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[AutoPR- Security] Patch libtiff for CVE-2025-9900 [HIGH] #84

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[AutoPR- Security] Patch libtiff for CVE-2025-9900 [HIGH] #84

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53 changes: 53 additions & 0 deletions SPECS/libtiff/CVE-2025-9900.patch
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Original file line number Diff line number Diff line change
@@ -0,0 +1,53 @@
From 1bac8a7a45b4882f94eeed8c0520ab66055fa403 Mon Sep 17 00:00:00 2001
From: Su Laus <[email protected]>
Date: Wed, 11 Jun 2025 19:45:19 +0000
Subject: [PATCH] tif_getimage.c: Fix buffer underflow crash for less raster
rows at TIFFReadRGBAImageOriented()

Signed-off-by: Azure Linux Security Servicing Account <[email protected]>
Upstream-reference: https://gitlab.com/libtiff/libtiff/-/commit/3e0dcf0ec651638b2bd849b2e6f3124b36890d99.patch
---
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 6fee35d..08fdd5e 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
--
2.45.4

6 changes: 5 additions & 1 deletion SPECS/libtiff/libtiff.spec
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
Summary: TIFF libraries and associated utilities.
Name: libtiff
Version: 4.6.0
Release: 8%{?dist}
Release: 9%{?dist}
License: libtiff
Vendor: Microsoft Corporation
Distribution: Azure Linux
Expand All @@ -18,6 +18,7 @@ Patch6: CVE-2025-8177.patch
Patch7: CVE-2025-8176.patch
Patch8: CVE-2025-8851.patch
Patch9: CVE-2025-9165.patch
Patch10: CVE-2025-9900.patch

BuildRequires: autoconf
BuildRequires: automake
Expand Down Expand Up @@ -74,6 +75,9 @@ make %{?_smp_mflags} -k check
%exclude %{_docdir}/tiff-%{version}/LICENSE.md

%changelog
* Mon Sep 29 2025 Azure Linux Security Servicing Account <[email protected]> - 4.6.0-9
- Patch for CVE-2025-9900

* Thu Aug 21 2025 Azure Linux Security Servicing Account <[email protected]> - 4.6.0-8
- Patch for CVE-2025-9165, CVE-2025-8851

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