From: Yogita Urade <yogita.ur...@windriver.com> A vulnerability classified as problematic was found in libtiff 4.6.0. This vulnerability affects the function PS_Lvl2page of the file tools/tiff2ps.c of the component tiff2ps. The manipulation leads to null pointer dereference. It is possible to launch the attack on the local host. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The name of the patch is 6ba36f159fd396ad11bf6b7874554197736ecc8b. It is recommended to apply a patch to fix this issue. One of the maintainers explains, that "[t]his error only occurs if DEFER_STRILE_LOAD (defer-strile-load:BOOL=ON) or TIFFOpen( .. "rD") option is used."
Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-8534 Upstream patch: https://gitlab.com/libtiff/libtiff/-/commit/6ba36f159fd396ad11bf6b7874554197736ecc8b Signed-off-by: Yogita Urade <yogita.ur...@windriver.com> Signed-off-by: Steve Sakoman <st...@sakoman.com> --- .../libtiff/tiff/CVE-2025-8534.patch | 60 +++++++++++++++++++ meta/recipes-multimedia/libtiff/tiff_4.3.0.bb | 1 + 2 files changed, 61 insertions(+) create mode 100644 meta/recipes-multimedia/libtiff/tiff/CVE-2025-8534.patch diff --git a/meta/recipes-multimedia/libtiff/tiff/CVE-2025-8534.patch b/meta/recipes-multimedia/libtiff/tiff/CVE-2025-8534.patch new file mode 100644 index 0000000000..59c14e2703 --- /dev/null +++ b/meta/recipes-multimedia/libtiff/tiff/CVE-2025-8534.patch @@ -0,0 +1,60 @@ +From 6ba36f159fd396ad11bf6b7874554197736ecc8b Mon Sep 17 00:00:00 2001 +From: Su_Laus <su...@freenet.de> +Date: Sat, 2 Aug 2025 18:55:54 +0200 +Subject: [PATCH] tiff2ps: check return of TIFFGetFiled() for + TIFFTAG_STRIPBYTECOUNTS and TIFFTAG_TILEBYTECOUNTS to avoid NULL pointer + dereference. + +Closes #718 + +CVE: CVE-2025-8534 +Upstream-Status: Backport [https://gitlab.com/libtiff/libtiff/-/commit/6ba36f159fd396ad11bf6b7874554197736ecc8b] + +Signed-off-by: Yogita Urade <yogita.ur...@windriver.com> +--- + tools/tiff2ps.c | 20 +++++++++++++++++--- + 1 file changed, 17 insertions(+), 3 deletions(-) + +diff --git a/tools/tiff2ps.c b/tools/tiff2ps.c +index a598ede..05a346a 100644 +--- a/tools/tiff2ps.c ++++ b/tools/tiff2ps.c +@@ -2193,10 +2193,20 @@ PS_Lvl2page(FILE* fd, TIFF* tif, uint32_t w, uint32_t h) + tiled_image = TIFFIsTiled(tif); + if (tiled_image) { + num_chunks = TIFFNumberOfTiles(tif); +- TIFFGetField(tif, TIFFTAG_TILEBYTECOUNTS, &bc); ++ if (!TIFFGetField(tif, TIFFTAG_TILEBYTECOUNTS, &bc)) ++ { ++ TIFFError(filename, ++ "Can't read bytecounts of tiles at PS_Lvl2page()"); ++ return (FALSE); ++ } + } else { + num_chunks = TIFFNumberOfStrips(tif); +- TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &bc); ++ if (!TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &bc)) ++ { ++ TIFFError(filename, ++ "Can't read bytecounts of strips at PS_Lvl2page()"); ++ return (FALSE); ++ } + } + + if (use_rawdata) { +@@ -2791,7 +2801,11 @@ PSRawDataBW(FILE* fd, TIFF* tif, uint32_t w, uint32_t h) + + (void) w; (void) h; + TIFFGetFieldDefaulted(tif, TIFFTAG_FILLORDER, &fillorder); +- TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &bc); ++ if (!TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &bc)) ++ { ++ TIFFError(filename, "Can't read bytecounts of strips at PSRawDataBW()"); ++ return; ++ } + + /* + * Find largest strip: +-- +2.40.0 + diff --git a/meta/recipes-multimedia/libtiff/tiff_4.3.0.bb b/meta/recipes-multimedia/libtiff/tiff_4.3.0.bb index d5ae82bc7c..137dc7f478 100644 --- a/meta/recipes-multimedia/libtiff/tiff_4.3.0.bb +++ b/meta/recipes-multimedia/libtiff/tiff_4.3.0.bb @@ -60,6 +60,7 @@ SRC_URI = "http://download.osgeo.org/libtiff/tiff-${PV}.tar.gz \ file://CVE-2025-8176-0003.patch \ file://CVE-2025-8177.patch \ file://CVE-2024-13978.patch \ + file://CVE-2025-8534.patch \ " SRC_URI[sha256sum] = "0e46e5acb087ce7d1ac53cf4f56a09b221537fc86dfc5daaad1c2e89e1b37ac8" -- 2.43.0
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