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don't crash on malformed CAPABILITY responses

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amends 95a83c822.

this problem was found by Lukas Braun <koomi@moshbit.net> using a
fuzzer.
This commit is contained in:
Oswald Buddenhagen 2021-04-14 16:52:31 +02:00
parent d8feb67dae
commit a86e6f8c7c
1 changed files with 1 additions and 1 deletions
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2
src/drv_imap.c
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@ -1273,7 +1273,7 @@ parse_response_code( imap_store_t *ctx, imap_cmd_t *cmd, char *s )
return RESP_CANCEL;
}
} else if (!strcmp( "CAPABILITY", arg )) {
if (!(p = strchr( s, ']' ))) {
if (!s || !(p = strchr( s, ']' ))) {
error( "IMAP error: malformed CAPABILITY status\n" );
return RESP_CANCEL;
}