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Missing Initialization of a Variable Affecting httpd package, versions <0:2.4.6-67.el7_4.2

Severity

 Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
46.78% (98th percentile)

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  • Snyk IDSNYK-RHEL7-HTTPD-4714633
  • published26 Jul 2021
  • disclosed11 Jul 2017
Report a new vulnerability Found a mistake?

Introduced: 11 Jul 2017

CVE-2017-9788  (opens in a new tab)
CWE-456  (opens in a new tab)

How to fix?

Upgrade RHEL:7 httpd to version 0:2.4.6-67.el7_4.2 or higher.
This issue was patched in RHSA-2017:2479.

NVD Description

Note: Versions mentioned in the description apply only to the upstream httpd package and not the httpd package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

In Apache httpd before 2.2.34 and 2.4.x before 2.4.27, the value placeholder in [Proxy-]Authorization headers of type 'Digest' was not initialized or reset before or between successive key=value assignments by mod_auth_digest. Providing an initial key with no '=' assignment could reflect the stale value of uninitialized pool memory used by the prior request, leading to leakage of potentially confidential information, and a segfault in other cases resulting in denial of service.

References