From: Natasha Bailey <nat.bai...@windriver.com> This patch fixes an issue in libtiff's LZWDecode function which could cause a null pointer dereference.
Signed-off-by: Natasha Bailey <nat.bai...@windriver.com> --- .../libtiff/files/CVE-2023-2731.patch | 40 +++++++++++++++++++ meta/recipes-multimedia/libtiff/tiff_4.5.0.bb | 4 +- 2 files changed, 43 insertions(+), 1 deletion(-) create mode 100644 meta/recipes-multimedia/libtiff/files/CVE-2023-2731.patch diff --git a/meta/recipes-multimedia/libtiff/files/CVE-2023-2731.patch b/meta/recipes-multimedia/libtiff/files/CVE-2023-2731.patch new file mode 100644 index 0000000000..52fba661c9 --- /dev/null +++ b/meta/recipes-multimedia/libtiff/files/CVE-2023-2731.patch @@ -0,0 +1,40 @@ +From 9be22b639ea69e102d3847dca4c53ef025e9527b Mon Sep 17 00:00:00 2001 +From: Even Rouault <even.roua...@spatialys.com> +Date: Sat, 29 Apr 2023 12:20:46 +0200 +Subject: [PATCH] LZWDecode(): avoid crash when trying to read again from a + strip whith a missing end-of-information marker (fixes #548) + +CVE: CVE-2023-2731 +Upstream-Status: Backport [https://gitlab.com/libtiff/libtiff/-/commit/9be22b639ea69e102d3847dca4c53ef025e9527b] +Signed-off-by: Natasha Bailey <nat.bai...@windriver.com> + +--- + libtiff/tif_lzw.c | 5 +++++ + 1 file changed, 5 insertions(+) + +diff --git a/libtiff/tif_lzw.c b/libtiff/tif_lzw.c +index ba75a07e..d631fa10 100644 +--- a/libtiff/tif_lzw.c ++++ b/libtiff/tif_lzw.c +@@ -423,6 +423,10 @@ static int LZWDecode(TIFF *tif, uint8_t *op0, tmsize_t occ0, uint16_t s) + + if (sp->read_error) + { ++ TIFFErrorExtR(tif, module, ++ "LZWDecode: Scanline %" PRIu32 " cannot be read due to " ++ "previous error", ++ tif->tif_row); + return 0; + } + +@@ -742,6 +746,7 @@ after_loop: + return (1); + + no_eoi: ++ sp->read_error = 1; + TIFFErrorExtR(tif, module, + "LZWDecode: Strip %" PRIu32 " not terminated with EOI code", + tif->tif_curstrip); +-- +2.34.1 + diff --git a/meta/recipes-multimedia/libtiff/tiff_4.5.0.bb b/meta/recipes-multimedia/libtiff/tiff_4.5.0.bb index f8a2482a84..ce371a15f9 100644 --- a/meta/recipes-multimedia/libtiff/tiff_4.5.0.bb +++ b/meta/recipes-multimedia/libtiff/tiff_4.5.0.bb @@ -9,7 +9,9 @@ LIC_FILES_CHKSUM = "file://LICENSE.md;md5=a3e32d664d6db1386b4689c8121531c3" CVE_PRODUCT = "libtiff" SRC_URI = "http://download.osgeo.org/libtiff/tiff-${PV}.tar.gz \ - file://CVE-2022-48281.patch" + file://CVE-2022-48281.patch \ + file://CVE-2023-2731.patch \ + " SRC_URI[sha256sum] = "c7a1d9296649233979fa3eacffef3fa024d73d05d589cb622727b5b08c423464" -- 2.34.1
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