UBUNTU-CVE-2019-17567
Advisory lineage Upstream: 1 Downstream: 0
Upstream
Published: 10 Jun 2021, 07:15
Last modified:29 May 2026, 12:00
Vulnerability Summary
Overall Risk (default)
low
21/100 CVSS Score
5.3 MEDIUM
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
10 Jun 2021, 07:15
Published
Vulnerability first disclosed
29 May 2026, 12:00
Last Modified
Vulnerability information updated
Description
Apache HTTP Server versions 2.4.6 to 2.4.46 mod_proxy_wstunnel configured on an URL that is not necessarily Upgraded by the origin server was tunneling the whole connection regardless, thus allowing for subsequent requests on the same connection to pass through with no HTTP validation, authentication or authorization possibly configured.
CVSS Metrics
- v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Systems
- ubuntu•apache2
all
References (5)
- https://ubuntu.com/security/CVE-2019-17567
- https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2019-17567
- https://lists.apache.org/thread.html/r90f693a5c9fb75550ef1412436d5e682a5f845beb427fa6f23419a3c@%3Cannounce.httpd.apache.org%3E
- http://www.openwall.com/lists/oss-security/2021/06/10/2
- https://www.cve.org/CVERecord?id=CVE-2019-17567