cve-2020-8244
Vulnerability from cvelistv5
Published
2020-08-30 13:43
Modified
2024-08-04 09:56
Severity ?
EPSS score ?
Summary
A buffer over-read vulnerability exists in bl <4.0.3, <3.0.1, <2.2.1, and <1.2.3 which could allow an attacker to supply user input (even typed) that if it ends up in consume() argument and can become negative, the BufferList state can be corrupted, tricking it into exposing uninitialized memory via regular .slice() calls.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| support@hackerone.com | https://hackerone.com/reports/966347 | Exploit, Patch, Third Party Advisory | |
| support@hackerone.com | https://lists.debian.org/debian-lts-announce/2021/06/msg00028.html | Mailing List, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://hackerone.com/reports/966347 | Exploit, Patch, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://lists.debian.org/debian-lts-announce/2021/06/msg00028.html | Mailing List, Third Party Advisory |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T09:56:28.050Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://hackerone.com/reports/966347"
},
{
"name": "[debian-lts-announce] 20210630 [SECURITY] [DLA 2698-1] node-bl security update",
"tags": [
"mailing-list",
"x_refsource_MLIST",
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00028.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "bl",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Fixed in 4.0.3, 3.0.1, 2.2.1, and 1.2.3"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A buffer over-read vulnerability exists in bl \u003c4.0.3, \u003c3.0.1, \u003c2.2.1, and \u003c1.2.3 which could allow an attacker to supply user input (even typed) that if it ends up in consume() argument and can become negative, the BufferList state can be corrupted, tricking it into exposing uninitialized memory via regular .slice() calls."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-126",
"description": "Buffer Over-read (CWE-126)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-07-01T02:06:10",
"orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
"shortName": "hackerone"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://hackerone.com/reports/966347"
},
{
"name": "[debian-lts-announce] 20210630 [SECURITY] [DLA 2698-1] node-bl security update",
"tags": [
"mailing-list",
"x_refsource_MLIST"
],
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00028.html"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "support@hackerone.com",
"ID": "CVE-2020-8244",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "bl",
"version": {
"version_data": [
{
"version_value": "Fixed in 4.0.3, 3.0.1, 2.2.1, and 1.2.3"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "A buffer over-read vulnerability exists in bl \u003c4.0.3, \u003c3.0.1, \u003c2.2.1, and \u003c1.2.3 which could allow an attacker to supply user input (even typed) that if it ends up in consume() argument and can become negative, the BufferList state can be corrupted, tricking it into exposing uninitialized memory via regular .slice() calls."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Buffer Over-read (CWE-126)"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://hackerone.com/reports/966347",
"refsource": "MISC",
"url": "https://hackerone.com/reports/966347"
},
{
"name": "[debian-lts-announce] 20210630 [SECURITY] [DLA 2698-1] node-bl security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00028.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
"assignerShortName": "hackerone",
"cveId": "CVE-2020-8244",
"datePublished": "2020-08-30T13:43:55",
"dateReserved": "2020-01-28T00:00:00",
"dateUpdated": "2024-08-04T09:56:28.050Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2020-8244\",\"sourceIdentifier\":\"support@hackerone.com\",\"published\":\"2020-08-30T15:15:12.167\",\"lastModified\":\"2024-11-21T05:38:34.760\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A buffer over-read vulnerability exists in bl \u003c4.0.3, \u003c3.0.1, \u003c2.2.1, and \u003c1.2.3 which could allow an attacker to supply user input (even typed) that if it ends up in consume() argument and can become negative, the BufferList state can be corrupted, tricking it into exposing uninitialized memory via regular .slice() calls.\"},{\"lang\":\"es\",\"value\":\"Se presenta una vulnerabilidad de lectura excesiva del b\u00fafer en bl versiones anteriores a 4.0.3, versiones anteriores a 3.0.1, versiones anteriores a 2.2.1 versiones anteriores a 1.2.3 que podr\u00eda permitir a un atacante suministrar informaci\u00f3n del usuario (incluso escrita) que si termina en el argumento de consume() y puede volverse negativa, el estado de BufferList puede estar corrupto, enga\u00f1\u00e1ndolo para que exponga la memoria no inicializada por medio de llamadas regulares de .slice()\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.9,\"impactScore\":2.5}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:N/A:P\",\"baseScore\":6.4,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":4.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"support@hackerone.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-126\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:bufferlist_project:bufferlist:*:*:*:*:*:node.js:*:*\",\"versionEndExcluding\":\"1.2.3\",\"matchCriteriaId\":\"BE477499-8C07-4A21-80ED-522252634656\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:bufferlist_project:bufferlist:*:*:*:*:*:node.js:*:*\",\"versionStartIncluding\":\"2.0.0\",\"versionEndExcluding\":\"2.2.1\",\"matchCriteriaId\":\"3BAC5D84-F507-43F3-8F02-30B19CAB6CB5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:bufferlist_project:bufferlist:*:*:*:*:*:node.js:*:*\",\"versionStartIncluding\":\"3.0.0\",\"versionEndExcluding\":\"3.0.1\",\"matchCriteriaId\":\"F970C0FA-2479-4F5B-BF15-010C22CE5DB6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:bufferlist_project:bufferlist:*:*:*:*:*:node.js:*:*\",\"versionStartIncluding\":\"4.0.0\",\"versionEndExcluding\":\"4.0.3\",\"matchCriteriaId\":\"6609D49F-7700-4262-AAF3-1470A1CEB9E0\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DEECE5FC-CACF-4496-A3E7-164736409252\"}]}]}],\"references\":[{\"url\":\"https://hackerone.com/reports/966347\",\"source\":\"support@hackerone.com\",\"tags\":[\"Exploit\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2021/06/msg00028.html\",\"source\":\"support@hackerone.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://hackerone.com/reports/966347\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2021/06/msg00028.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]}]}}"
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.