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6472dabe4c
go1.21.4 (released 2023-11-07) includes security fixes to the path/filepath package, as well as bug fixes to the linker, the runtime, the compiler, and the go/types, net/http, and runtime/cgo packages. See the Go 1.21.4 milestone on our issue tracker for details: - https://github.com/golang/go/issues?q=milestone%3AGo1.21.4+label%3ACherryPickApproved - full diff: https://github.com/golang/go/compare/go1.21.3...go1.21.4 from the security mailing: [security] Go 1.21.4 and Go 1.20.11 are released Hello gophers, We have just released Go versions 1.21.4 and 1.20.11, minor point releases. These minor releases include 2 security fixes following the security policy: - path/filepath: recognize `\??\` as a Root Local Device path prefix. 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. The filepath package did not recognize paths with a `\??\` prefix as special. Clean could convert a rooted path such as `\a\..\??\b` into the root local device path `\??\b`. It will now convert this path into `.\??\b`. `IsAbs` did not report paths beginning with `\??\` as absolute. It now does so. VolumeName now reports the `\??\` prefix as a volume name. `Join(`\`, `??`, `b`)` could convert a seemingly innocent sequence of path elements into the root local device path `\??\b`. It will now convert this to `\.\??\b`. This is CVE-2023-45283 and https://go.dev/issue/63713. - path/filepath: recognize device names with trailing spaces and superscripts The `IsLocal` function did not correctly detect reserved names in some cases: - reserved names followed by spaces, such as "COM1 ". - "COM" or "LPT" followed by a superscript 1, 2, or 3. `IsLocal` now correctly reports these names as non-local. This is CVE-2023-45284 and https://go.dev/issue/63713. Signed-off-by: Sebastiaan van Stijn <github@gone.nl> |
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