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Heap-buffer-overflow WRITE 

fixes https://oss-fuzz.com/testcase-detail/5088104168554496
This commit is contained in:
Frank Morgner 2020-07-30 02:21:17 +02:00
parent 9ffb9bae63
commit 6903aebfdd
1 changed files with 7 additions and 3 deletions
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10
src/libopensc/pkcs15-oberthur.c
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@ -271,11 +271,15 @@ sc_oberthur_read_file(struct sc_pkcs15_card *p15card, const char *in_path,
rv = sc_read_binary(card, 0, *out, sz, 0);
}
else {
int rec;
int offs = 0;
int rec_len = file->record_length;
size_t rec;
size_t offs = 0;
size_t rec_len = file->record_length;
for (rec = 1; ; rec++) {
if (rec > file->record_count) {
rv = 0;
break;
}
rv = sc_read_record(card, rec, *out + offs + 2, rec_len, SC_RECORD_BY_REC_NR);
if (rv == SC_ERROR_RECORD_NOT_FOUND) {
rv = 0;