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Information Exposure Affecting httpd-devel package, versions <0:2.2.34-1.12.amzn1

Severity

 Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
47.06% (98th percentile)

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  • Snyk IDSNYK-AMZN201803-HTTPDDEVEL-1708274
  • published27 Sept 2021
  • disclosed13 Jul 2017
Report a new vulnerability Found a mistake?

Introduced: 13 Jul 2017

CVE-2017-9788  (opens in a new tab)
CWE-200  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 httpd-devel to version 0:2.2.34-1.12.amzn1 or higher.
This issue was patched in ALAS-2017-892.

NVD Description

Note: Versions mentioned in the description apply only to the upstream httpd-devel package and not the httpd-devel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 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