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From: Daniel Ruggeri <>
Subject: CVE-2018-17199: mod_session_cookie does not respect expiry time

CVE-2018-17199: mod_session_cookie does not respect expiry time

Severity: low

Vendor: The Apache Software Foundation

Versions Affected:
httpd 2.4.0 to 2.4.37

In Apache HTTP Server 2.4 release 2.4.37 and prior, mod_session
checks the session expiry time before decoding the session.
This causes session expiry time to be ignored for
mod_session_cookie sessions since the expiry time is loaded
when the session is decoded.

All httpd users deploying mod_session should upgrade to 2.4.38 or later.

The issue was discovered by Diego Angulo from ImExHS.


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