-45451 is available in version 3.1.0 of Mbed TLS.
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