Exploit the possiblities

Red Hat Security Advisory 2017-2538-01

Red Hat Security Advisory 2017-2538-01
Posted Aug 28, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-2538-01 - Nginx is a web server and a reverse proxy server for HTTP, SMTP, POP3 and IMAP protocols, with a strong focus on high concurrency, performance and low memory usage. Security Fix: A flaw within the processing of ranged HTTP requests has been discovered in the range filter module of nginx. A remote attacker could possibly exploit this flaw to disclose parts of the cache file header, or, if used in combination with third party modules, disclose potentially sensitive memory by sending specially crafted HTTP requests.

tags | advisory, remote, web, imap, protocol
systems | linux, redhat
advisories | CVE-2017-7529
MD5 | bda036ceec782c1988229b248613f104

Red Hat Security Advisory 2017-2538-01

Change Mirror Download
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=====================================================================
Red Hat Security Advisory

Synopsis: Low: rh-nginx110-nginx security update
Advisory ID: RHSA-2017:2538-01
Product: Red Hat Software Collections
Advisory URL: https://access.redhat.com/errata/RHSA-2017:2538
Issue date: 2017-08-28
CVE Names: CVE-2017-7529
=====================================================================

1. Summary:

An update for rh-nginx110-nginx is now available for Red Hat Software
Collections.

Red Hat Product Security has rated this update as having a security impact
of Low. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) - x86_64
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) - x86_64
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) - x86_64
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3) - x86_64
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) - x86_64
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) - x86_64

3. Description:

Nginx is a web server and a reverse proxy server for HTTP, SMTP, POP3 and
IMAP protocols, with a strong focus on high concurrency, performance and
low memory usage.

Security Fix(es):

* A flaw within the processing of ranged HTTP requests has been discovered
in the range filter module of nginx. A remote attacker could possibly
exploit this flaw to disclose parts of the cache file header, or, if used
in combination with third party modules, disclose potentially sensitive
memory by sending specially crafted HTTP requests. (CVE-2017-7529)

Red Hat would like to thank the Nginx project for reporting this issue.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1468584 - CVE-2017-7529 nginx: Integer overflow in nginx range filter module leading to memory disclosure

6. Package List:

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6):

Source:
rh-nginx110-nginx-1.10.2-8.el6.src.rpm

x86_64:
rh-nginx110-nginx-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-debuginfo-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-mod-http-image-filter-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-mod-http-perl-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-mod-http-xslt-filter-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-mod-mail-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-mod-stream-1.10.2-8.el6.x86_64.rpm

Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7):

Source:
rh-nginx110-nginx-1.10.2-8.el6.src.rpm

x86_64:
rh-nginx110-nginx-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-debuginfo-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-mod-http-image-filter-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-mod-http-perl-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-mod-http-xslt-filter-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-mod-mail-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-mod-stream-1.10.2-8.el6.x86_64.rpm

Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6):

Source:
rh-nginx110-nginx-1.10.2-8.el6.src.rpm

x86_64:
rh-nginx110-nginx-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-debuginfo-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-mod-http-image-filter-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-mod-http-perl-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-mod-http-xslt-filter-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-mod-mail-1.10.2-8.el6.x86_64.rpm
rh-nginx110-nginx-mod-stream-1.10.2-8.el6.x86_64.rpm

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7):

Source:
rh-nginx110-nginx-1.10.2-8.el7.src.rpm

x86_64:
rh-nginx110-nginx-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-debuginfo-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-mod-http-image-filter-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-mod-http-perl-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-mod-http-xslt-filter-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-mod-mail-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-mod-stream-1.10.2-8.el7.x86_64.rpm

Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3):

Source:
rh-nginx110-nginx-1.10.2-8.el7.src.rpm

x86_64:
rh-nginx110-nginx-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-debuginfo-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-mod-http-image-filter-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-mod-http-perl-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-mod-http-xslt-filter-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-mod-mail-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-mod-stream-1.10.2-8.el7.x86_64.rpm

Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7):

Source:
rh-nginx110-nginx-1.10.2-8.el7.src.rpm

x86_64:
rh-nginx110-nginx-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-debuginfo-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-mod-http-image-filter-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-mod-http-perl-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-mod-http-xslt-filter-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-mod-mail-1.10.2-8.el7.x86_64.rpm
rh-nginx110-nginx-mod-stream-1.10.2-8.el7.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2017-7529
https://access.redhat.com/security/updates/classification/#low

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2017 Red Hat, Inc.
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