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.
References
Link Resource
https://github.com/openwrt/openwrt/commits/master Patch Third Party Advisory
https://openwrt.org/advisory/2020-01-13-1 Vendor Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2020-03-16T17:17:19

Updated: 2020-03-16T17:17:19

Reserved: 2019-12-23T00:00:00


Link: CVE-2019-19945

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2020-03-16T18:15:12.213

Modified: 2023-05-24T15:01:02.763


Link: CVE-2019-19945

JSON object: View

cve-icon Redhat Information

No data.