[<prev] [next>] [day] [month] [year] [list]
Message-ID: <CACsi250wmYb_CynSUb_JXgtrZfKU5mVt=FKxvGqCV-fqwxq=HA@mail.gmail.com>
Date: Thu, 13 Jul 2017 08:01:53 -0500
From: William A Rowe Jr <wrowe@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2017-9788: Uninitialized memory reflection in mod_auth_digest
CVE-2017-9788: Uninitialized memory reflection in mod_auth_digest
Severity: Important
Vendor: The Apache Software Foundation
Versions Affected:
all versions through 2.2.33 and 2.4.26
Description:
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
Mitigation:
All users of httpd should upgrade to 2.4.27 (or minimally
2.2.34, which will receive no further security releases.)
Alternately, the administrator could configure httpd to
reject requests with a header matching a complex regular
expression identifing where = character does not occur
in the first key=value pair, as in the following syntax;
[Proxy-]Authorization: Digest key[,key=value]
Credit:
The Apache HTTP Server security team would like to thank Robert Święcki
for reporting this issue.
References:
https://httpd.apache.org/security_report.html
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
