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Fix for CVE-2022-45198: Improper Handling of Highly Compressed GIF Data
Backport from 884437f8a2
Signed-off-by: Shubham Kulkarni <skulkarni@mvista.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
27 lines
1.0 KiB
Diff
27 lines
1.0 KiB
Diff
From 7df88fc2319852ace202a650703d631200080e3b Mon Sep 17 00:00:00 2001
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From: Andrew Murray <radarhere@users.noreply.github.com>
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Date: Thu, 30 Jun 2022 12:47:35 +1000
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Subject: [PATCH] Added GIF decompression bomb check
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Upstream-Status: Backport [https://github.com/python-pillow/Pillow/commit/884437f8a2b953a0abd2a3b130a87fcfb438092e]
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CVE: CVE-2022-45198
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Signed-off-by: Shubham Kulkarni <skulkarni@mvista.com>
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---
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src/PIL/GifImagePlugin.py | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/src/PIL/GifImagePlugin.py b/src/PIL/GifImagePlugin.py
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index 9d8e96f..c477fdd 100644
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--- a/src/PIL/GifImagePlugin.py
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+++ b/src/PIL/GifImagePlugin.py
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@@ -238,6 +238,7 @@ class GifImageFile(ImageFile.ImageFile):
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x1, y1 = x0 + i16(s[4:]), y0 + i16(s[6:])
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if x1 > self.size[0] or y1 > self.size[1]:
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self._size = max(x1, self.size[0]), max(y1, self.size[1])
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+ Image._decompression_bomb_check(self._size)
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self.dispose_extent = x0, y0, x1, y1
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flags = i8(s[8])
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--
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2.7.4
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