289 lines
14 KiB
JSON
289 lines
14 KiB
JSON
{
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"containers": {
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"cna": {
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"affected": [
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{
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"product": "matrix-android-sdk2",
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"vendor": "matrix-org",
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"versions": [
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{
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"status": "affected",
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"version": "< 1.5.1"
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}
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]
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "matrix-android-sdk2 is the Matrix SDK for Android. Prior to version 1.5.1, an attacker cooperating with a malicious homeserver can construct messages appearing to have come from another person. Such messages will be marked with a grey shield on some platforms, but this may be missing in others. This attack is possible due to the key forwarding strategy implemented in the matrix-android-sdk2 that is too permissive. Starting with version 1.5.1, the default policy for accepting key forwards has been made more strict in the matrix-android-sdk2. The matrix-android-sdk2 will now only accept forwarded keys in response to previously issued requests and only from own, verified devices. The SDK now sets a `trusted` flag on the decrypted message upon decryption, based on whether the key used to decrypt the message was received from a trusted source. Clients need to ensure that messages decrypted with a key with `trusted = false` are decorated appropriately (for example, by showing a warning for such messages). As a workaroubnd, current users of the SDK can disable key forwarding in their forks using `CryptoService#enableKeyGossiping(enable: Boolean)`."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 7.5,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "NONE",
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"integrityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
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"version": "3.1"
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-322",
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"description": "CWE-322: Key Exchange without Entity Authentication",
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"lang": "en",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"cweId": "CWE-287",
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"description": "CWE-287: Improper Authentication",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"providerMetadata": {
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"dateUpdated": "2022-09-28T20:00:19.000Z",
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M"
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},
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"references": [
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{
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/matrix-org/matrix-spec-proposals/pull/3061"
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},
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{
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/matrix-org/matrix-android-sdk2/security/advisories/GHSA-2pvj-p485-cp3m"
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},
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{
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/matrix-org/matrix-android-sdk2/commit/77df720a238d17308deab83ecaa37f7a4740a17e"
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},
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{
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/matrix-org/matrix-android-sdk2/releases/tag/v1.5.1"
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}
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],
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"source": {
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"advisory": "GHSA-2pvj-p485-cp3m",
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"discovery": "UNKNOWN"
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},
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"title": "matrix-android-sdk2 vulnerable to impersonation via forwarded Megolm sessions",
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"x_legacyV4Record": {
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"CVE_data_meta": {
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"ASSIGNER": "security-advisories@github.com",
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"ID": "CVE-2022-39246",
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"STATE": "PUBLIC",
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"TITLE": "matrix-android-sdk2 vulnerable to impersonation via forwarded Megolm sessions"
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"product": {
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"product_data": [
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{
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"product_name": "matrix-android-sdk2",
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"version": {
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"version_data": [
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{
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"version_value": "< 1.5.1"
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},
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"vendor_name": "matrix-org"
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},
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"data_format": "MITRE",
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"data_type": "CVE",
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{
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"lang": "eng",
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"value": "matrix-android-sdk2 is the Matrix SDK for Android. Prior to version 1.5.1, an attacker cooperating with a malicious homeserver can construct messages appearing to have come from another person. Such messages will be marked with a grey shield on some platforms, but this may be missing in others. This attack is possible due to the key forwarding strategy implemented in the matrix-android-sdk2 that is too permissive. Starting with version 1.5.1, the default policy for accepting key forwards has been made more strict in the matrix-android-sdk2. The matrix-android-sdk2 will now only accept forwarded keys in response to previously issued requests and only from own, verified devices. The SDK now sets a `trusted` flag on the decrypted message upon decryption, based on whether the key used to decrypt the message was received from a trusted source. Clients need to ensure that messages decrypted with a key with `trusted = false` are decorated appropriately (for example, by showing a warning for such messages). As a workaroubnd, current users of the SDK can disable key forwarding in their forks using `CryptoService#enableKeyGossiping(enable: Boolean)`."
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}
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]
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},
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"impact": {
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"cvss": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 7.5,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "NONE",
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"integrityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
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"version": "3.1"
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}
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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "CWE-322: Key Exchange without Entity Authentication"
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}
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]
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},
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{
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"description": [
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{
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"lang": "eng",
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"value": "CWE-287: Improper Authentication"
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}
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]
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}
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]
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},
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"references": {
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"reference_data": [
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{
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"name": "https://github.com/matrix-org/matrix-spec-proposals/pull/3061",
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"refsource": "MISC",
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"url": "https://github.com/matrix-org/matrix-spec-proposals/pull/3061"
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},
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{
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"name": "https://github.com/matrix-org/matrix-android-sdk2/security/advisories/GHSA-2pvj-p485-cp3m",
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"refsource": "CONFIRM",
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"url": "https://github.com/matrix-org/matrix-android-sdk2/security/advisories/GHSA-2pvj-p485-cp3m"
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},
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{
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"name": "https://github.com/matrix-org/matrix-android-sdk2/commit/77df720a238d17308deab83ecaa37f7a4740a17e",
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"refsource": "MISC",
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"url": "https://github.com/matrix-org/matrix-android-sdk2/commit/77df720a238d17308deab83ecaa37f7a4740a17e"
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},
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{
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"name": "https://github.com/matrix-org/matrix-android-sdk2/releases/tag/v1.5.1",
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"refsource": "MISC",
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"url": "https://github.com/matrix-org/matrix-android-sdk2/releases/tag/v1.5.1"
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}
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]
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},
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"source": {
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"discovery": "UNKNOWN"
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"adp": [
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"dateUpdated": "2024-08-03T12:00:43.348Z"
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"title": "CVE Program Container",
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{
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"metrics": [
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"type": "ssvc",
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"content": {
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"timestamp": "2025-04-23T15:50:49.774935Z",
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"id": "CVE-2022-39246",
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"options": [
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