CVE-2023-45283
Vulnerability from cvelistv5
Published
2023-11-09 16:30
Modified
2024-08-02 20:21
Severity ?
Summary
Insecure parsing of Windows paths with a \??\ prefix in path/filepath
References
security@golang.orghttp://www.openwall.com/lists/oss-security/2023/12/05/2
security@golang.orghttps://go.dev/cl/540277Issue Tracking, Vendor Advisory
security@golang.orghttps://go.dev/cl/541175
security@golang.orghttps://go.dev/issue/63713Issue Tracking, Vendor Advisory
security@golang.orghttps://go.dev/issue/64028
security@golang.orghttps://groups.google.com/g/golang-announce/c/4tU8LZfBFkYIssue Tracking, Mailing List, Vendor Advisory
security@golang.orghttps://groups.google.com/g/golang-dev/c/6ypN5EjibjM/m/KmLVYH_uAgAJ
security@golang.orghttps://pkg.go.dev/vuln/GO-2023-2185Issue Tracking, Vendor Advisory
security@golang.orghttps://security.netapp.com/advisory/ntap-20231214-0008/
Impacted products
Go standard librarypath/filepath
Go standard libraryinternal/safefilepath
Go standard librarypath/filepath
Show details on NVD website

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          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "path/filepath",
          "platforms": [
            "windows"
          ],
          "product": "path/filepath",
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              "name": "Join"
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          "value": "The filepath package does not recognize paths with a \\??\\ prefix as special. On Windows, a path beginning with \\??\\ is a Root Local Device path equivalent to a path beginning with \\\\?\\. Paths with a \\??\\ prefix may be used to access arbitrary locations on the system. For example, the path \\??\\c:\\x is equivalent to the more common path c:\\x. Before fix, Clean could convert a rooted path such as \\a\\..\\??\\b into the root local device path \\??\\b. Clean will now convert this to .\\??\\b. Similarly, Join(\\, ??, b) could convert a seemingly innocent sequence of path elements into the root local device path \\??\\b. Join will now convert this to \\.\\??\\b. In addition, with fix, IsAbs now correctly reports paths beginning with \\??\\ as absolute, and VolumeName correctly reports the \\??\\ prefix as a volume name. UPDATE: Go 1.20.11 and Go 1.21.4 inadvertently changed the definition of the volume name in Windows paths starting with \\?, resulting in filepath.Clean(\\?\\c:) returning \\?\\c: rather than \\?\\c:\\ (among other effects). The previous behavior has been restored."
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