CVE-2019-19582
Vulnerability from cvelistv5
Published
2019-12-11 16:50
Modified
2024-08-05 02:16
Severity ?
EPSS score ?
Summary
An issue was discovered in Xen through 4.12.x allowing x86 guest OS users to cause a denial of service (infinite loop) because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves functions which may misbehave in certain corner cases: On x86 accesses to bitmaps with a compile time known size of 64 may incur undefined behavior, which may in particular result in infinite loops. A malicious guest may cause a hypervisor crash or hang, resulting in a Denial of Service (DoS). All versions of Xen are vulnerable. x86 systems with 64 or more nodes are vulnerable (there might not be any such systems that Xen would run on). x86 systems with less than 64 nodes are not vulnerable.
References
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-05T02:16:48.555Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://xenbits.xen.org/xsa/advisory-307.html"
},
{
"name": "FEDORA-2019-6aad703290",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/"
},
{
"name": "FEDORA-2019-2e12bd3a9a",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/"
},
{
"name": "openSUSE-SU-2020:0011",
"tags": [
"vendor-advisory",
"x_refsource_SUSE",
"x_transferred"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html"
},
{
"name": "DSA-4602",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN",
"x_transferred"
],
"url": "https://www.debian.org/security/2020/dsa-4602"
},
{
"name": "20200114 [SECURITY] [DSA 4602-1] xen security update",
"tags": [
"mailing-list",
"x_refsource_BUGTRAQ",
"x_transferred"
],
"url": "https://seclists.org/bugtraq/2020/Jan/21"
},
{
"name": "GLSA-202003-56",
"tags": [
"vendor-advisory",
"x_refsource_GENTOO",
"x_transferred"
],
"url": "https://security.gentoo.org/glsa/202003-56"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered in Xen through 4.12.x allowing x86 guest OS users to cause a denial of service (infinite loop) because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves functions which may misbehave in certain corner cases: On x86 accesses to bitmaps with a compile time known size of 64 may incur undefined behavior, which may in particular result in infinite loops. A malicious guest may cause a hypervisor crash or hang, resulting in a Denial of Service (DoS). All versions of Xen are vulnerable. x86 systems with 64 or more nodes are vulnerable (there might not be any such systems that Xen would run on). x86 systems with less than 64 nodes are not vulnerable."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2020-03-26T14:06:16",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://xenbits.xen.org/xsa/advisory-307.html"
},
{
"name": "FEDORA-2019-6aad703290",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/"
},
{
"name": "FEDORA-2019-2e12bd3a9a",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/"
},
{
"name": "openSUSE-SU-2020:0011",
"tags": [
"vendor-advisory",
"x_refsource_SUSE"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html"
},
{
"name": "DSA-4602",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN"
],
"url": "https://www.debian.org/security/2020/dsa-4602"
},
{
"name": "20200114 [SECURITY] [DSA 4602-1] xen security update",
"tags": [
"mailing-list",
"x_refsource_BUGTRAQ"
],
"url": "https://seclists.org/bugtraq/2020/Jan/21"
},
{
"name": "GLSA-202003-56",
"tags": [
"vendor-advisory",
"x_refsource_GENTOO"
],
"url": "https://security.gentoo.org/glsa/202003-56"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2019-19582",
"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": {
"description_data": [
{
"lang": "eng",
"value": "An issue was discovered in Xen through 4.12.x allowing x86 guest OS users to cause a denial of service (infinite loop) because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves functions which may misbehave in certain corner cases: On x86 accesses to bitmaps with a compile time known size of 64 may incur undefined behavior, which may in particular result in infinite loops. A malicious guest may cause a hypervisor crash or hang, resulting in a Denial of Service (DoS). All versions of Xen are vulnerable. x86 systems with 64 or more nodes are vulnerable (there might not be any such systems that Xen would run on). x86 systems with less than 64 nodes are not vulnerable."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://xenbits.xen.org/xsa/advisory-307.html",
"refsource": "MISC",
"url": "https://xenbits.xen.org/xsa/advisory-307.html"
},
{
"name": "FEDORA-2019-6aad703290",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/"
},
{
"name": "FEDORA-2019-2e12bd3a9a",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/"
},
{
"name": "openSUSE-SU-2020:0011",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html"
},
{
"name": "DSA-4602",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2020/dsa-4602"
},
{
"name": "20200114 [SECURITY] [DSA 4602-1] xen security update",
"refsource": "BUGTRAQ",
"url": "https://seclists.org/bugtraq/2020/Jan/21"
},
{
"name": "GLSA-202003-56",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/202003-56"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2019-19582",
"datePublished": "2019-12-11T16:50:13",
"dateReserved": "2019-12-04T00:00:00",
"dateUpdated": "2024-08-05T02:16:48.555Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2019-19582\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2019-12-11T18:16:19.537\",\"lastModified\":\"2023-11-07T03:07:42.630\",\"vulnStatus\":\"Modified\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"An issue was discovered in Xen through 4.12.x allowing x86 guest OS users to cause a denial of service (infinite loop) because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves functions which may misbehave in certain corner cases: On x86 accesses to bitmaps with a compile time known size of 64 may incur undefined behavior, which may in particular result in infinite loops. A malicious guest may cause a hypervisor crash or hang, resulting in a Denial of Service (DoS). All versions of Xen are vulnerable. x86 systems with 64 or more nodes are vulnerable (there might not be any such systems that Xen would run on). x86 systems with less than 64 nodes are not vulnerable.\"},{\"lang\":\"es\",\"value\":\"Se detect\u00f3 un problema en Xen versiones hasta 4.12.x, permitiendo a usuarios invitados del sistema operativo x86 causar una denegaci\u00f3n de servicio (bucle infinito) porque es manejada inapropiadamente cierta iteraci\u00f3n de bits. En varios lugares, el hipervisor est\u00e1 usando mapas de bits para rastrear cierto estado. La iteraci\u00f3n sobre todos los bits implica funciones que pueden comportarse inapropiadamente en ciertos casos de esquina: en x86, los accesos a mapas de bits con un tiempo de compilaci\u00f3n de un tama\u00f1o conocido de 64 pueden provocar un comportamiento indefinido, lo que en particular puede dar como resultado bucles infinitos. Un invitado malicioso puede provocar un bloqueo o bloqueo del hipervisor, resulta en una Denegaci\u00f3n de servicio (DoS). Todas las versiones de Xen son vulnerables. Los sistemas en x86 con 64 o m\u00e1s nodos son vulnerables (es posible que Xen no ejecute ninguno de esos sistemas). Los sistemas en x86 con menos de 64 nodos no son vulnerables.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":2.0,\"impactScore\":4.0}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:N/I:N/A:P\",\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\",\"baseScore\":2.1},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":3.9,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-835\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.8.0\",\"versionEndIncluding\":\"4.12.1\",\"matchCriteriaId\":\"EE89BA42-80AC-4EE2-B4A9-B201914641B6\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"80F0FA5D-8D3B-4C0E-81E2-87998286AF33\"}]}]}],\"references\":[{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://seclists.org/bugtraq/2020/Jan/21\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://security.gentoo.org/glsa/202003-56\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://www.debian.org/security/2020/dsa-4602\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://xenbits.xen.org/xsa/advisory-307.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\",\"Vendor 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.