diff options
| -rw-r--r-- | libpiano/src/xml.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libpiano/src/xml.c b/libpiano/src/xml.c index 8e8fb2a..185002d 100644 --- a/libpiano/src/xml.c +++ b/libpiano/src/xml.c @@ -240,7 +240,10 @@ static void PianoXmlParsePlaylistCb (const char *key, const ezxml_t value, char *urlTail = NULL, *urlTailCrypted = &valueStr[valueStrN - urlTailN]; - if ((urlTail = PianoDecryptString (urlTailCrypted)) != NULL) { + /* don't try to decrypt if string is too short (=> invalid memory + * reads/writes) */ + if (valueStrN > urlTailN && + (urlTail = PianoDecryptString (urlTailCrypted)) != NULL) { if ((song->audioUrl = calloc (valueStrN + 1, sizeof (*song->audioUrl))) != NULL) { memcpy (song->audioUrl, valueStr, valueStrN - urlTailN); |