python-pillow/backport-CVE-2021-23437.patch
YangLuo b2726eab73 fix CVE-2021-23437
(cherry picked from commit 91c871c8da6cd8b745e3d165fb0cc92d5985756c)
2021-09-27 14:08:12 +08:00

43 lines
1.4 KiB
Diff

From 1dc6564eb7ee8f28fb16eeffaf3572f3e1d5aa29 Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <hugovk@users.noreply.github.com>
Date: Mon, 23 Aug 2021 19:10:49 +0300
Subject: [PATCH] Raise ValueError if color specifier is too long
Conflict:NA
Reference:https://github.com/python-pillow/Pillow/commit/1dc6564eb7ee8f28fb16eeffaf3572f3e1d5aa29
----
Tests/test_imagecolor.py | 9 +++++++++
src/PIL/ImageColor.py | 2 ++
2 files changed, 11 insertions(+)
diff --git a/Tests/test_imagecolor.py b/Tests/test_imagecolor.py
index b5d6937965..dbe8b9e957 100644
--- a/Tests/test_imagecolor.py
+++ b/Tests/test_imagecolor.py
@@ -191,3 +191,12 @@ def test_rounding_errors():
assert (255, 255) == ImageColor.getcolor("white", "LA")
assert (163, 33) == ImageColor.getcolor("rgba(0, 255, 115, 33)", "LA")
Image.new("LA", (1, 1), "white")
+
+
+def test_color_too_long():
+ # Arrange
+ color_too_long = "hsl(" + "1" * 100 + ")"
+
+ # Act / Assert
+ with pytest.raises(ValueError):
+ ImageColor.getrgb(color_too_long)
diff --git a/src/PIL/ImageColor.py b/src/PIL/ImageColor.py
index 51df440403..25f92f2c73 100644
--- a/src/PIL/ImageColor.py
+++ b/src/PIL/ImageColor.py
@@ -32,6 +32,8 @@ def getrgb(color):
:param color: A color string
:return: ``(red, green, blue[, alpha])``
"""
+ if len(color) > 100:
+ raise ValueError("color specifier is too long")
color = color.lower()
rgb = colormap.get(color, None)