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core: fix buffer overflow in function eval_string_range_chars

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This commit is contained in:
Sébastien Helleu
2025-05-10 21:38:26 +02:00
parent 09917a807b
commit 3db2f71112
2 changed files with 8 additions and 0 deletions
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CHANGELOG.md
+1
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@@ -10,6 +10,7 @@
- core: fix buffer overflow in function util_parse_time
- core: fix buffer overflow in function eval_syntax_highlight_colorize
- core: fix buffer overflow in function eval_string_base_encode
- core: fix buffer overflow in function eval_string_range_chars
- core: fix memory leak in function util_parse_delay
## Version 4.6.2 (2025-04-18)
src/core/core-eval.c
+7
View File
@@ -300,6 +300,9 @@ eval_string_range_chars (const char *range)
string = NULL;
result = NULL;
if (!range || !range[0])
goto end;
for (i = 0; eval_range_chars[i][0]; i++)
{
if (strcmp (range, eval_range_chars[i][0]) == 0)
@@ -309,11 +312,15 @@ eval_string_range_chars (const char *range)
char1 = utf8_char_int (range);
/* next char must be '-' */
if (!range[0])
goto end;
ptr_char = utf8_next_char (range);
if (!ptr_char || !ptr_char[0] || (ptr_char[0] != '-'))
goto end;
/* next char is the char2 */
if (!range[0])
goto end;
ptr_char = utf8_next_char (ptr_char);
if (!ptr_char || !ptr_char[0])
goto end;