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rtpdec_mpeg4: validate fmtp fields

This commit is contained in:
Luca Barbato 2016-08-19 18:35:33 +02:00
parent 46e3936fb0
commit 24130234cd
1 changed files with 14 additions and 3 deletions
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17
libavformat/rtpdec_mpeg4.c
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@ -290,11 +290,22 @@ static int parse_fmtp(AVFormatContext *s,
for (i = 0; attr_names[i].str; ++i) {
if (!av_strcasecmp(attr, attr_names[i].str)) {
if (attr_names[i].type == ATTR_NAME_TYPE_INT) {
int val = atoi(value);
if (val > 32) {
av_log(s, AV_LOG_ERROR,
"The %s field size is invalid (%d).",
attr, val);
return AVERROR_INVALIDDATA;
}
*(int *)((char *)data+
attr_names[i].offset) = atoi(value);
} else if (attr_names[i].type == ATTR_NAME_TYPE_STR)
attr_names[i].offset) = val;
} else if (attr_names[i].type == ATTR_NAME_TYPE_STR) {
char *val = av_strdup(value);
if (!val)
return AVERROR(ENOMEM);
*(char **)((char *)data+
attr_names[i].offset) = av_strdup(value);
attr_names[i].offset) = val;
}
}
}
}