Buffer overflow in Embedthis Goahead
CVE-2019-19240
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.015 (73.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/embedthis/goahead/issues/290 (Third Party Advisory)
- github.com/embedthis/goahead/issues/289 (Exploit, Third Party Advisory)
- github.com/embedthis/goahead/releases/tag/v5.0.1 (Release Notes)
Frequently asked questions
- What is CVE-2019-19240?
- CVE-2019-19240 is a medium-severity vulnerability in Embedthis Goahead, classified under Out-of-bounds Write. CVSS score: 5.3/10. Published 2019-11-22.
- How severe is CVE-2019-19240?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2019-19240 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.