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HTTP Request Smuggling The advisory has been revoked - it doesn't affect any version of package apache2  (opens in a new tab)

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EPSS
60.27% (100th percentile)

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  • Snyk IDSNYK-UBUNTU1404-APACHE2-1623767
  • published16 Jun 2021
  • disclosed10 Jun 2021
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Introduced: 10 Jun 2021

CVE-2019-17567  (opens in a new tab)
CWE-444  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:14.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apache2 package and not the apache2 package as distributed by Ubuntu.

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.

References