URL:
<https://savannah.gnu.org/bugs/?62097>
Summary: UTF-8 should be limited to valid range
Project: GNU Screen
Submitted by: drougge
Submitted on: Tue 22 Feb 2022 07:24:08 PM UTC
Category: Program Logic
Severity: 3 - Normal
Priority: 5 - Normal
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Release: None
Discussion Lock: Any
Fixed Release: None
Planned Release: None
Work Required: None
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Details:
The current UTF-8 encoding can emit invalid UTF-8 sequences for out of range
unicode values. I have attached patches for both V4 and V5.
The unpatched V4 code also contains clearly incorrect logic for overlong UTF-8
sequences that modern compilers will warn about (which I have removed).
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File Attachments:
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Date: Tue 22 Feb 2022 07:24:08 PM UTC Name:
0001-UTF-8-Replace-out-of-range-unicode-with-U-FFFD.v4.patch Size: 2KiB By:
drougge
<http://savannah.gnu.org/bugs/download.php?file_id=52904>
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Date: Tue 22 Feb 2022 07:24:08 PM UTC Name:
0001-UTF-8-Replace-out-of-range-unicode-with-U-FFFD.v5.patch Size: 1KiB By:
drougge
<http://savannah.gnu.org/bugs/download.php?file_id=52905>
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