CVE-2020-36421
published 2021-07-19CVE-2020-36421: 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…
PriorityP427medium5.3CVSS 3.1
AVNACLPRNUINSUCLINAN
EPSS
1.58%
72.5th percentile
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.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| arm | mbed_tls | < 2.16.7 | 2.16.7 |
| arm | mbed_tls | >= 2.17.0 < 2.23.0 | 2.23.0 |
| debian | debian_linux | — | — |
| debian | mbedtls | < mbedtls 2.16.9-0.1 (bookworm) | mbedtls 2.16.9-0.1 (bookworm) |
| mbed | mbedtls | >= 0 < 2.16.9-0.1 | 2.16.9-0.1 |
| mbed | mbedtls | >= 0 < 2.16.9-0.1 | 2.16.9-0.1 |
| mbed | mbedtls | >= 0 < 2.16.9-0.1 | 2.16.9-0.1 |
| mbed | mbedtls | >= 0 < 2.16.9-0.1 | 2.16.9-0.1 |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
osv5.3MEDIUM
vendor_debian5.3MEDIUM
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GHSA
GHSA-4h9j-8g4q-fcfq: An issue was discovered in Arm Mbed TLS before 2
ghsa_unreviewed·2022-05-24
CVE-2020-36421 [MEDIUM] CWE-203 GHSA-4h9j-8g4q-fcfq: An issue was discovered in Arm Mbed TLS before 2
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.
OSV
CVE-2020-36421: An issue was discovered in Arm Mbed TLS before 2
osv·2021-07-19·CVSS 5.3
CVE-2020-36421 [MEDIUM] CVE-2020-36421: An issue was discovered in Arm Mbed TLS before 2
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.
Debian
CVE-2020-36421: mbedtls - An issue was discovered in Arm Mbed TLS before 2.23.0. Because of a side channel...
vendor_debian·2020·CVSS 5.3
CVE-2020-36421 [MEDIUM] CVE-2020-36421: mbedtls - An issue was discovered in Arm Mbed TLS before 2.23.0. Because of a side channel...
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.
Scope: local
bookworm: resolved (fixed in 2.16.9-0.1)
bullseye: resolved (fixed in 2.16.9-0.1)
forky: resolved (fixed in 2.16.9-0.1)
sid: resolved (fixed in 2.16.9-0.1)
trixie: resolved (fixed in 2.16.9-0.1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugs.gentoo.org/730752https://github.com/ARMmbed/mbedtls/issues/3394https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.7https://github.com/ARMmbed/mbedtls/releases/tag/v2.23.0https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlhttps://bugs.gentoo.org/730752https://github.com/ARMmbed/mbedtls/issues/3394https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.7https://github.com/ARMmbed/mbedtls/releases/tag/v2.23.0https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html
2021-07-19
Published