[bug#30827] [PATCH] gnu: util-linux: Fix CVE-2018-7738.

[Ludovic Courtès]

Hi,

Marius Bakke <address@hidden> skribis:

> Leo Famulari <address@hidden> writes:

[...]

>> From c29872dab8ca0a8fc20bdaf4183d6f061fa2c677 Mon Sep 17 00:00:00 2001
>> From: Leo Famulari <address@hidden>
>> Date: Mon, 19 Mar 2018 17:13:26 -0400
>> Subject: [PATCH] gnu: util-linux: Fix CVE-2018-7738 without grafting.
>>
>> * gnu/packages/linux.scm (util-linux)[replacement]: Remove field.
>> (util-linux-2.31.1): New variable.
>> * gnu/system.scm (%base-packages): Use util-linux-2.31.1.
>
> [...]
>   
>> -(define util-linux/fixed
>> +;; The patch 'util-linux-CVE-2018-7738.patch' fixes a security bug in
>> +;; the Bash completions for `mount`. Since this bug doesn't affect
>> +;; other programs that link against libraries from util-linux, we don't
>> +;; need to use a graft to make the fix available. Instead, users
>> +;; installing util-linux will get the fix in this newer version, and
>> +;; (@ (gnu system) %base-packages) takes care to use this package.
>> +;; This solution was suggested here:
>> +;; <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=30827#13>
>> +(define-public util-linux-2.31.1
>>    (package
>>      (inherit util-linux)
>> -    (source
>> -      (origin
>> -        (inherit (package-source util-linux))
>> -        (patches (append (origin-patches (package-source util-linux))
>> -                         (search-patches 
>> "util-linux-CVE-2018-7738.patch")))))))
>> +    (name "util-linux")
>> +    ;; XXX Don't update this without also updating %base-packages!
>> +    (version "2.31.1")
>> +    (source (origin
>> +              (method url-fetch)
>> +              (uri (string-append "mirror://kernel.org/linux/utils/"
>> +                                  name "/v" (version-major+minor version) 
>> "/"
>> +                                  name "-" version ".tar.xz"))
>> +              (sha256
>> +               (base32
>> +                "04fzrnrr3pvqskvjn9f81y0knh0jvvqx4lmbz5pd4lfdm5pv2l8s"))
>> +              (patches (search-patches "util-linux-tests.patch"
>> +                                       "util-linux-CVE-2018-7738.patch"))
>> +              (modules '((guix build utils)))
>> +              (snippet
>> +               ;; We take the 'logger' program from GNU Inetutils and 'kill'
>> +               ;; from GNU Coreutils.
>> +               '(begin
>> +                  (substitute* "configure"
>> +                    (("build_logger=yes") "build_logger=no")
>> +                    (("build_kill=yes") "build_kill=no"))
>> +                  #t))))))
>
> You can keep (inherit (package-source ...)) here to avoid duplicating
> snippet, modules and method.  Apart from that LGTM.

Agreed.

Thank you!

Ludo’.