diff options
Diffstat (limited to 'meta/recipes-multimedia/libtiff/tiff/0004-TIFFFetchNormalTag-avoid-calling-memcpy-with-a-null-.patch')
| -rw-r--r-- | meta/recipes-multimedia/libtiff/tiff/0004-TIFFFetchNormalTag-avoid-calling-memcpy-with-a-null-.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/meta/recipes-multimedia/libtiff/tiff/0004-TIFFFetchNormalTag-avoid-calling-memcpy-with-a-null-.patch b/meta/recipes-multimedia/libtiff/tiff/0004-TIFFFetchNormalTag-avoid-calling-memcpy-with-a-null-.patch new file mode 100644 index 0000000000..719dabaecc --- /dev/null +++ b/meta/recipes-multimedia/libtiff/tiff/0004-TIFFFetchNormalTag-avoid-calling-memcpy-with-a-null-.patch @@ -0,0 +1,33 @@ +CVE: CVE-2022-0908 +Upstream-Status: Backport +Signed-off-by: Ross Burton <ross.burton@arm.com> + +From ef5a0bf271823df168642444d051528a68205cb0 Mon Sep 17 00:00:00 2001 +From: Even Rouault <even.rouault@spatialys.com> +Date: Thu, 17 Feb 2022 15:28:43 +0100 +Subject: [PATCH 4/6] TIFFFetchNormalTag(): avoid calling memcpy() with a null + source pointer and size of zero (fixes #383) + +--- + libtiff/tif_dirread.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/libtiff/tif_dirread.c b/libtiff/tif_dirread.c +index d84147a0..4e8ce729 100644 +--- a/libtiff/tif_dirread.c ++++ b/libtiff/tif_dirread.c +@@ -5079,7 +5079,10 @@ TIFFFetchNormalTag(TIFF* tif, TIFFDirEntry* dp, int recover) + _TIFFfree(data); + return(0); + } +- _TIFFmemcpy(o,data,(uint32_t)dp->tdir_count); ++ if (dp->tdir_count > 0 ) ++ { ++ _TIFFmemcpy(o,data,(uint32_t)dp->tdir_count); ++ } + o[(uint32_t)dp->tdir_count]=0; + if (data!=0) + _TIFFfree(data); +-- +2.25.1 + |