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CVE-2017-9798

Description

Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. This affects the Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27. The attacker sends an unauthenticated OPTIONS HTTP request when attempting to read secret data. This is a use-after-free issue and thus secret data is not always sent, and the specific data depends on many factors including configuration. Exploitation with .htaccess can be blocked with a patch to the ap_limit_section function in server/core.c.


Affected Package


OS OS Version Package Name Package Version
Debian 12 apache2 2.4.55-1
Debian 11 apache2 2.4.54-1~deb11u1
Debian 10 apache2 2.4.38-3+deb10u8
Debian 999 apache2 2.4.55-1

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