CVE-2021-36647

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Source
https://cve.org/CVERecord?id=CVE-2021-36647
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-36647.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-36647
Downstream
Published
2023-01-17T21:15:10.880Z
Modified
2026-05-30T21:55:21.668918Z
Severity
  • 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

Use of a Broken or Risky Cryptographic Algorithm in the function mbedtlsmpiexp_mod() in lignum.c in Mbed TLS Mbed TLS all versions before 3.0.0, 2.27.0 or 2.16.11 allows attackers with access to precise enough timing and memory access information (typically an untrusted operating system attacking a secure enclave such as SGX or the TrustZone secure world) to recover the private keys used in RSA.

References

Affected packages

Git / github.com/mbed-tls/mbedtls

Affected ranges

Type
GIT
Repo
https://github.com/mbed-tls/mbedtls
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
aa1d4e097342af799ba80dfb13640efef498227c
Introduced
3f8d78411a26e833db18d9fbde0e2f0baeda87f0
Fixed
f71e2878084126737cc39083e1e15afc459bd93d
Introduced
8b3f26a5ac38d4fdccbc5c5366229f3e01dafcc0
Fixed
8df2f8e7b9c7bb9390ac74bb7bace27edca81a2b
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.16.11"
        },
        {
            "introduced": "2.17.0"
        },
        {
            "fixed": "2.27.0"
        },
        {
            "introduced": "2.28.0"
        },
        {
            "fixed": "3.0.0"
        }
    ],
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*"
}

Affected versions

Other
beta-oob-2
mbedos-release-15-11
mbedos-techcon-oob2
mbedtls-2.*
mbedtls-2.0.0
mbedtls-2.1.0
mbedtls-2.1.1
mbedtls-2.1.2
mbedtls-2.10.0
mbedtls-2.11.0
mbedtls-2.12.0
mbedtls-2.13.0
mbedtls-2.13.1
mbedtls-2.14.0
mbedtls-2.16.0
mbedtls-2.16.10
mbedtls-2.16.2
mbedtls-2.16.3
mbedtls-2.16.4
mbedtls-2.16.5
mbedtls-2.16.6
mbedtls-2.16.8
mbedtls-2.16.9
mbedtls-2.19.0
mbedtls-2.19.0d1
mbedtls-2.19.0d2
mbedtls-2.19.1
mbedtls-2.2.0
mbedtls-2.2.1
mbedtls-2.20.0
mbedtls-2.20.0d0
mbedtls-2.21.0
mbedtls-2.22.0d0
mbedtls-2.24.0
mbedtls-2.26.0
mbedtls-2.3.0
mbedtls-2.4.0
mbedtls-2.5.0
mbedtls-2.5.1
mbedtls-2.6.0
mbedtls-2.6.0-rc1
mbedtls-2.7.0
mbedtls-2.7.0-rc1
mbedtls-2.8.0
mbedtls-2.8.0-rc1
mbedtls-2.9.0
polarssl-1.*
polarssl-1.2.0
polarssl-1.2.1
polarssl-1.2.2
polarssl-1.2.4
polarssl-1.2.5
polarssl-1.2.6
polarssl-1.3.0
polarssl-1.3.0-rc0
polarssl-1.3.1
polarssl-1.3.2
polarssl-1.3.3
polarssl-1.3.4
polarssl-1.3.5
polarssl-1.3.6
polarssl-1.3.7
polarssl-1.3.8
polarssl-1.3.9
v2.*
v2.16.10
v2.16.8
v2.16.9
v2.24.0
v2.26.0
yotta-2.*
yotta-2.3.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-36647.json"