239 lines
11 KiB
JSON
239 lines
11 KiB
JSON
{
|
|
"containers": {
|
|
"cna": {
|
|
"affected": [
|
|
{
|
|
"product": "zulip",
|
|
"vendor": "zulip",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "< 4.7"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "Zulip is an open source team chat server. In affected versions Zulip allows organization administrators on a server to configure \"linkifiers\" that automatically create links from messages that users send, detected via arbitrary regular expressions. Malicious organization administrators could subject the server to a denial-of-service via regular expression complexity attacks; most simply, by configuring a quadratic-time regular expression in a linkifier, and sending messages that exploited it. A regular expression attempted to parse the user-provided regexes to verify that they were safe from ReDoS -- this was both insufficient, as well as _itself_ subject to ReDoS if the organization administrator entered a sufficiently complex invalid regex. Affected users should [upgrade to the just-released Zulip 4.7](https://zulip.readthedocs.io/en/latest/production/upgrade-or-modify.html#upgrading-to-a-release), or [`main`](https://zulip.readthedocs.io/en/latest/production/upgrade-or-modify.html#upgrading-from-a-git-repository)."
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"attackComplexity": "LOW",
|
|
"attackVector": "NETWORK",
|
|
"availabilityImpact": "LOW",
|
|
"baseScore": 4.3,
|
|
"baseSeverity": "MEDIUM",
|
|
"confidentialityImpact": "NONE",
|
|
"integrityImpact": "NONE",
|
|
"privilegesRequired": "LOW",
|
|
"scope": "UNCHANGED",
|
|
"userInteraction": "NONE",
|
|
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
|
|
"version": "3.1"
|
|
}
|
|
}
|
|
],
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"cweId": "CWE-400",
|
|
"description": "CWE-400: Uncontrolled Resource Consumption",
|
|
"lang": "en",
|
|
"type": "CWE"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"cweId": "CWE-1333",
|
|
"description": "CWE-1333: Inefficient Regular Expression Complexity",
|
|
"lang": "en",
|
|
"type": "CWE"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"providerMetadata": {
|
|
"dateUpdated": "2021-10-07T22:20:13.000Z",
|
|
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
|
|
"shortName": "GitHub_M"
|
|
},
|
|
"references": [
|
|
{
|
|
"tags": [
|
|
"x_refsource_CONFIRM"
|
|
],
|
|
"url": "https://github.com/zulip/zulip/security/advisories/GHSA-4h36-mqfq-42jg"
|
|
},
|
|
{
|
|
"tags": [
|
|
"x_refsource_MISC"
|
|
],
|
|
"url": "https://github.com/zulip/zulip/commit/e2d303c1bb5f538d17dc3d9134bc8858bdece781"
|
|
},
|
|
{
|
|
"tags": [
|
|
"x_refsource_MISC"
|
|
],
|
|
"url": "https://securitylab.github.com/advisories/GHSL-2021-118-zulip-zulip/"
|
|
}
|
|
],
|
|
"source": {
|
|
"advisory": "GHSA-4h36-mqfq-42jg",
|
|
"discovery": "UNKNOWN"
|
|
},
|
|
"title": "Regular expression denial-of-service in Zulip",
|
|
"x_legacyV4Record": {
|
|
"CVE_data_meta": {
|
|
"ASSIGNER": "security-advisories@github.com",
|
|
"ID": "CVE-2021-41115",
|
|
"STATE": "PUBLIC",
|
|
"TITLE": "Regular expression denial-of-service in Zulip"
|
|
},
|
|
"affects": {
|
|
"vendor": {
|
|
"vendor_data": [
|
|
{
|
|
"product": {
|
|
"product_data": [
|
|
{
|
|
"product_name": "zulip",
|
|
"version": {
|
|
"version_data": [
|
|
{
|
|
"version_value": "< 4.7"
|
|
}
|
|
]
|
|
}
|
|
}
|
|
]
|
|
},
|
|
"vendor_name": "zulip"
|
|
}
|
|
]
|
|
}
|
|
},
|
|
"data_format": "MITRE",
|
|
"data_type": "CVE",
|
|
"data_version": "4.0",
|
|
"description": {
|
|
"description_data": [
|
|
{
|
|
"lang": "eng",
|
|
"value": "Zulip is an open source team chat server. In affected versions Zulip allows organization administrators on a server to configure \"linkifiers\" that automatically create links from messages that users send, detected via arbitrary regular expressions. Malicious organization administrators could subject the server to a denial-of-service via regular expression complexity attacks; most simply, by configuring a quadratic-time regular expression in a linkifier, and sending messages that exploited it. A regular expression attempted to parse the user-provided regexes to verify that they were safe from ReDoS -- this was both insufficient, as well as _itself_ subject to ReDoS if the organization administrator entered a sufficiently complex invalid regex. Affected users should [upgrade to the just-released Zulip 4.7](https://zulip.readthedocs.io/en/latest/production/upgrade-or-modify.html#upgrading-to-a-release), or [`main`](https://zulip.readthedocs.io/en/latest/production/upgrade-or-modify.html#upgrading-from-a-git-repository)."
|
|
}
|
|
]
|
|
},
|
|
"impact": {
|
|
"cvss": {
|
|
"attackComplexity": "LOW",
|
|
"attackVector": "NETWORK",
|
|
"availabilityImpact": "LOW",
|
|
"baseScore": 4.3,
|
|
"baseSeverity": "MEDIUM",
|
|
"confidentialityImpact": "NONE",
|
|
"integrityImpact": "NONE",
|
|
"privilegesRequired": "LOW",
|
|
"scope": "UNCHANGED",
|
|
"userInteraction": "NONE",
|
|
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
|
|
"version": "3.1"
|
|
}
|
|
},
|
|
"problemtype": {
|
|
"problemtype_data": [
|
|
{
|
|
"description": [
|
|
{
|
|
"lang": "eng",
|
|
"value": "CWE-400: Uncontrolled Resource Consumption"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"description": [
|
|
{
|
|
"lang": "eng",
|
|
"value": "CWE-1333: Inefficient Regular Expression Complexity"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
},
|
|
"references": {
|
|
"reference_data": [
|
|
{
|
|
"name": "https://github.com/zulip/zulip/security/advisories/GHSA-4h36-mqfq-42jg",
|
|
"refsource": "CONFIRM",
|
|
"url": "https://github.com/zulip/zulip/security/advisories/GHSA-4h36-mqfq-42jg"
|
|
},
|
|
{
|
|
"name": "https://github.com/zulip/zulip/commit/e2d303c1bb5f538d17dc3d9134bc8858bdece781",
|
|
"refsource": "MISC",
|
|
"url": "https://github.com/zulip/zulip/commit/e2d303c1bb5f538d17dc3d9134bc8858bdece781"
|
|
},
|
|
{
|
|
"name": "https://securitylab.github.com/advisories/GHSL-2021-118-zulip-zulip/",
|
|
"refsource": "MISC",
|
|
"url": "https://securitylab.github.com/advisories/GHSL-2021-118-zulip-zulip/"
|
|
}
|
|
]
|
|
},
|
|
"source": {
|
|
"advisory": "GHSA-4h36-mqfq-42jg",
|
|
"discovery": "UNKNOWN"
|
|
}
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"providerMetadata": {
|
|
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
|
|
"shortName": "CVE",
|
|
"dateUpdated": "2024-08-04T02:59:31.570Z"
|
|
},
|
|
"title": "CVE Program Container",
|
|
"references": [
|
|
{
|
|
"tags": [
|
|
"x_refsource_CONFIRM",
|
|
"x_transferred"
|
|
],
|
|
"url": "https://github.com/zulip/zulip/security/advisories/GHSA-4h36-mqfq-42jg"
|
|
},
|
|
{
|
|
"tags": [
|
|
"x_refsource_MISC",
|
|
"x_transferred"
|
|
],
|
|
"url": "https://github.com/zulip/zulip/commit/e2d303c1bb5f538d17dc3d9134bc8858bdece781"
|
|
},
|
|
{
|
|
"tags": [
|
|
"x_refsource_MISC",
|
|
"x_transferred"
|
|
],
|
|
"url": "https://securitylab.github.com/advisories/GHSL-2021-118-zulip-zulip/"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
},
|
|
"cveMetadata": {
|
|
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
|
|
"assignerShortName": "GitHub_M",
|
|
"cveId": "CVE-2021-41115",
|
|
"datePublished": "2021-10-07T22:20:13.000Z",
|
|
"dateReserved": "2021-09-15T00:00:00.000Z",
|
|
"dateUpdated": "2024-08-04T02:59:31.570Z",
|
|
"state": "PUBLISHED"
|
|
},
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.1"
|
|
} |