guix/gnu/packages/patches/libtiff-CVE-2022-34526.patch
Marius Bakke c7966ba3ef
gnu: libtiff: Fix CVE-2022-34526.
* gnu/packages/patches/libtiff-CVE-2022-34526.patch: New file.
* gnu/local.mk (dist_patch_DATA): Adjust accordingly.
* gnu/packages/image.scm (libtiff)[source](patches): New field.
2022-09-16 22:41:23 +02:00

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Fix CVE-2022-34526:
https://nvd.nist.gov/vuln/detail/CVE-2022-34526
https://gitlab.com/libtiff/libtiff/-/issues/433
Patch taken from upstream source repository:
https://gitlab.com/libtiff/libtiff/-/commit/275735d0354e39c0ac1dc3c0db2120d6f31d1990
diff --git a/libtiff/tif_dirinfo.c b/libtiff/tif_dirinfo.c
--- a/libtiff/tif_dirinfo.c
+++ b/libtiff/tif_dirinfo.c
@@ -1191,6 +1191,9 @@ _TIFFCheckFieldIsValidForCodec(TIFF *tif, ttag_t tag)
default:
return 1;
}
+ if( !TIFFIsCODECConfigured(tif->tif_dir.td_compression) ) {
+ return 0;
+ }
/* Check if codec specific tags are allowed for the current
* compression scheme (codec) */
switch (tif->tif_dir.td_compression) {