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CVE-2017-9788

Published: 13 July 2017

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.

Priority

Medium

CVSS 3 base score: 9.1

Status

Package Release Status
apache2
Launchpad, Ubuntu, Debian
Upstream
Released (2.4.27)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (2.4.18-2ubuntu3.4)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (2.4.7-1ubuntu4.17)
Patches:
Upstream: https://github.com/apache/httpd/commit/549ba6a39aa0df78a610025f74f3a06503a70f67 (2.4)
Upstream: https://svn.apache.org/viewvc?view=revision&revision=1800955