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ghostscript: patch CVE-2025-59800
Pick commit mentioned in the NVD report. (From OE-Core rev: 5109fd6675b6782f10f86f774fe54b6ccecee415) Signed-off-by: Peter Marko <peter.marko@siemens.com> Signed-off-by: Steve Sakoman <steve@sakoman.com>
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Steve Sakoman
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@@ -0,0 +1,36 @@
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From 176cf0188a2294bc307b8caec876f39412e58350 Mon Sep 17 00:00:00 2001
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From: Ken Sharp <Ken.Sharp@artifex.com>
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Date: Tue, 1 Jul 2025 10:31:17 +0100
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Subject: [PATCH] PDF OCR 8 bit device - avoid overflow
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Bug 708602 "Heap overflow in ocr_line8"
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Make sure the calculation of the required raster size does not overflow
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an int.
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CVE: CVE-2025-59800
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Upstream-Status: Backport [https://github.com/ArtifexSoftware/ghostpdl/commit/176cf0188a2294bc307b8caec876f39412e58350]
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Signed-off-by: Peter Marko <peter.marko@siemens.com>
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---
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devices/gdevpdfocr.c | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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diff --git a/devices/gdevpdfocr.c b/devices/gdevpdfocr.c
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index f27dc11db..6362f4104 100644
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--- a/devices/gdevpdfocr.c
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+++ b/devices/gdevpdfocr.c
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@@ -521,9 +521,12 @@ ocr_line32(gx_device_pdf_image *dev, void *row)
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static int
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ocr_begin_page(gx_device_pdf_image *dev, int w, int h, int bpp)
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{
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- int raster = (w+3)&~3;
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+ int64_t raster = (w + 3) & ~3;
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- dev->ocr.data = gs_alloc_bytes(dev->memory, raster * h, "ocr_begin_page");
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+ raster = raster * (int64_t)h;
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+ if (raster < 0 || raster > max_size_t)
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+ return gs_note_error(gs_error_VMerror);
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+ dev->ocr.data = gs_alloc_bytes(dev->memory, raster, "ocr_begin_page");
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if (dev->ocr.data == NULL)
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return_error(gs_error_VMerror);
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dev->ocr.w = w;
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@@ -78,6 +78,7 @@ SRC_URI_BASE = "https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/d
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file://CVE-2025-48708.patch \
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file://CVE-2025-59798.patch \
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file://CVE-2025-59799.patch \
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file://CVE-2025-59800.patch \
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"
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SRC_URI = "${SRC_URI_BASE} \
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