Files
vuln-cve/data/2021/4xxx/CVE-2021-4239.json
T

156 lines
6.3 KiB
JSON

{
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"cveMetadata": {
"cveId": "CVE-2021-4239",
"assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"state": "PUBLISHED",
"assignerShortName": "Go",
"dateReserved": "2022-07-29T20:06:51.345Z",
"datePublished": "2022-12-27T21:13:53.590Z",
"dateUpdated": "2025-04-14T16:59:43.688Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go",
"dateUpdated": "2023-06-12T19:04:19.549Z"
},
"title": "Weak encryption and denial of service in github.com/flynn/noise",
"descriptions": [
{
"lang": "en",
"value": "The Noise protocol implementation suffers from weakened cryptographic security after encrypting 2^64 messages, and a potential denial of service attack. After 2^64 (~18.4 quintillion) messages are encrypted with the Encrypt function, the nonce counter will wrap around, causing multiple messages to be encrypted with the same key and nonce. In a separate issue, the Decrypt function increments the nonce state even when it fails to decrypt a message. If an attacker can provide an invalid input to the Decrypt function, this will cause the nonce state to desynchronize between the peers, resulting in a failure to encrypt all subsequent messages."
}
],
"affected": [
{
"vendor": "github.com/flynn/noise",
"product": "github.com/flynn/noise",
"collectionURL": "https://pkg.go.dev",
"packageName": "github.com/flynn/noise",
"versions": [
{
"version": "0",
"lessThan": "1.0.0",
"status": "affected",
"versionType": "semver"
}
],
"programRoutines": [
{
"name": "CipherState.Encrypt"
},
{
"name": "CipherState.Decrypt"
},
{
"name": "symmetricState.EncryptAndHash"
},
{
"name": "HandshakeState.ReadMessage"
},
{
"name": "HandshakeState.WriteMessage"
},
{
"name": "symmetricState.DecryptAndHash"
}
],
"defaultStatus": "unaffected"
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "CWE 400: Uncontrolled Resource Consumption"
}
]
}
],
"references": [
{
"url": "https://github.com/flynn/noise/pull/44"
},
{
"url": "https://pkg.go.dev/vuln/GO-2022-0425"
}
]
},
"adp": [
{
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2024-08-03T17:23:10.118Z"
},
"title": "CVE Program Container",
"references": [
{
"url": "https://github.com/flynn/noise/pull/44",
"tags": [
"x_transferred"
]
},
{
"url": "https://pkg.go.dev/vuln/GO-2022-0425",
"tags": [
"x_transferred"
]
}
]
},
{
"metrics": [
{
"cvssV3_1": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
}
},
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2025-04-14T16:59:11.062582Z",
"id": "CVE-2021-4239",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2025-04-14T16:59:43.688Z"
}
}
]
}
}