master has libtiff 4.4.0 so this doesn’t apply. Is the CVE still valid in that release, or has it been fixed?
Ross > On 22 Nov 2022, at 15:37, Qiu, Zheng via lists.openembedded.org > <Zheng.Qiu=windriver....@lists.openembedded.org> wrote: > > This patch contains a fix for CVE-2022-3970 > > Reference: > https://nvd.nist.gov/vuln/detail/CVE-2022-3970 > https://security-tracker.debian.org/tracker/CVE-2022-3970 > > Patch generated from : > https://gitlab.com/libtiff/libtiff/-/commit/227500897dfb07fb7d27f7aa570050e62617e3be > > Upstream-Status: Accepted > > Signed-off-by: Zheng Qiu <zheng....@windriver.com> > --- > .../libtiff/tiff/CVE-2022-3970.patch | 38 +++++++++++++++++++ > meta/recipes-multimedia/libtiff/tiff_4.3.0.bb | 1 + > 2 files changed, 39 insertions(+) > create mode 100644 meta/recipes-multimedia/libtiff/tiff/CVE-2022-3970.patch > > diff --git a/meta/recipes-multimedia/libtiff/tiff/CVE-2022-3970.patch > b/meta/recipes-multimedia/libtiff/tiff/CVE-2022-3970.patch > new file mode 100644 > index 0000000000..e8f143933a > --- /dev/null > +++ b/meta/recipes-multimedia/libtiff/tiff/CVE-2022-3970.patch > @@ -0,0 +1,38 @@ > +From 227500897dfb07fb7d27f7aa570050e62617e3be Mon Sep 17 00:00:00 2001 > +From: Even Rouault <even.roua...@spatialys.com> > +Date: Tue, 8 Nov 2022 15:16:58 +0100 > +Subject: [PATCH] TIFFReadRGBATileExt(): fix (unsigned) integer overflow on > + strips/tiles > 2 GB > + > +Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53137 > +--- > + libtiff/tif_getimage.c | 8 ++++---- > + 1 file changed, 4 insertions(+), 4 deletions(-) > + > +diff --git a/libtiff/tif_getimage.c b/libtiff/tif_getimage.c > +index a4d0c1d6..60b94d8e 100644 > +--- a/libtiff/tif_getimage.c > ++++ b/libtiff/tif_getimage.c > +@@ -3016,15 +3016,15 @@ TIFFReadRGBATileExt(TIFF* tif, uint32_t col, > uint32_t row, uint32_t * raster, in > + return( ok ); > + > + for( i_row = 0; i_row < read_ysize; i_row++ ) { > +- memmove( raster + (tile_ysize - i_row - 1) * tile_xsize, > +- raster + (read_ysize - i_row - 1) * read_xsize, > ++ memmove( raster + (size_t)(tile_ysize - i_row - 1) * tile_xsize, > ++ raster + (size_t)(read_ysize - i_row - 1) * read_xsize, > + read_xsize * sizeof(uint32_t) ); > +- _TIFFmemset( raster + (tile_ysize - i_row - 1) * > tile_xsize+read_xsize, > ++ _TIFFmemset( raster + (size_t)(tile_ysize - i_row - 1) * > tile_xsize+read_xsize, > + 0, sizeof(uint32_t) * (tile_xsize - read_xsize) ); > + } > + > + for( i_row = read_ysize; i_row < tile_ysize; i_row++ ) { > +- _TIFFmemset( raster + (tile_ysize - i_row - 1) * tile_xsize, > ++ _TIFFmemset( raster + (size_t)(tile_ysize - i_row - 1) * tile_xsize, > + 0, sizeof(uint32_t) * tile_xsize ); > + } > + > +-- > +2.33.0 > + > diff --git a/meta/recipes-multimedia/libtiff/tiff_4.3.0.bb > b/meta/recipes-multimedia/libtiff/tiff_4.3.0.bb > index f84057c46b..0fbe515e9d 100644 > --- a/meta/recipes-multimedia/libtiff/tiff_4.3.0.bb > +++ b/meta/recipes-multimedia/libtiff/tiff_4.3.0.bb > @@ -24,6 +24,7 @@ SRC_URI = > "http://download.osgeo.org/libtiff/tiff-${PV}.tar.gz \ > file://CVE-2022-34526.patch \ > file://CVE-2022-2869.patch \ > file://CVE-2022-2867.patch \ > + file://CVE-2022-3970.patch \ > file://b258ed69a485a9cfb299d9f060eb2a46c54e5903.patch \ > " > > -- > 2.33.0 > > > >
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