CVE-2020-36425
First published: Mon Jul 19 2021(Updated: )
An issue was discovered in Arm Mbed TLS before 2.24.0. It incorrectly uses a revocationDate check when deciding whether to honor certificate revocation via a CRL. In some situations, an attacker can exploit this by changing the local clock.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ARM mbed TLS | <2.7.17 | |
| ARM mbed TLS | >=2.8.0<2.16.8 | |
| ARM mbed TLS | >=2.17.0<2.24.0 | |
| Debian Debian Linux | =10.0 |
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Reference Links
- https://bugs.gentoo.org/740108
- https://github.com/ARMmbed/mbedtls/issues/3340
- https://github.com/ARMmbed/mbedtls/pull/3433
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17
- https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2020-36425.
What is the severity of CVE-2020-36425?
The severity of CVE-2020-36425 is medium with a CVSS score of 5.3.
What software is affected by CVE-2020-36425?
The ARM mbed TLS versions up to 2.16.8, 2.17.0 to 2.24.0, and Debian Debian Linux 10.0 are affected by CVE-2020-36425.
What is the issue with Arm Mbed TLS before version 2.24.0?
Arm Mbed TLS before version 2.24.0 incorrectly uses a revocationDate check when deciding whether to honor certificate revocation via a CRL, which can be exploited by changing the local clock.
Are there any available fixes for CVE-2020-36425?
Yes, upgrading to Arm Mbed TLS version 2.24.0 or later resolves CVE-2020-36425.
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- agent/severity
- agent/weakness
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- vendor/arm
- canonical/arm mbed tls
- version/arm mbed tls/2.8.0
- version/arm mbed tls/2.17.0
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0