CVE-2019-19240

low-risk
Published 2019-11-22

Embedthis GoAhead before 5.0.1 mishandles redirected HTTP requests with a large Host header. The GoAhead WebsRedirect uses a static host buffer that has a limited length and can overflow. This can cause a copy of the Host header to fail, leaving that buffer uninitialized, which may leak uninitialized data in a response.

Do I need to act?

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0.53% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Embedthis

References (6)

Exploit https://github.com/embedthis/goahead/issues/289
Third Party Advisory https://github.com/embedthis/goahead/issues/290
Release Notes https://github.com/embedthis/goahead/releases/tag/v5.0.1
Exploit https://github.com/embedthis/goahead/issues/289
Third Party Advisory https://github.com/embedthis/goahead/issues/290
Release Notes https://github.com/embedthis/goahead/releases/tag/v5.0.1
28
/ 100
low-risk
Severity 21/34 · High
Exploitability 2/34 · Minimal
Exposure 5/34 · Minimal