ghsa-g75p-4v96-pxff
Vulnerability from github
Published
2022-05-17 00:19
Modified
2022-05-17 00:19
Severity ?
Details
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.
{ "affected": [], "aliases": [ "CVE-2017-14318" ], "database_specific": { "cwe_ids": [ "CWE-476" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2017-09-12T15:29:00Z", "severity": "MODERATE" }, "details": "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\u0027s 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.", "id": "GHSA-g75p-4v96-pxff", "modified": "2022-05-17T00:19:55Z", "published": "2022-05-17T00:19:55Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-14318" }, { "type": "WEB", "url": "https://support.citrix.com/article/CTX227185" }, { "type": "WEB", "url": "https://www.debian.org/security/2017/dsa-4050" }, { "type": "WEB", "url": "http://www.securityfocus.com/bid/100817" }, { "type": "WEB", "url": "http://www.securitytracker.com/id/1039349" }, { "type": "WEB", "url": "http://xenbits.xen.org/xsa/advisory-232.html" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H", "type": "CVSS_V3" } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- 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.