Fix CVE-2017-7544:

https://sourceforge.net/p/libexif/bugs/130/
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7544

Patch copied from upstream bug tracker:

https://sourceforge.net/p/libexif/bugs/130/#489a

Index: libexif/exif-data.c
===================================================================
RCS file: /cvsroot/libexif/libexif/libexif/exif-data.c,v
retrieving revision 1.131
diff -u -r1.131 exif-data.c
--- a/libexif/exif-data.c	12 Jul 2012 17:28:26 -0000	1.131
+++ b/libexif/exif-data.c	25 Jul 2017 21:34:06 -0000
@@ -255,6 +255,12 @@
 			exif_mnote_data_set_offset (data->priv->md, *ds - 6);
 			exif_mnote_data_save (data->priv->md, &e->data, &e->size);
 			e->components = e->size;
+			if (exif_format_get_size (e->format) != 1) {
+				/* e->format is taken from input code,
+				 * but we need to make sure it is a 1 byte
+				 * entity due to the multiplication below. */
+				e->format = EXIF_FORMAT_UNDEFINED;
+			}
 		}
 	}
 
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<tr><td><span title='2023-10-28 01:30:37 +0200'>2023-10-28</span></td><td><a href='/guix/commit/tests/guix-environment-container.sh?id=ff1146fb4f7254a8f644f89d7af6b4b566528603'>tests: Adjust to cope with glibc graft.</a><span class='msg-avail'>...<span class='msg-tooltip'>This is a followup to 1328c4cca531318e3ed90c6aecb522a5b22a4bcc, which
led to failures for tests that were not prepared to cope with that.

* tests/guix-environment-container.sh (hello_drv_nested): Pass “-E
GUIX_BUILD_OPTIONS” so ‘--no-grafts’ is passed.
* tests/guix-pack.sh (GUIX_BUILD_OPTIONS): Add ‘--no-grafts’.
* tests/transformations.scm ("options-&gt;transformation, with-graft"):
Skip when ‘glibc-final’ has a replacement.

Change-Id: Ia65c9aeb06f524252815b8290a5ca7bf97ee8136
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-04-21 16:16:38 +0200'>2023-04-21</span></td><td><a href='/guix/commit/tests/guix-environment-container.sh?id=37dd69b44511dc73eb04bdebe8d82c9a0386338e'>tests: Fix checks for expected failures.</a><span class='msg-avail'>...<span class='msg-tooltip'>Addresses &lt;https://issues.guix.gnu.org/62406&gt;.

With 'set -e', a return status inverted with '!' does not cause the shell to
exit immediately.  Instead use '&amp;&amp; false' to indicate an expected failure.

* tests/guix-archive.sh, tests/guix-build-branch.sh, tests/guix-build.sh,
tests/guix-daemon.sh, tests/guix-download.sh,
tests/guix-environment-container.sh, tests/guix-environment.sh,
tests/guix-gc.sh, tests/guix-git-authenticate.sh, tests/guix-graph.sh,
tests/guix-hash.sh, tests/guix-home.sh, tests/guix-pack-relocatable.sh,
tests/guix-pack.sh, tests/guix-package-aliases.sh, tests/guix-package-net.sh,
tests/guix-package.sh, tests/guix-refresh.sh, tests/guix-shell.sh,
tests/guix-style.sh, tests/guix-system.sh: Replace uses of '! ...' with
'... &amp;&amp; false' or `test ! ...` as appropriate.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Eric Bavier</td></tr>
<tr><td><span title='2023-04-06 18:34:15 +0200'>2023-04-06</span></td><td><a href='/guix/commit/tests/guix-environment-container.sh?id=57db09aae73e3713a10c5253758d84e1046f80dc'>environment: Add '--nesting'.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/environment.scm (show-environment-options-help)
(%options): Add '--nesting'.
(options/resolve-packages): Handle it.
(launch-environment/container): Add #:nesting? and honor it.
[nesting-mappings]: New procedure.
(guix-environment*): Add support for '--nesting'.
* guix/scripts/shell.scm (profile-cached-gc-root): Special-case
'nesting?'.
* tests/guix-environment-container.sh: Test it.
* doc/guix.texi (Invoking guix shell): Document it.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-01-15 17:54:14 -0500'>2023-01-15</span></td><td><a href='/guix/commit/tests/guix-environment-container.sh?id=3bfbfa2946aebb7f68c8027ae80f272f6915c94f'>environment: Fix '--emulate-fhs' option overriding $PATH.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://issues.guix.gnu.org/60566&gt; where even if "--preserve='^PATH$'"
was passed to 'guix shell' it would be replaced by just the FHS directories
when '--emulate-fhs' was also set.

* gnu/scripts/environment.scm (launch-environment): Add the FHS directories to
$PATH rather than overriding $PATH completely.
* tests/guix-environment-container.sh: Test that FHS directories are in $PATH
in the container and that $PATH can be preserved.

Co-authored-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>John Kehayias</td></tr>