300 lines
14 KiB
JSON
300 lines
14 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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"status": "unknown",
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"version": "consult Xen advisory XSA-391"
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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 Jürgen Groß of SUSE.'}]}}}"
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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": "Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the ability to run PV backends in regular unprivileged guests, typically referred to as \"driver domains\". Running PV backends in driver domains has one primary security advantage: if a driver domain gets compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain could try to attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due to trying to service interrupts for elongated amounts of time. There are three affected backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch 3, CVE-2021-28713"
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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": "Potentially malicious PV backends can cause guest DoS due to unhardened\nfrontends in the guests, even though this ought to have been prevented by\ncontaining them within a driver domain."
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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": "2022-03-10T02:06:52.000Z",
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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-391.txt"
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},
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{
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"name": "DSA-5050",
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"tags": [
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"vendor-advisory",
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"x_refsource_DEBIAN"
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],
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"url": "https://www.debian.org/security/2022/dsa-5050"
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},
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{
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"name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2940-1] linux security update",
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"tags": [
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"mailing-list",
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"x_refsource_MLIST"
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],
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"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html"
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},
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{
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"name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update",
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"tags": [
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"mailing-list",
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"x_refsource_MLIST"
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],
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"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"
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},
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{
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"name": "DSA-5096",
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"tags": [
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"vendor-advisory",
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"x_refsource_DEBIAN"
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],
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"url": "https://www.debian.org/security/2022/dsa-5096"
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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-2021-28712",
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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": "consult Xen advisory XSA-391"
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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": "All guests being serviced by potentially malicious backends are vulnerable,\neven if those backends are running in a less privileged environment. The\nvulnerability is not affecting the host, but the 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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"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 Jürgen Groß of SUSE."
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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": "Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the ability to run PV backends in regular unprivileged guests, typically referred to as \"driver domains\". Running PV backends in driver domains has one primary security advantage: if a driver domain gets compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain could try to attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due to trying to service interrupts for elongated amounts of time. There are three affected backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch 3, CVE-2021-28713"
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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": "Potentially malicious PV backends can cause guest DoS due to unhardened\nfrontends in the guests, even though this ought to have been prevented by\ncontaining them within a driver domain."
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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-391.txt",
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"refsource": "MISC",
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"url": "https://xenbits.xenproject.org/xsa/advisory-391.txt"
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},
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{
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"name": "DSA-5050",
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"refsource": "DEBIAN",
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"url": "https://www.debian.org/security/2022/dsa-5050"
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},
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{
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"name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2940-1] linux security update",
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"refsource": "MLIST",
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"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html"
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},
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{
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"name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update",
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"refsource": "MLIST",
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"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"
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},
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{
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"name": "DSA-5096",
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"refsource": "DEBIAN",
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"url": "https://www.debian.org/security/2022/dsa-5096"
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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": "There is no known mitigation available."
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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": "2024-08-03T21:55:11.592Z"
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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-391.txt"
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},
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{
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"name": "DSA-5050",
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"tags": [
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"vendor-advisory",
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"x_refsource_DEBIAN",
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"x_transferred"
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],
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"url": "https://www.debian.org/security/2022/dsa-5050"
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},
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{
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"name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2940-1] linux security update",
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],
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"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html"
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},
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{
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"name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update",
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"tags": [
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"mailing-list",
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"x_refsource_MLIST",
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],
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"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"
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},
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{
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"name": "DSA-5096",
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"tags": [
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"vendor-advisory",
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"x_refsource_DEBIAN",
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"x_transferred"
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],
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"url": "https://www.debian.org/security/2022/dsa-5096"
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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-2021-28712",
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"datePublished": "2022-01-05T16:10:23.000Z",
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"dateReserved": "2021-03-18T00:00:00.000Z",
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"dateUpdated": "2024-08-03T21:55:11.592Z",
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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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} |