Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2019.1129
apache2 security update
4 April 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: apache2
Publisher: Debian
Operating System: Debian GNU/Linux 9
Debian GNU/Linux 8
Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Root Compromise -- Existing Account
Access Privileged Data -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-0220 CVE-2019-0217 CVE-2019-0211
CVE-2019-0196 CVE-2018-17199 CVE-2018-17189
Original Bulletin:
http://www.debian.org/security/2019/dsa-4422
https://lists.debian.org/debian-lts-announce/2019/04/msg00008.html
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running apache2 check for an updated version of the software for
their operating system.
This bulletin contains two (2) advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
- - -------------------------------------------------------------------------
Debian Security Advisory DSA-4422-1 security@debian.org
https://www.debian.org/security/ Stefan Fritsch
April 03, 2019 https://www.debian.org/security/faq
- - -------------------------------------------------------------------------
Package : apache2
CVE ID : CVE-2018-17189 CVE-2018-17199 CVE-2019-0196 CVE-2019-0211
CVE-2019-0217 CVE-2019-0220
Debian Bug : 920302 920303
Several vulnerabilities have been found in the Apache HTTP server.
CVE-2018-17189
Gal Goldshtein of F5 Networks discovered a denial of service
vulnerability in mod_http2. By sending malformed requests, the
http/2 stream for that request unnecessarily occupied a server
thread cleaning up incoming data, resulting in denial of service.
CVE-2018-17199
Diego Angulo from ImExHS discovered that mod_session_cookie does not
respect expiry time.
CVE-2019-0196
Craig Young discovered that the http/2 request handling in mod_http2
could be made to access freed memory in string comparison when
determining the method of a request and thus process the request
incorrectly.
CVE-2019-0211
Charles Fol discovered a privilege escalation from the
less-privileged child process to the parent process running as root.
CVE-2019-0217
A race condition in mod_auth_digest when running in a threaded
server could allow a user with valid credentials to authenticate
using another username, bypassing configured access control
restrictions. The issue was discovered by Simon Kappel.
CVE-2019-0220
Bernhard Lorenz of Alpha Strike Labs GmbH reported that URL
normalizations were inconsistently handled. When the path component
of a request URL contains multiple consecutive slashes ('/'),
directives such as LocationMatch and RewriteRule must account for
duplicates in regular expressions while other aspects of the servers
processing will implicitly collapse them.
For the stable distribution (stretch), these problems have been fixed in
version 2.4.25-3+deb9u7.
This update also contains bug fixes that were scheduled for inclusion in the
next stable point release. This includes a fix for a regression caused by a
security fix in version 2.4.25-3+deb9u6.
We recommend that you upgrade your apache2 packages.
For the detailed security status of apache2 please refer to its security
tracker page at: https://security-tracker.debian.org/tracker/apache2
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
- ------------------------------------------------------------------------------
Package : apache2
Version : 2.4.10-10+deb8u14
CVE ID : CVE-2019-0217 CVE-2019-0220
Several vulnerabilities have been found in the Apache HTTP server.
CVE-2019-0217
A race condition in mod_auth_digest when running in a threaded
server could allow a user with valid credentials to authenticate
using another username, bypassing configured access control
restrictions. The issue was discovered by Simon Kappel.
CVE-2019-0220
Bernhard Lorenz of Alpha Strike Labs GmbH reported that URL
normalizations were inconsistently handled. When the path component
of a request URL contains multiple consecutive slashes ('/'),
directives such as LocationMatch and RewriteRule must account for
duplicates in regular expressions while other aspects of the servers
processing will implicitly collapse them.
For Debian 8 "Jessie", these problems have been fixed in version
2.4.10-10+deb8u14.
We recommend that you upgrade your apache2 packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=d1Ws
-----END PGP SIGNATURE-----