CVE Database›Document archive›CVE-2017-9788

CVE-2017-9788

httpd: Uninitialized memory reflection in mod_auth_digest

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Severity

Important

Red Hat Product Security

4.8

CVSS 3.0

Review impact separately from score.

Published · July 11, 2017

Updated · September 21, 2026

Description

It was discovered that the httpd's mod_auth_digest module did not properly initialize memory before using it when processing certain headers related to digest authentication. A remote attacker could possibly use this flaw to disclose potentially sensitive information or cause httpd child process to crash by sending specially crafted requests to a server.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

If you do not use digest authentication, do not load the "auth_digest_module".

For example, on RHEL 7, this can be done by commenting out or removing the "LoadModule auth_digest_module modules/mod_auth_digest.so" line within the /etc/httpd/conf.modules.d/00-base.conf configuration file and restarting the service.

You can then use the "httpd -t -D DUMP_MODULES" command to verify that the module is no longer loaded.

CVSS / CWE

CVSS 3.0 · 4.8
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

CWE-456 · Missing Initialization of a Variable