(Red Hat Issues Fix) Squid Flaw in SSL-Bump Lets Remote Users Deny Service
SecurityTracker Alert ID: 1030324|
SecurityTracker URL: http://securitytracker.com/id/1030324
(Links to External Site)
Date: Jun 4 2014
Denial of service via network|
Fix Available: Yes Vendor Confirmed: Yes |
Version(s): 3.1 to 3.3.11, 3.4 to 3.4.3|
A vulnerability was reported in Squid. A remote user can cause denial of service conditions.|
A remote user can send HTTPS requests to trigger a flaw in SSL-Bump and cause the target service to crash.
Specially crafted requests are not required to trigger this vulnerability.
Mathias Fischer and Fabian Hugelshofer from Open Systems AG reported this vulnerability.
A remote user can cause denial of service conditions.|
Red Hat has issued a fix.|
The Red Hat advisory is available at:
Vendor URL: www.squid-cache.org/Advisories/SQUID-2014_1.txt (Links to External Site)
|Underlying OS: Linux (Red Hat Enterprise)|
|Underlying OS Comments: 6|
This archive entry is a follow-up to the message listed below.|
Source Message Contents
Subject: [RHSA-2014:0597-01] Moderate: squid security update|
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Red Hat Security Advisory
Synopsis: Moderate: squid security update
Advisory ID: RHSA-2014:0597-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0597.html
Issue date: 2014-06-03
CVE Names: CVE-2014-0128
Updated squid packages that fix one security issue are now available for
Red Hat Enterprise Linux 6.
The Red Hat Security Response Team has rated this update as having Moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Squid is a high-performance proxy caching server for web clients,
supporting FTP, Gopher, and HTTP data objects.
A denial of service flaw was found in the way Squid processed certain HTTPS
requests when the SSL Bump feature was enabled. A remote attacker could
send specially crafted requests that could cause Squid to crash.
Red Hat would like to thank the Squid project for reporting this issue.
Upstream acknowledges Mathias Fischer and Fabian Hugelshofer from Open
Systems AG as the original reporters.
All squid users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing this
update, the squid service will be restarted automatically.
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
5. Bugs fixed (https://bugzilla.redhat.com/):
1074870 - CVE-2014-0128 squid: denial of service when using SSL-Bump
6. Package List:
Red Hat Enterprise Linux Server (v. 6):
Red Hat Enterprise Linux Workstation (v. 6):
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
The Red Hat security contact is <email@example.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2014 Red Hat, Inc.
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