[pkg-gnupg-maint] Bug#1074127: gnupg2: write_status_text_and_buffer fails to escape some non-printable characters

[Andreas Metzler]

Control:

forwarded -1 https://dev.gnupg.org/T7176

On 2024-06-23 Baptiste Beauplat <lyknode at debian.org> wrote:
> Source: gnupg2
> Severity: important
> Tags: patch upstream
> X-Debbugs-Cc: lyknode at debian.org

> Dear maintainer,

> The check for escaping characters in `write_status_text_and_buffer` is
> written in  `g10/cpr.c` as:

> ```c
> 333           if (*s == '%' || *(const byte*)s <= lower_limit
> 334               || *(const byte*)s == 127 )
> ```

> Except `byte` is defined as an unsigned char, with non-printable values
> exceeding 127.

> Therefor the check should be `>= 127` and not `== 127`.
[...]

Thank you, I have forwarded this to the upstream tracker.

cu Andreas
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