gsd-2020-29040
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
An issue was discovered in Xen through 4.14.x allowing x86 HVM guest OS users to cause a denial of service (stack corruption), cause a data leak, or possibly gain privileges because of an off-by-one error. NOTE: this issue is caused by an incorrect fix for CVE-2020-27671.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-29040",
"description": "An issue was discovered in Xen through 4.14.x allowing x86 HVM guest OS users to cause a denial of service (stack corruption), cause a data leak, or possibly gain privileges because of an off-by-one error. NOTE: this issue is caused by an incorrect fix for CVE-2020-27671.",
"id": "GSD-2020-29040",
"references": [
"https://www.suse.com/security/cve/CVE-2020-29040.html",
"https://linux.oracle.com/cve/CVE-2020-29040.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-29040"
],
"details": "An issue was discovered in Xen through 4.14.x allowing x86 HVM guest OS users to cause a denial of service (stack corruption), cause a data leak, or possibly gain privileges because of an off-by-one error. NOTE: this issue is caused by an incorrect fix for CVE-2020-27671.",
"id": "GSD-2020-29040",
"modified": "2023-12-13T01:22:11.726399Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2020-29040",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
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"value": "An issue was discovered in Xen through 4.14.x allowing x86 HVM guest OS users to cause a denial of service (stack corruption), cause a data leak, or possibly gain privileges because of an off-by-one error. NOTE: this issue is caused by an incorrect fix for CVE-2020-27671."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "http://xenbits.xen.org/xsa/advisory-355.html",
"refsource": "CONFIRM",
"url": "http://xenbits.xen.org/xsa/advisory-355.html"
},
{
"name": "https://xenbits.xen.org/xsa/advisory-355.html",
"refsource": "MISC",
"url": "https://xenbits.xen.org/xsa/advisory-355.html"
},
{
"name": "[oss-security] 20210119 Xen Security Advisory 355 v3 (CVE-2020-29040) - stack corruption from XSA-346 change",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2021/01/19/4"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "4.14.0",
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2020-29040"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "An issue was discovered in Xen through 4.14.x allowing x86 HVM guest OS users to cause a denial of service (stack corruption), cause a data leak, or possibly gain privileges because of an off-by-one error. NOTE: this issue is caused by an incorrect fix for CVE-2020-27671."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-787"
},
{
"lang": "en",
"value": "CWE-193"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://xenbits.xen.org/xsa/advisory-355.html",
"refsource": "MISC",
"tags": [
"Vendor Advisory"
],
"url": "https://xenbits.xen.org/xsa/advisory-355.html"
},
{
"name": "[oss-security] 20210119 Xen Security Advisory 355 v3 (CVE-2020-29040) - stack corruption from XSA-346 change",
"refsource": "MLIST",
"tags": [
"Mailing List",
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],
"url": "http://www.openwall.com/lists/oss-security/2021/01/19/4"
},
{
"name": "http://xenbits.xen.org/xsa/advisory-355.html",
"refsource": "CONFIRM",
"tags": [
"Vendor Advisory"
],
"url": "http://xenbits.xen.org/xsa/advisory-355.html"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.6,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.0,
"impactScore": 6.0
}
},
"lastModifiedDate": "2022-04-26T16:34Z",
"publishedDate": "2020-11-24T17:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- 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.