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Add CVE-2022-36009 for GHSA-grvv-h2f9-7v9c

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Add CVE-2022-36009 for GHSA-grvv-h2f9-7v9c
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advisory-database[bot] 2022-08-19 20:31:00 +00:00 committed by GitHub
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2022/36xxx/CVE-2022-36009.json
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{
"data_type": "CVE",
"data_format": "MITRE",
"data_version": "4.0",
"CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2022-36009",
"ASSIGNER": "cve@mitre.org",
"STATE": "RESERVED"
"STATE": "PUBLIC",
"TITLE": "Incorrect parsing of access level in gomatrixserverlib and dendrite"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "gomatrixserverlib",
"version": {
"version_data": [
{
"version_value": "< 0.9.3 for dendrite"
},
{
"version_value": " < 723fd49 for gomatrixserverlib"
}
]
}
}
]
},
"vendor_name": "matrix-org"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
"value": "gomatrixserverlib is a Go library for matrix protocol federation. Dendrite is a Matrix homeserver written in Go, an alternative to Synapse. The power level parsing within gomatrixserverlib was failing to parse the `\"events_default\"` key of the `m.room.power_levels` event, defaulting the event default power level to zero in all cases. Power levels are the matrix terminology for user access level. In rooms where the `\"events_default\"` power level had been changed, this could result in events either being incorrectly authorised or rejected by Dendrite servers. gomatrixserverlib contains a fix as of commit `723fd49` and Dendrite 0.9.3 has been updated accordingly. Matrix rooms where the `\"events_default\"` power level has not been changed from the default of zero are not vulnerable. Users are advised to upgrade. There are no known workarounds for this issue."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.0,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-863: Incorrect Authorization"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/matrix-org/gomatrixserverlib/security/advisories/GHSA-grvv-h2f9-7v9c",
"refsource": "CONFIRM",
"url": "https://github.com/matrix-org/gomatrixserverlib/security/advisories/GHSA-grvv-h2f9-7v9c"
},
{
"name": "https://github.com/matrix-org/gomatrixserverlib/commit/723fd495dde835d078b9f2074b6b62c06dea4575",
"refsource": "MISC",
"url": "https://github.com/matrix-org/gomatrixserverlib/commit/723fd495dde835d078b9f2074b6b62c06dea4575"
},
{
"name": "https://matrix.org/docs/guides/moderation/#power-levels",
"refsource": "MISC",
"url": "https://matrix.org/docs/guides/moderation/#power-levels"
}
]
},
"source": {
"advisory": "GHSA-grvv-h2f9-7v9c",
"discovery": "UNKNOWN"
}
}