CVE-2019-19945

High

Description

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductOpenwrt
PublishedMar 16, 2020
First seenMar 16, 2020

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
openwrt openwrt18.06.0 ≤ v ≤ 18.06.5, 19.07.0—

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