44 lines
1.2 KiB
Diff
44 lines
1.2 KiB
Diff
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From c7c5f7f272659981f4c6bbfa212257945c86d17c Mon Sep 17 00:00:00 2001
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From: shixuantong <shixuantong@h-partners.com>
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Date: Sat, 14 May 2022 16:50:02 +0800
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Subject: [PATCH] fix CVE-2015-20107
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---
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Lib/mailcap.py | 6 ++++--
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1 file changed, 4 insertions(+), 2 deletions(-)
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diff --git a/Lib/mailcap.py b/Lib/mailcap.py
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index bd0fc09..1ad3dd5 100644
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--- a/Lib/mailcap.py
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+++ b/Lib/mailcap.py
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@@ -2,6 +2,7 @@
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import os
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import warnings
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+from shlex import quote
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__all__ = ["getcaps","findmatch"]
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@@ -203,8 +204,6 @@ def subst(field, MIMEtype, filename, plist=[]):
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c = field[i]; i = i+1
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if c == '%':
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res = res + c
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- elif c == 's':
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- res = res + filename
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elif c == 't':
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res = res + MIMEtype
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elif c == '{':
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@@ -219,6 +218,9 @@ def subst(field, MIMEtype, filename, plist=[]):
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# %F == list of alternating type and filename for parts
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else:
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res = res + '%' + c
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+ res = res.replace("'%s'", quote(filename))
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+ res = res.replace('"%s"',quote(filename))
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+ res = res.replace('%s',quote(filename))
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return res
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def findparam(name, plist):
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--
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1.8.3.1
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