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Fix: buffer overflow bug

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Found by static analyzer svace
Static analyzer message: Array 'token' of size 65536 bytes passed to
function 'rrinternal_parse_rdata' at str2wire.c:679 by passing as 2nd
parameter to function 'rrinternal_parse_rdata' at str2wire.c:775, where
it is accessed by unacceptable index. This may lead to buffer overflow.

on-behalf-of: @ideco-team <github@ideco.ru>
This commit is contained in:
Shchelkunov Artem
2021-08-20 19:46:01 +05:00
parent 2315fc9d9b
commit 0b362e3a4d
1 changed files with 1 additions and 1 deletions
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sldns/str2wire.c
+1 -1
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@@ -601,7 +601,7 @@ sldns_affix_token(sldns_buffer* strbuf, char* token, size_t* token_len,
size_t addstrlen = 0;
/* add space */
if(addlen < 1) return 0;
if(addlen < 2) return 0;
token[*token_strlen] = ' ';
token[++(*token_strlen)] = 0;