CVE-2021-4437 (GCVE-0-2021-4437)
Vulnerability from cvelistv5 – Published: 2024-02-12 19:31 – Updated: 2025-05-06 18:44
VLAI?
Title
dbartholomae lambda-middleware frameguard JSON Mime-Type JsonDeserializer.ts redos
Summary
A vulnerability, which was classified as problematic, has been found in dbartholomae lambda-middleware frameguard up to 1.0.4. Affected by this issue is some unknown functionality of the file packages/json-deserializer/src/JsonDeserializer.ts of the component JSON Mime-Type Handler. The manipulation leads to inefficient regular expression complexity. Upgrading to version 1.1.0 is able to address this issue. The patch is identified as f689404d830cbc1edd6a1018d3334ff5f44dc6a6. It is recommended to upgrade the affected component. VDB-253406 is the identifier assigned to this vulnerability.
Severity ?
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| dbartholomae | lambda-middleware frameguard |
Affected:
1.0.0
Affected: 1.0.1 Affected: 1.0.2 Affected: 1.0.3 Affected: 1.0.4 |
Credits
VulDB GitHub Commit Analyzer
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T17:30:07.795Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"vdb-entry",
"x_transferred"
],
"url": "https://vuldb.com/?id.253406"
},
{
"tags": [
"signature",
"permissions-required",
"x_transferred"
],
"url": "https://vuldb.com/?ctiid.253406"
},
{
"tags": [
"issue-tracking",
"x_transferred"
],
"url": "https://github.com/dbartholomae/lambda-middleware/pull/57"
},
{
"tags": [
"patch",
"x_transferred"
],
"url": "https://github.com/dbartholomae/lambda-middleware/commit/f689404d830cbc1edd6a1018d3334ff5f44dc6a6"
},
{
"tags": [
"patch",
"x_transferred"
],
"url": "https://github.com/dbartholomae/lambda-middleware/releases/tag/%40lambda-middleware%2Fframeguard_v1.1.0"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-4437",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-02-21T20:23:53.494867Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-05-06T18:44:55.263Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"modules": [
"JSON Mime-Type Handler"
],
"product": "lambda-middleware frameguard",
"vendor": "dbartholomae",
"versions": [
{
"status": "affected",
"version": "1.0.0"
},
{
"status": "affected",
"version": "1.0.1"
},
{
"status": "affected",
"version": "1.0.2"
},
{
"status": "affected",
"version": "1.0.3"
},
{
"status": "affected",
"version": "1.0.4"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "tool",
"value": "VulDB GitHub Commit Analyzer"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability, which was classified as problematic, has been found in dbartholomae lambda-middleware frameguard up to 1.0.4. Affected by this issue is some unknown functionality of the file packages/json-deserializer/src/JsonDeserializer.ts of the component JSON Mime-Type Handler. The manipulation leads to inefficient regular expression complexity. Upgrading to version 1.1.0 is able to address this issue. The patch is identified as f689404d830cbc1edd6a1018d3334ff5f44dc6a6. It is recommended to upgrade the affected component. VDB-253406 is the identifier assigned to this vulnerability."
},
{
"lang": "de",
"value": "Eine problematische Schwachstelle wurde in dbartholomae lambda-middleware frameguard bis 1.0.4 entdeckt. Es geht hierbei um eine nicht n\u00e4her spezifizierte Funktion der Datei packages/json-deserializer/src/JsonDeserializer.ts der Komponente JSON Mime-Type Handler. Durch Beeinflussen mit unbekannten Daten kann eine inefficient regular expression complexity-Schwachstelle ausgenutzt werden. Ein Aktualisieren auf die Version 1.1.0 vermag dieses Problem zu l\u00f6sen. Der Patch wird als f689404d830cbc1edd6a1018d3334ff5f44dc6a6 bezeichnet. Als bestm\u00f6gliche Massnahme wird das Einspielen eines Upgrades empfohlen."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 3.5,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 3.5,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 2.7,
"vectorString": "AV:A/AC:L/Au:S/C:N/I:N/A:P",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1333",
"description": "CWE-1333 Inefficient Regular Expression Complexity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-02-12T19:31:05.361Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"tags": [
"vdb-entry"
],
"url": "https://vuldb.com/?id.253406"
},
{
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.253406"
},
{
"tags": [
"issue-tracking"
],
"url": "https://github.com/dbartholomae/lambda-middleware/pull/57"
},
{
"tags": [
"patch"
],
"url": "https://github.com/dbartholomae/lambda-middleware/commit/f689404d830cbc1edd6a1018d3334ff5f44dc6a6"
},
{
"tags": [
"patch"
],
"url": "https://github.com/dbartholomae/lambda-middleware/releases/tag/%40lambda-middleware%2Fframeguard_v1.1.0"
}
],
"timeline": [
{
"lang": "en",
"time": "2021-07-25T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2021-08-31T00:00:00.000Z",
"value": "Countermeasure disclosed"
},
{
"lang": "en",
"time": "2024-02-11T01:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2024-02-11T09:46:00.000Z",
"value": "VulDB entry last update"
}
],
"title": "dbartholomae lambda-middleware frameguard JSON Mime-Type JsonDeserializer.ts redos"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2021-4437",
"datePublished": "2024-02-12T19:31:05.361Z",
"dateReserved": "2024-02-11T08:39:30.241Z",
"dateUpdated": "2025-05-06T18:44:55.263Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2021-4437\",\"sourceIdentifier\":\"cna@vuldb.com\",\"published\":\"2024-02-12T20:15:07.993\",\"lastModified\":\"2024-11-21T06:37:43.740\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability, which was classified as problematic, has been found in dbartholomae lambda-middleware frameguard up to 1.0.4. Affected by this issue is some unknown functionality of the file packages/json-deserializer/src/JsonDeserializer.ts of the component JSON Mime-Type Handler. The manipulation leads to inefficient regular expression complexity. Upgrading to version 1.1.0 is able to address this issue. The patch is identified as f689404d830cbc1edd6a1018d3334ff5f44dc6a6. It is recommended to upgrade the affected component. VDB-253406 is the identifier assigned to this vulnerability.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad clasificada como problem\u00e1tica fue encontrada en dbartholomae lambda-middleware frameguard hasta 1.0.4. Una funci\u00f3n desconocida del archivo packages/json-deserializer/src/JsonDeserializer.ts del componente JSON Mime-Type Handler es afectado por esta vulnerabilidad. La manipulaci\u00f3n conduce a una complejidad de expresiones regulares ineficiente. La actualizaci\u00f3n a la versi\u00f3n 1.1.0 puede solucionar este problema. El parche se identifica como f689404d830cbc1edd6a1018d3334ff5f44dc6a6. Se recomienda actualizar el componente afectado. VDB-253406 es el identificador asignado a esta vulnerabilidad.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":3.5,\"baseSeverity\":\"LOW\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.1,\"impactScore\":1.4},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:A/AC:L/Au:S/C:N/I:N/A:P\",\"baseScore\":2.7,\"accessVector\":\"ADJACENT_NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":5.1,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-1333\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:dbartholomae:lambda-middleware:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"1.0.4\",\"matchCriteriaId\":\"3E5B585D-EB1B-4559-BD1D-2574968430A6\"}]}]}],\"references\":[{\"url\":\"https://github.com/dbartholomae/lambda-middleware/commit/f689404d830cbc1edd6a1018d3334ff5f44dc6a6\",\"source\":\"cna@vuldb.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/dbartholomae/lambda-middleware/pull/57\",\"source\":\"cna@vuldb.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/dbartholomae/lambda-middleware/releases/tag/%40lambda-middleware%2Fframeguard_v1.1.0\",\"source\":\"cna@vuldb.com\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://vuldb.com/?ctiid.253406\",\"source\":\"cna@vuldb.com\",\"tags\":[\"Permissions Required\"]},{\"url\":\"https://vuldb.com/?id.253406\",\"source\":\"cna@vuldb.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/dbartholomae/lambda-middleware/commit/f689404d830cbc1edd6a1018d3334ff5f44dc6a6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/dbartholomae/lambda-middleware/pull/57\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/dbartholomae/lambda-middleware/releases/tag/%40lambda-middleware%2Fframeguard_v1.1.0\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://vuldb.com/?ctiid.253406\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Permissions Required\"]},{\"url\":\"https://vuldb.com/?id.253406\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://vuldb.com/?id.253406\", \"tags\": [\"vdb-entry\", \"x_transferred\"]}, {\"url\": \"https://vuldb.com/?ctiid.253406\", \"tags\": [\"signature\", \"permissions-required\", \"x_transferred\"]}, {\"url\": \"https://github.com/dbartholomae/lambda-middleware/pull/57\", \"tags\": [\"issue-tracking\", \"x_transferred\"]}, {\"url\": \"https://github.com/dbartholomae/lambda-middleware/commit/f689404d830cbc1edd6a1018d3334ff5f44dc6a6\", \"tags\": [\"patch\", \"x_transferred\"]}, {\"url\": \"https://github.com/dbartholomae/lambda-middleware/releases/tag/%40lambda-middleware%2Fframeguard_v1.1.0\", \"tags\": [\"patch\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T17:30:07.795Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-4437\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-02-21T20:23:53.494867Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-05-06T18:44:46.169Z\"}}], \"cna\": {\"title\": \"dbartholomae lambda-middleware frameguard JSON Mime-Type JsonDeserializer.ts redos\", \"credits\": [{\"lang\": \"en\", \"type\": \"tool\", \"value\": \"VulDB GitHub Commit Analyzer\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 3.5, \"baseSeverity\": \"LOW\", \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L\"}}, {\"cvssV3_0\": {\"version\": \"3.0\", \"baseScore\": 3.5, \"baseSeverity\": \"LOW\", \"vectorString\": \"CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L\"}}, {\"cvssV2_0\": {\"version\": \"2.0\", \"baseScore\": 2.7, \"vectorString\": \"AV:A/AC:L/Au:S/C:N/I:N/A:P\"}}], \"affected\": [{\"vendor\": \"dbartholomae\", \"modules\": [\"JSON Mime-Type Handler\"], \"product\": \"lambda-middleware frameguard\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.0.0\"}, {\"status\": \"affected\", \"version\": \"1.0.1\"}, {\"status\": \"affected\", \"version\": \"1.0.2\"}, {\"status\": \"affected\", \"version\": \"1.0.3\"}, {\"status\": \"affected\", \"version\": \"1.0.4\"}]}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2021-07-25T00:00:00.000Z\", \"value\": \"Advisory disclosed\"}, {\"lang\": \"en\", \"time\": \"2021-08-31T00:00:00.000Z\", \"value\": \"Countermeasure disclosed\"}, {\"lang\": \"en\", \"time\": \"2024-02-11T01:00:00.000Z\", \"value\": \"VulDB entry created\"}, {\"lang\": \"en\", \"time\": \"2024-02-11T09:46:00.000Z\", \"value\": \"VulDB entry last update\"}], \"references\": [{\"url\": \"https://vuldb.com/?id.253406\", \"tags\": [\"vdb-entry\"]}, {\"url\": \"https://vuldb.com/?ctiid.253406\", \"tags\": [\"signature\", \"permissions-required\"]}, {\"url\": \"https://github.com/dbartholomae/lambda-middleware/pull/57\", \"tags\": [\"issue-tracking\"]}, {\"url\": \"https://github.com/dbartholomae/lambda-middleware/commit/f689404d830cbc1edd6a1018d3334ff5f44dc6a6\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/dbartholomae/lambda-middleware/releases/tag/%40lambda-middleware%2Fframeguard_v1.1.0\", \"tags\": [\"patch\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability, which was classified as problematic, has been found in dbartholomae lambda-middleware frameguard up to 1.0.4. Affected by this issue is some unknown functionality of the file packages/json-deserializer/src/JsonDeserializer.ts of the component JSON Mime-Type Handler. The manipulation leads to inefficient regular expression complexity. Upgrading to version 1.1.0 is able to address this issue. The patch is identified as f689404d830cbc1edd6a1018d3334ff5f44dc6a6. It is recommended to upgrade the affected component. VDB-253406 is the identifier assigned to this vulnerability.\"}, {\"lang\": \"de\", \"value\": \"Eine problematische Schwachstelle wurde in dbartholomae lambda-middleware frameguard bis 1.0.4 entdeckt. Es geht hierbei um eine nicht n\\u00e4her spezifizierte Funktion der Datei packages/json-deserializer/src/JsonDeserializer.ts der Komponente JSON Mime-Type Handler. Durch Beeinflussen mit unbekannten Daten kann eine inefficient regular expression complexity-Schwachstelle ausgenutzt werden. Ein Aktualisieren auf die Version 1.1.0 vermag dieses Problem zu l\\u00f6sen. Der Patch wird als f689404d830cbc1edd6a1018d3334ff5f44dc6a6 bezeichnet. Als bestm\\u00f6gliche Massnahme wird das Einspielen eines Upgrades empfohlen.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1333\", \"description\": \"CWE-1333 Inefficient Regular Expression Complexity\"}]}], \"providerMetadata\": {\"orgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"shortName\": \"VulDB\", \"dateUpdated\": \"2024-02-12T19:31:05.361Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2021-4437\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-06T18:44:55.263Z\", \"dateReserved\": \"2024-02-11T08:39:30.241Z\", \"assignerOrgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"datePublished\": \"2024-02-12T19:31:05.361Z\", \"assignerShortName\": \"VulDB\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…