274 lines
12 KiB
JSON
274 lines
12 KiB
JSON
{
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"containers": {
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"cna": {
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"versions": [
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{
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"lessThan": "4.12",
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"status": "unknown",
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"version": "unspecified",
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"versionType": "custom"
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},
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{
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"lessThan": "unspecified",
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"status": "affected",
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"version": "5.5.0",
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"versionType": "custom"
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},
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{
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"lessThan": "unspecified",
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"status": "unaffected",
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"version": "next of 5.12.2",
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"versionType": "custom"
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}
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]
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'This issue was discovered by Michael Brown of iPXE and diagnosed by\\nOlivier Benjamin, Michael Kurth and Martin Mazein of AWS.'}]}}}"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "Guest triggered use-after-free in Linux xen-netback A malicious or buggy network PV frontend can force Linux netback to disable the interface and terminate the receive kernel thread associated with queue 0 in response to the frontend sending a malformed packet. Such kernel thread termination will lead to a use-after-free in Linux netback when the backend is destroyed, as the kernel thread associated with queue 0 will have already exited and thus the call to kthread_stop will be performed against a stale pointer."
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}
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],
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"metrics": [
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{
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"other": {
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"content": {
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "A malicious or buggy frontend driver can trigger a dom0 crash.\nPrivilege escalation and information leaks cannot be ruled out."
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}
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]
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}
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},
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"type": "unknown"
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"description": "unknown",
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"lang": "en",
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"type": "text"
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}
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]
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}
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],
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"providerMetadata": {
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"dateUpdated": "2021-08-05T11:07:09.000Z",
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"orgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
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"shortName": "XEN"
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},
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"references": [
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{
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://xenbits.xenproject.org/xsa/advisory-374.txt"
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},
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{
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"name": "GLSA-202107-30",
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"tags": [
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"vendor-advisory",
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"x_refsource_GENTOO"
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],
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"url": "https://security.gentoo.org/glsa/202107-30"
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},
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{
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://security.netapp.com/advisory/ntap-20210805-0002/"
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}
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],
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"x_legacyV4Record": {
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"CVE_data_meta": {
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"ASSIGNER": "security@xen.org",
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"ID": "CVE-2021-28691",
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"STATE": "PUBLIC"
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"product": {
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"product_data": [
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{
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"product_name": "Linux",
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"version": {
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"version_data": [
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{
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"version_affected": "?<",
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"version_value": "4.12"
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},
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{
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"version_affected": ">=",
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"version_value": "5.5.0"
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},
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{
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"version_affected": "!>",
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"version_value": "5.12.2"
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}
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]
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}
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}
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]
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},
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"vendor_name": "Linux"
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}
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]
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}
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},
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"configuration": {
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"configuration_data": {
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "Systems using Linux version 5.5 or newer are vulnerable."
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}
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]
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}
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}
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},
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"credit": {
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"credit_data": {
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "This issue was discovered by Michael Brown of iPXE and diagnosed by\nOlivier Benjamin, Michael Kurth and Martin Mazein of AWS."
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}
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]
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}
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}
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},
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"data_format": "MITRE",
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"data_type": "CVE",
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"data_version": "4.0",
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "Guest triggered use-after-free in Linux xen-netback A malicious or buggy network PV frontend can force Linux netback to disable the interface and terminate the receive kernel thread associated with queue 0 in response to the frontend sending a malformed packet. Such kernel thread termination will lead to a use-after-free in Linux netback when the backend is destroyed, as the kernel thread associated with queue 0 will have already exited and thus the call to kthread_stop will be performed against a stale pointer."
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}
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]
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},
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"impact": {
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"impact_data": {
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "A malicious or buggy frontend driver can trigger a dom0 crash.\nPrivilege escalation and information leaks cannot be ruled out."
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}
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]
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}
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}
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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "unknown"
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}
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]
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}
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]
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},
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"references": {
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"reference_data": [
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{
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"name": "https://xenbits.xenproject.org/xsa/advisory-374.txt",
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"refsource": "MISC",
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"url": "https://xenbits.xenproject.org/xsa/advisory-374.txt"
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},
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{
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"name": "GLSA-202107-30",
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"refsource": "GENTOO",
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"url": "https://security.gentoo.org/glsa/202107-30"
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},
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{
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"name": "https://security.netapp.com/advisory/ntap-20210805-0002/",
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"refsource": "CONFIRM",
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"url": "https://security.netapp.com/advisory/ntap-20210805-0002/"
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}
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]
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},
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"workaround": {
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"workaround_data": {
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "On x86 running only HVM guests with emulated network cards will avoid the\nissue. There's however no option in the upstream toolstack to offer only\nemulated network cards to guests."
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}
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]
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}
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}
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}
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}
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},
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"adp": [
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{
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2024-08-03T21:47:33.196Z"
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},
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"title": "CVE Program Container",
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"references": [
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{
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"tags": [
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"x_refsource_MISC",
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"x_transferred"
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],
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"url": "https://xenbits.xenproject.org/xsa/advisory-374.txt"
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},
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{
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"name": "GLSA-202107-30",
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"tags": [
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"vendor-advisory",
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"x_refsource_GENTOO",
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"x_transferred"
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],
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"url": "https://security.gentoo.org/glsa/202107-30"
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},
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{
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"tags": [
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"x_refsource_CONFIRM",
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"x_transferred"
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],
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"url": "https://security.netapp.com/advisory/ntap-20210805-0002/"
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}
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]
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}
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]
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},
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"cveMetadata": {
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"assignerOrgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
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"assignerShortName": "XEN",
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"cveId": "CVE-2021-28691",
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"datePublished": "2021-06-29T11:30:53.000Z",
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"dateReserved": "2021-03-18T00:00:00.000Z",
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"dateUpdated": "2024-08-03T21:47:33.196Z",
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"state": "PUBLISHED"
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},
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"dataType": "CVE_RECORD",
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"dataVersion": "5.1"
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} |