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fixed length checking in oberthur profile 

fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25943
This commit is contained in:
Frank Morgner 2020-09-30 23:37:09 +02:00
parent 732ed77ad6
commit 3ff059a74b
1 changed files with 2 additions and 2 deletions
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4
src/libopensc/pkcs15-oberthur.c
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@ -400,7 +400,7 @@ sc_oberthur_parse_containers (struct sc_pkcs15_card *p15card,
Containers = next;
}
for (offs=0; offs < len;) {
for (offs=0; offs + 2 + 2+2+2 + 2+2+2 + 2+36 <= len;) {
struct container *cont;
unsigned char *ptr = buff + offs + 2;
@ -451,7 +451,7 @@ sc_oberthur_parse_publicinfo (struct sc_pkcs15_card *p15card,
int rv;
LOG_FUNC_CALLED(ctx);
for (ii=0; ii<len; ii+=5) {
for (ii=0; ii+5<=len; ii+=5) {
unsigned int file_id, size;
if(*(buff+ii) != 0xFF)