mirror of
https://github.com/CVEProject/cvelist.git
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XSA-403 CVE-2022-26365 CVE-2022-33740 CVE-2022-33741 CVE-2022-33742
Xensec source data: xsa.git#xsa-403-v3 Xensec source infra: xsa.git#fdd60fd6958cd4dd775ed24becea388c558d2952
This commit is contained in:
Xen Project Security Team
parent
08f62f138a
commit
5faa8db824
@ -1,18 +1,126 @@
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|
||||
"value" : "The issue related to not zeroing memory areas used for shared communications\nwas discovered by Roger Pau Monné of Citrix.\n\nThe issue related to leaking contiguous data in granted pages was disclosed\npublicly."
|
||||
}
|
||||
]
|
||||
}
|
||||
}
|
||||
},
|
||||
"data_format" : "MITRE",
|
||||
"data_type" : "CVE",
|
||||
"data_version" : "4.0",
|
||||
"description" : {
|
||||
"description_data" : [
|
||||
{
|
||||
"lang" : "eng",
|
||||
"value" : "Linux disk/nic frontends data leaks\n\nT[his CNA information record relates to multiple CVEs; the\ntext explains which aspects/vulnerabilities correspond to which CVE.]\n\nLinux Block and Network PV device frontends don't zero memory regions before\nsharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally\nthe granularity of the grant table doesn't allow sharing less than a 4K page,\nleading to unrelated data residing in the same 4K page as data shared with a\nbackend being accessible by such backend (CVE-2022-33741, CVE-2022-33742)."
|
||||
}
|
||||
]
|
||||
},
|
||||
"impact" : {
|
||||
"impact_data" : {
|
||||
"description" : {
|
||||
"description_data" : [
|
||||
{
|
||||
"lang" : "eng",
|
||||
"value" : "An untrusted backend can access data not intended to be shared. If such\nmappings are made with write permissions the backend could also cause\nmalfunctions and/or crashes to consumers of contiguous data in the shared\npages."
|
||||
}
|
||||
]
|
||||
}
|
||||
}
|
||||
},
|
||||
"problemtype" : {
|
||||
"problemtype_data" : [
|
||||
{
|
||||
"description" : [
|
||||
{
|
||||
"lang" : "eng",
|
||||
"value" : "unknown"
|
||||
}
|
||||
]
|
||||
}
|
||||
]
|
||||
},
|
||||
"references" : {
|
||||
"reference_data" : [
|
||||
{
|
||||
"url" : "https://xenbits.xenproject.org/xsa/advisory-403.txt"
|
||||
}
|
||||
]
|
||||
},
|
||||
"workaround" : {
|
||||
"workaround_data" : {
|
||||
"description" : {
|
||||
"description_data" : [
|
||||
{
|
||||
"lang" : "eng",
|
||||
"value" : "There is no mitigation available other than not using PV devices in case\na backend is suspected to be potentially malicious."
|
||||
}
|
||||
]
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user