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CERTFR-2017-AVI-292
Vulnerability from certfr_avis
De multiples vulnérabilités ont été corrigées dans Xen. Elles permettent à un attaquant de provoquer une exécution de code arbitraire, un déni de service et une élévation de privilèges.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Xen toutes versions sans le dernier correctif de sécurité
Impacted products
| Vendor | Product | Description |
|---|
References
| Title | Publication Time | Tags | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [],
"affected_systems_content": "\u003cP\u003eXen toutes versions sans le dernier correctif de s\u00e9curit\u00e9\u003c/P\u003e",
"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-2017-14316",
"url": "https://www.cve.org/CVERecord?id=CVE-2017-14316"
},
{
"name": "CVE-2017-14318",
"url": "https://www.cve.org/CVERecord?id=CVE-2017-14318"
},
{
"name": "CVE-2017-14319",
"url": "https://www.cve.org/CVERecord?id=CVE-2017-14319"
},
{
"name": "CVE-2017-14317",
"url": "https://www.cve.org/CVERecord?id=CVE-2017-14317"
}
],
"initial_release_date": "2017-09-13T00:00:00",
"last_revision_date": "2017-09-13T00:00:00",
"links": [],
"reference": "CERTFR-2017-AVI-292",
"revisions": [
{
"description": "version initiale.",
"revision_date": "2017-09-13T00:00:00.000000"
}
],
"risks": [
{
"description": "Ex\u00e9cution de code arbitraire"
},
{
"description": "D\u00e9ni de service"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 corrig\u00e9es dans \u003cspan\nclass=\"textit\"\u003eXen\u003c/span\u003e. Elles permettent \u00e0 un attaquant de provoquer\nune ex\u00e9cution de code arbitraire, un d\u00e9ni de service et une \u00e9l\u00e9vation de\nprivil\u00e8ges.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Xen",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Xen XSA-232 du 12 septembre 2017",
"url": "http://xenbits.xen.org/xsa/advisory-232.html"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Xen XSA-231 du 12 septembre 2017",
"url": "http://xenbits.xen.org/xsa/advisory-231.html"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Xen XSA-233 du 12 septembre 2017",
"url": "http://xenbits.xen.org/xsa/advisory-233.html"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Xen XSA-234 du 12 septembre 2017",
"url": "http://xenbits.xen.org/xsa/advisory-234.html"
}
]
}
CVE-2017-14316 (GCVE-0-2017-14316)
Vulnerability from cvelistv5
Published
2017-09-12 15:00
Modified
2024-08-05 19:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
A parameter verification issue was discovered in Xen through 4.9.x. The function `alloc_heap_pages` allows callers to specify the first NUMA node that should be used for allocations through the `memflags` parameter; the node is extracted using the `MEMF_get_node` macro. While the function checks to see if the special constant `NUMA_NO_NODE` is specified, it otherwise does not handle the case where `node >= MAX_NUMNODES`. This allows an out-of-bounds access to an internal array.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
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CVE-2017-14318 (GCVE-0-2017-14318)
Vulnerability from cvelistv5
Published
2017-09-12 15:00
Modified
2024-08-05 19:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as `DOMID_XEN`, `DOMID_IO` and `DOMID_COW` are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
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CVE-2017-14317 (GCVE-0-2017-14317)
Vulnerability from cvelistv5
Published
2017-09-12 15:00
Modified
2024-08-05 19:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
A domain cleanup issue was discovered in the C xenstore daemon (aka cxenstored) in Xen through 4.9.x. When shutting down a VM with a stubdomain, a race in cxenstored may cause a double-free. The xenstored daemon may crash, resulting in a DoS of any parts of the system relying on it (including domain creation / destruction, ballooning, device changes, etc.).
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
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CVE-2017-14319 (GCVE-0-2017-14319)
Vulnerability from cvelistv5
Published
2017-09-12 15:00
Modified
2024-08-05 19:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence of the mapping nor page writability were taken into account.
References
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
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