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From: Marc Deslauriers
Reply-To: Ubuntu Security
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <7a5f5e05-6822-270f-2ab5-83c33cba3a14@canonical.com>
Subject: [USN-3627-1] Apache HTTP Server vulnerabilities
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==========================================================================
Ubuntu Security Notice USN-3627-1
April 19, 2018
apache2 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in the Apache HTTP Server.
Software Description:
- apache2: Apache HTTP server
Details:
Alex Nichols and Jakob Hirsch discovered that the Apache HTTP Server
mod_authnz_ldap module incorrectly handled missing charset encoding
headers. A remote attacker could possibly use this issue to cause the
server to crash, resulting in a denial of service. (CVE-2017-15710)
Elar Lang discovered that the Apache HTTP Server incorrectly handled
certain characters specified in . A remote attacker could
possibly use this issue to upload certain files, contrary to expectations.
(CVE-2017-15715)
It was discovered that the Apache HTTP Server mod_session module
incorrectly handled certain headers. A remote attacker could possibly use
this issue to influence session data. (CVE-2018-1283)
Robert Swiecki discovered that the Apache HTTP Server incorrectly handled
certain requests. A remote attacker could possibly use this issue to cause
the server to crash, leading to a denial of service. (CVE-2018-1301)
Robert Swiecki discovered that the Apache HTTP Server mod_cache_socache
module incorrectly handled certain headers. A remote attacker could
possibly use this issue to cause the server to crash, leading to a denial
of service. (CVE-2018-1303)
Nicolas Daniels discovered that the Apache HTTP Server incorrectly
generated the nonce when creating HTTP Digest authentication challenges.
A remote attacker could possibly use this issue to replay HTTP requests
across a cluster of servers. (CVE-2018-1312)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 17.10:
apache2-bin 2.4.27-2ubuntu4.1
Ubuntu 16.04 LTS:
apache2-bin 2.4.18-2ubuntu3.8
Ubuntu 14.04 LTS:
apache2-bin 2.4.7-1ubuntu4.20
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3627-1
CVE-2017-15710, CVE-2017-15715, CVE-2018-1283, CVE-2018-1301,
CVE-2018-1303, CVE-2018-1312
Package Information:
https://launchpad.net/ubuntu/+source/apache2/2.4.27-2ubuntu4.1
https://launchpad.net/ubuntu/+source/apache2/2.4.18-2ubuntu3.8
https://launchpad.net/ubuntu/+source/apache2/2.4.7-1ubuntu4.20
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