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tiff: fix CVE-2025-9900

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A flaw was found in Libtiff. This vulnerability is a "write-what-where"
condition, triggered when the library processes a specially crafted TIFF
image file.[EOL][EOL]By providing an abnormally large image height value
in the file's metadata, an attacker can trick the library into writing
attacker-controlled color data to an arbitrary memory location. This
memory corruption can be exploited to cause a denial of service (application
crash) or to achieve arbitrary code execution with the permissions of the user.

Reference:
https://nvd.nist.gov/vuln/detail/CVE-2025-9900

Upstream patch:
3e0dcf0ec6

(From OE-Core rev: c1303b8eb4e85a031a175867361876a256bfb763)

Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
This commit is contained in:
Yogita Urade
2025-09-30 13:47:48 +05:30
committed by Steve Sakoman
parent eae801c832
commit 2ce56bd707
2 changed files with 55 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
meta/recipes-multimedia/libtiff/tiff/CVE-2025-9900.patch Normal file
View File

@@ -0,0 +1,54 @@
From 3e0dcf0ec651638b2bd849b2e6f3124b36890d99 Mon Sep 17 00:00:00 2001
From: Su Laus <sulau@freenet.de>
Date: Wed, 11 Jun 2025 19:45:19 +0000
Subject: [PATCH] tif_getimage.c: Fix buffer underflow crash for less raster
rows at TIFFReadRGBAImageOriented()
CVE: CVE-2025-9900
Upstream-Status: Backport [https://gitlab.com/libtiff/libtiff/-/commit/3e0dcf0ec651638b2bd849b2e6f3124b36890d99]
Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
---
libtiff/tif_getimage.c | 20 +++++++++++++++++---
1 file changed, 17 insertions(+), 3 deletions(-)
diff --git a/libtiff/tif_getimage.c b/libtiff/tif_getimage.c
index 3c9fc4f..fc8b22e 100644
--- a/libtiff/tif_getimage.c
+++ b/libtiff/tif_getimage.c
@@ -600,6 +600,22 @@ int TIFFRGBAImageGet(TIFFRGBAImage *img, uint32_t *raster, uint32_t w,
"No \"put\" routine setupl; probably can not handle image format");
return (0);
}
+ /* Verify raster width and height against image width and height. */
+ if (h > img->height)
+ {
+ /* Adapt parameters to read only available lines and put image at
+ * the bottom of the raster. */
+ raster += (size_t)(h - img->height) * w;
+ h = img->height;
+ }
+ if (w > img->width)
+ {
+ TIFFWarningExtR(img->tif, TIFFFileName(img->tif),
+ "Raster width of %d shall not be larger than image "
+ "width of %d -> raster width adapted for reading",
+ w, img->width);
+ w = img->width;
+ }
return (*img->get)(img, raster, w, h);
}
@@ -617,9 +633,7 @@ int TIFFReadRGBAImageOriented(TIFF *tif, uint32_t rwidth, uint32_t rheight,
if (TIFFRGBAImageOK(tif, emsg) && TIFFRGBAImageBegin(&img, tif, stop, emsg))
{
img.req_orientation = (uint16_t)orientation;
- /* XXX verify rwidth and rheight against width and height */
- ok = TIFFRGBAImageGet(&img, raster + (rheight - img.height) * rwidth,
- rwidth, img.height);
+ ok = TIFFRGBAImageGet(&img, raster, rwidth, rheight);
TIFFRGBAImageEnd(&img);
}
else
--
2.40.0

1
meta/recipes-multimedia/libtiff/tiff_4.6.0.bb
View File

@@ -17,6 +17,7 @@ SRC_URI = "http://download.osgeo.org/libtiff/tiff-${PV}.tar.gz \
file://CVE-2023-52355-0002.patch \
file://CVE-2023-52356.patch \
file://CVE-2024-7006.patch \
file://CVE-2025-9900.patch \
"
SRC_URI[sha256sum] = "88b3979e6d5c7e32b50d7ec72fb15af724f6ab2cbf7e10880c360a77e4b5d99a"