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python3-pillow: Fix CVE-2023-50447

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Pillow through 10.1.0 allows PIL.ImageMath.eval Arbitrary Code
Execution via the environment parameter, a different vulnerability
than CVE-2022-22817 (which was about the expression parameter).

References:
https://security-tracker.debian.org/tracker/CVE-2023-50447
https://github.com/python-pillow/Pillow/blob/10.2.0/CHANGES.rst

Signed-off-by: Rahul Janani Pandi <RahulJanani.Pandi@windriver.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
This commit is contained in:
Rahul Janani Pandi
2024-04-08 09:42:28 +00:00
committed by Armin Kuster
parent 0fffd4d422
commit 717462f811
5 changed files with 186 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
meta-python/recipes-devtools/python/python3-pillow/CVE-2023-50447-1.patch Normal file
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@@ -0,0 +1,29 @@
From 3652f431c2d8b9c10bf20b70f284d300d12e814a
From: Andrew Murray <radarhere@users.noreply.github.com>
Date: Sat Oct 28 14:22:39 2023 +1100
Subject: [PATCH] python3-pillow: Simplified code
CVE: CVE-2023-50447
Upstream-Status: Backport [https://github.com/python-pillow/Pillow/commit/3652f431c2d8b9c10bf20b70f284d300d12e814a]
Signed-off-by: Rahul Janani Pandi <RahulJanani.Pandi@windriver.com>
---
src/PIL/ImageMath.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/PIL/ImageMath.py b/src/PIL/ImageMath.py
index ac7d36b69..71872a3fb 100644
--- a/src/PIL/ImageMath.py
+++ b/src/PIL/ImageMath.py
@@ -239,7 +239,7 @@ def eval(expression, _dict={}, **kw):
args = ops.copy()
args.update(_dict)
args.update(kw)
- for k, v in list(args.items()):
+ for k, v in args.items():
if hasattr(v, "im"):
args[k] = _Operand(v)
--
2.40.0