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CERTFR-2022-AVI-314
Vulnerability from certfr_avis - Published: - Updated:
De multiples vulnérabilités ont été découvertes dans Xen. Elles permettent à un attaquant de provoquer un déni de service, une atteinte à la confidentialité des données et une élévation de privilèges.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneImpacted products
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Xen toutes versions sans les derniers correctifs de s\u00e9curit\u00e9 lorsque l\u0027option PCI passthrough est activ\u00e9e",
"product": {
"name": "Xen",
"vendor": {
"name": "XEN",
"scada": false
}
}
},
{
"description": "Xen versions 4.x sans les derniers correctifs de s\u00e9curit\u00e9",
"product": {
"name": "Xen",
"vendor": {
"name": "XEN",
"scada": false
}
}
}
],
"affected_systems_content": null,
"content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
"cves": [
{
"name": "CVE-2022-26361",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-26361"
},
{
"name": "CVE-2022-26357",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-26357"
},
{
"name": "CVE-2022-26359",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-26359"
},
{
"name": "CVE-2022-26360",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-26360"
},
{
"name": "CVE-2022-26356",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-26356"
},
{
"name": "CVE-2022-26358",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-26358"
}
],
"links": [],
"reference": "CERTFR-2022-AVI-314",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2022-04-06T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Xen. Elles\npermettent \u00e0 un attaquant de provoquer un d\u00e9ni de service, une atteinte\n\u00e0 la confidentialit\u00e9 des donn\u00e9es et une \u00e9l\u00e9vation de privil\u00e8ges.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Xen",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Xen xsa-400 du 05 avril 2022",
"url": "https://xenbits.xen.org/xsa/advisory-400.html"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Xen xsa-397 du 05 avril 2022",
"url": "https://xenbits.xen.org/xsa/advisory-397.html"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Xen xsa-399 du 05 avril 2022",
"url": "https://xenbits.xen.org/xsa/advisory-399.html"
}
]
}
CVE-2022-26356 (GCVE-0-2022-26356)
Vulnerability from cvelistv5 – Published: 2022-04-05 00:00 – Updated: 2024-08-03 05:03
VLAI?
EPSS
Summary
Racy interactions between dirty vram tracking and paging log dirty hypercalls Activation of log dirty mode done by XEN_DMOP_track_dirty_vram (was named HVMOP_track_dirty_vram before Xen 4.9) is racy with ongoing log dirty hypercalls. A suitably timed call to XEN_DMOP_track_dirty_vram can enable log dirty while another CPU is still in the process of tearing down the structures related to a previously enabled log dirty mode (XEN_DOMCTL_SHADOW_OP_OFF). This is due to lack of mutually exclusive locking between both operations and can lead to entries being added in already freed slots, resulting in a memory leak.
Severity ?
No CVSS data available.
CWE
- unknown
Assigner
References
| URL | Tags | |
|---|---|---|
|
|
||
Credits
{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'This issue was discovered by Roger Pau Monné of Citrix.'}]}}}
{
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"references": [
{
"tags": [
"x_transferred"
],
"url": "https://xenbits.xenproject.org/xsa/advisory-397.txt"
},
{
"tags": [
"x_transferred"
],
"url": "http://xenbits.xen.org/xsa/advisory-397.html"
},
{
"name": "[oss-security] 20220405 Xen Security Advisory 397 v2 (CVE-2022-26356) - Racy interactions between dirty vram tracking and paging log dirty hypercalls",
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"vendor-advisory",
"x_transferred"
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"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHFSRVLM2JUCPDC2KGB7ETPQYJLCGBLD/"
},
{
"name": "FEDORA-2022-64b2c02d29",
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"vendor-advisory",
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],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ETPM2OVZZ6KOS2L7QO7SIW6XWT5OW3F/"
},
{
"name": "GLSA-202402-07",
"tags": [
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"url": "https://security.gentoo.org/glsa/202402-07"
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"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "xen",
"vendor": "Xen",
"versions": [
{
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}
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}
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}
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}
],
"metrics": [
{
"other": {
"content": {
"description": {
"description_data": [
{
"lang": "eng",
"value": "An attacker can cause Xen to leak memory, eventually leading to a Denial of\nService (DoS) affecting the entire host."
}
]
}
},
"type": "unknown"
}
}
],
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"orgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
"shortName": "XEN"
},
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{
"url": "https://xenbits.xenproject.org/xsa/advisory-397.txt"
},
{
"url": "http://xenbits.xen.org/xsa/advisory-397.html"
},
{
"name": "[oss-security] 20220405 Xen Security Advisory 397 v2 (CVE-2022-26356) - Racy interactions between dirty vram tracking and paging log dirty hypercalls",
"tags": [
"mailing-list"
],
"url": "http://www.openwall.com/lists/oss-security/2022/04/05/1"
},
{
"name": "DSA-5117",
"tags": [
"vendor-advisory"
],
"url": "https://www.debian.org/security/2022/dsa-5117"
},
{
"name": "FEDORA-2022-dfbf7e2372",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHFSRVLM2JUCPDC2KGB7ETPQYJLCGBLD/"
},
{
"name": "FEDORA-2022-64b2c02d29",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ETPM2OVZZ6KOS2L7QO7SIW6XWT5OW3F/"
},
{
"name": "GLSA-202402-07",
"tags": [
"vendor-advisory"
],
"url": "https://security.gentoo.org/glsa/202402-07"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
"assignerShortName": "XEN",
"cveId": "CVE-2022-26356",
"datePublished": "2022-04-05T00:00:00",
"dateReserved": "2022-03-02T00:00:00",
"dateUpdated": "2024-08-03T05:03:32.753Z",
"state": "PUBLISHED"
},
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"dataVersion": "5.1"
}
CVE-2022-26359 (GCVE-0-2022-26359)
Vulnerability from cvelistv5 – Published: 2022-04-05 00:00 – Updated: 2024-08-03 05:03
VLAI?
EPSS
Summary
IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR") for Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used for platform tasks such as legacy USB emulation. Since the precise purpose of these regions is unknown, once a device associated with such a region is active, the mappings of these regions need to remain continuouly accessible by the device. This requirement has been violated. Subsequent DMA or interrupts from the device may have unpredictable behaviour, ranging from IOMMU faults to memory corruption.
Severity ?
No CVSS data available.
CWE
- unknown
Assigner
References
| URL | Tags | |
|---|---|---|
|
|
||
Credits
{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'Aspects of this issue were discovered by Jan Beulich of SUSE and\nRoger Pau Monné of Citrix.'}]}}}
{
"containers": {
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},
"references": [
{
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"url": "https://xenbits.xenproject.org/xsa/advisory-400.txt"
},
{
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"x_transferred"
],
"url": "http://xenbits.xen.org/xsa/advisory-400.html"
},
{
"name": "[oss-security] 20220405 Xen Security Advisory 400 v2 (CVE-2022-26358,CVE-2022-26359,CVE-2022-26360,CVE-2022-26361) - IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues",
"tags": [
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},
{
"name": "FEDORA-2022-dfbf7e2372",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHFSRVLM2JUCPDC2KGB7ETPQYJLCGBLD/"
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{
"name": "FEDORA-2022-64b2c02d29",
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"vendor-advisory",
"x_transferred"
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"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ETPM2OVZZ6KOS2L7QO7SIW6XWT5OW3F/"
},
{
"name": "GLSA-202402-07",
"tags": [
"vendor-advisory",
"x_transferred"
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"url": "https://security.gentoo.org/glsa/202402-07"
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],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "xen",
"vendor": "Xen",
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}
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}
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],
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"url": "http://xenbits.xen.org/xsa/advisory-400.html"
},
{
"name": "[oss-security] 20220405 Xen Security Advisory 400 v2 (CVE-2022-26358,CVE-2022-26359,CVE-2022-26360,CVE-2022-26361) - IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues",
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"mailing-list"
],
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},
{
"name": "DSA-5117",
"tags": [
"vendor-advisory"
],
"url": "https://www.debian.org/security/2022/dsa-5117"
},
{
"name": "FEDORA-2022-dfbf7e2372",
"tags": [
"vendor-advisory"
],
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},
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"name": "GLSA-202402-07",
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CVE-2022-26360 (GCVE-0-2022-26360)
Vulnerability from cvelistv5 – Published: 2022-04-05 00:00 – Updated: 2024-08-03 05:03
VLAI?
EPSS
Summary
IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR") for Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used for platform tasks such as legacy USB emulation. Since the precise purpose of these regions is unknown, once a device associated with such a region is active, the mappings of these regions need to remain continuouly accessible by the device. This requirement has been violated. Subsequent DMA or interrupts from the device may have unpredictable behaviour, ranging from IOMMU faults to memory corruption.
Severity ?
No CVSS data available.
CWE
- unknown
Assigner
References
| URL | Tags | |
|---|---|---|
|
|
||
Credits
{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'Aspects of this issue were discovered by Jan Beulich of SUSE and\nRoger Pau Monné of Citrix.'}]}}}
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},
{
"name": "GLSA-202402-07",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://security.gentoo.org/glsa/202402-07"
}
],
"title": "CVE Program Container"
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],
"cna": {
"affected": [
{
"product": "xen",
"vendor": "Xen",
"versions": [
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"status": "unknown",
"version": "consult Xen advisory XSA-400"
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}
],
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"lang": "en",
"value": "IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, \"RMRR\") for Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used for platform tasks such as legacy USB emulation. Since the precise purpose of these regions is unknown, once a device associated with such a region is active, the mappings of these regions need to remain continuouly accessible by the device. This requirement has been violated. Subsequent DMA or interrupts from the device may have unpredictable behaviour, ranging from IOMMU faults to memory corruption."
}
],
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"value": "The precise impact is system specific, but would likely be a Denial of\nService (DoS) affecting the entire host. Privilege escalation and\ninformation leaks cannot be ruled out."
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"references": [
{
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},
{
"url": "http://xenbits.xen.org/xsa/advisory-400.html"
},
{
"name": "[oss-security] 20220405 Xen Security Advisory 400 v2 (CVE-2022-26358,CVE-2022-26359,CVE-2022-26360,CVE-2022-26361) - IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues",
"tags": [
"mailing-list"
],
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},
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"tags": [
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"url": "https://www.debian.org/security/2022/dsa-5117"
},
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],
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CVE-2022-26357 (GCVE-0-2022-26357)
Vulnerability from cvelistv5 – Published: 2022-04-05 00:00 – Updated: 2024-08-03 05:03
VLAI?
EPSS
Summary
race in VT-d domain ID cleanup Xen domain IDs are up to 15 bits wide. VT-d hardware may allow for only less than 15 bits to hold a domain ID associating a physical device with a particular domain. Therefore internally Xen domain IDs are mapped to the smaller value range. The cleaning up of the housekeeping structures has a race, allowing for VT-d domain IDs to be leaked and flushes to be bypassed.
Severity ?
No CVSS data available.
CWE
- unknown
Assigner
References
| URL | Tags | |
|---|---|---|
|
|
||
Credits
{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'This issue was discovered by Jan Beulich of SUSE.'}]}}}
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CVE-2022-26358 (GCVE-0-2022-26358)
Vulnerability from cvelistv5 – Published: 2022-04-05 00:00 – Updated: 2024-08-03 05:03
VLAI?
EPSS
Summary
IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR") for Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used for platform tasks such as legacy USB emulation. Since the precise purpose of these regions is unknown, once a device associated with such a region is active, the mappings of these regions need to remain continuouly accessible by the device. This requirement has been violated. Subsequent DMA or interrupts from the device may have unpredictable behaviour, ranging from IOMMU faults to memory corruption.
Severity ?
No CVSS data available.
CWE
- unknown
Assigner
References
| URL | Tags | |
|---|---|---|
|
|
||
Credits
{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'Aspects of this issue were discovered by Jan Beulich of SUSE and\nRoger Pau Monné of Citrix.'}]}}}
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CVE-2022-26361 (GCVE-0-2022-26361)
Vulnerability from cvelistv5 – Published: 2022-04-05 00:00 – Updated: 2024-08-03 05:03
VLAI?
EPSS
Summary
IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR") for Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used for platform tasks such as legacy USB emulation. Since the precise purpose of these regions is unknown, once a device associated with such a region is active, the mappings of these regions need to remain continuouly accessible by the device. This requirement has been violated. Subsequent DMA or interrupts from the device may have unpredictable behaviour, ranging from IOMMU faults to memory corruption.
Severity ?
No CVSS data available.
CWE
- unknown
Assigner
References
| URL | Tags | |
|---|---|---|
|
|
||
Credits
{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'Aspects of this issue were discovered by Jan Beulich of SUSE and\nRoger Pau Monné of Citrix.'}]}}}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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