CVE-2019-19945

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.97% Top 25%
Vendor Advisory openwrt.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/openwrt/openwrt/commits/master third party advisory patch
https://openwrt.org/advisory/2020-01-13-1 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-19945?
CVE-2019-19945 has been scored as a high severity vulnerability.
How to fix CVE-2019-19945?
To fix CVE-2019-19945, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-19945 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-19945 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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