VulnerabilityModified
CVE-2020-36421
Because of a side channel in modular exponentiation, an RSA private key used in a secure enclave could be disclosed.
MEDIUM 5.3EPSS 1.58%
Does this matter?
Lower severity and a low EPSS score (1.58%). Track it; it rarely justifies an emergency change on its own.
Description
An issue was discovered in Arm Mbed TLS before 2.23.0. Because of a side channel in modular exponentiation, an RSA private key used in a secure enclave could be disclosed.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 1.58% probability · 74th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-203
- Affected
- arm/mbed tls · debian/debian linux
- Source
- cve@mitre.org
References
- https://bugs.gentoo.org/730752Issue Tracking, Patch, Third Party Advisory
- https://github.com/ARMmbed/mbedtls/issues/3394Exploit, Issue Tracking, Third Party Advisory
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.7Release Notes, Third Party Advisory
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.23.0Release Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlMailing List, Third Party Advisory
- https://bugs.gentoo.org/730752Issue Tracking, Patch, Third Party Advisory
- https://github.com/ARMmbed/mbedtls/issues/3394Exploit, Issue Tracking, Third Party Advisory
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.7Release Notes, Third Party Advisory
- https://github.com/ARMmbed/mbedtls/releases/tag/v2.23.0Release Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.