Vulnerabilities > CVE-2019-19945 - Incorrect Conversion between Numeric Types vulnerability in Openwrt 19.07.0
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
uhttpd in OpenWrt through 18.06.5 and 19.x through 19.07.0-rc2 has an integer signedness error. This leads to out-of-bounds access to a heap buffer and a subsequent crash. It can be triggered with an HTTP POST request to a CGI script, specifying both "Transfer-Encoding: chunked" and a large negative Content-Length value.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 4 |