cvelist/2020/10xxx/CVE-2020-10932.json
2022-12-27 00:01:00 +00:00

88 lines
4.0 KiB
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{
"data_version": "4.0",
"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2020-10932",
"ASSIGNER": "cve@mitre.org",
"STATE": "PUBLIC"
},
"description": {
"description_data": [
{
"lang": "eng",
"value": "An issue was discovered in Arm Mbed TLS before 2.16.6 and 2.7.x before 2.7.15. An attacker that can get precise enough side-channel measurements can recover the long-term ECDSA private key by (1) reconstructing the projective coordinate of the result of scalar multiplication by exploiting side channels in the conversion to affine coordinates; (2) using an attack described by Naccache, Smart, and Stern in 2003 to recover a few bits of the ephemeral scalar from those projective coordinates via several measurements; and (3) using a lattice attack to get from there to the long-term ECDSA private key used for the signatures. Typically an attacker would have sufficient access when attacking an SGX enclave and controlling the untrusted OS."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"affects": {
"vendor": {
"vendor_data": [
{
"vendor_name": "n/a",
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a",
"version_affected": "?"
}
]
}
}
]
}
}
]
}
},
"references": {
"reference_data": [
{
"url": "https://tls.mbed.org/tech-updates/security-advisories",
"refsource": "MISC",
"name": "https://tls.mbed.org/tech-updates/security-advisories"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html",
"refsource": "MISC",
"name": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"
},
{
"url": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-04",
"refsource": "MISC",
"name": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-04"
},
{
"url": "https://tls.mbed.org/tech-updates/releases/mbedtls-2.16.6-and-2.7.15-released",
"refsource": "MISC",
"name": "https://tls.mbed.org/tech-updates/releases/mbedtls-2.16.6-and-2.7.15-released"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCWN5HIF4CJ2LZTOMEBJ7Q4IMMV7ZU2V/",
"refsource": "MISC",
"name": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCWN5HIF4CJ2LZTOMEBJ7Q4IMMV7ZU2V/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNOS2IIBH5WNJXZUV546PY7666DE7Y3L/",
"refsource": "MISC",
"name": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNOS2IIBH5WNJXZUV546PY7666DE7Y3L/"
}
]
}
}