Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Arm | Mbed Tls | < 2.7.17 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://bugs.gentoo.org/740108Issue TrackingPatchThird Party Advisory
- https://github.com/ARMmbed/mbedtls/issues/3340ExploitIssue TrackingThird Party Advisory
- https://github.com/ARMmbed/mbedtls/pull/3433Third Party Advisory
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8Release NotesThird Party Advisory
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0Release NotesThird Party Advisory
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17Release NotesThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlMailing ListThird Party Advisory
- https://bugs.gentoo.org/740108Issue TrackingPatchThird Party Advisory
- https://github.com/ARMmbed/mbedtls/issues/3340ExploitIssue TrackingThird Party Advisory
- https://github.com/ARMmbed/mbedtls/pull/3433Third Party Advisory
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8Release NotesThird Party Advisory
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0Release NotesThird Party Advisory
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17Release NotesThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2020-36425?
CVE-2020-36425 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 e...
How severe is CVE-2020-36425?
CVE-2020-36425 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-36425?
Check the references section above for vendor advisories and patch information. Affected products include: Arm Mbed Tls, Debian Debian Linux.