[RHSA-2015:2378-01] Moderate: squid security and bug fix update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Moderate: squid security and bug fix update

Advisory ID: RHSA-2015:2378-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-2378.html

Issue date: 2015-11-19

CVE Names: CVE-2015-3455

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1. Summary:

 

Updated squid packages that fix one security issue and two bugs are now

available for Red Hat Enterprise Linux 7.

 

Red Hat Product Security 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. 7) - aarch64, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

 

3. Description:

 

Squid is a high-performance proxy caching server for web clients,

supporting FTP, Gopher, and HTTP data objects.

 

It was found that Squid configured with client-first SSL-bump did not

correctly validate X.509 server certificate host name fields. A

man-in-the-middle attacker could use this flaw to spoof a Squid server

using a specially crafted X.509 certificate. (CVE-2015-3455)

 

This update fixes the following bugs:

 

* Previously, the squid process did not handle file descriptors correctly

when receiving Simple Network Management Protocol (SNMP) requests. As a

consequence, the process gradually accumulated open file descriptors. This

bug has been fixed and squid now handles SNMP requests correctly, closing

file descriptors when necessary. (BZ#1198778)

 

* Under high system load, the squid process sometimes terminated

unexpectedly with a segmentation fault during reboot. This update provides

better memory handling during reboot, thus fixing this bug. (BZ#1225640)

 

Users of squid are advised to upgrade to these updated packages, which fix

these bugs. After installing this update, the squid service will be

restarted automatically.

 

4. Solution:

 

Before applying this update, make sure all previously released errata

relevant to your system have been applied.

 

For details on how to apply this update, refer to:

 

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

 

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

 

1102842 - missing /var/run/squid needed for smp mode

1161600 - Squid does not serve cached responses with Vary headers

1198778 - Filedescriptor leaks on snmp

1204375 - squid sends incorrect ssl chain breaking newer gnutls using applications

1218118 - CVE-2015-3455 squid: incorrect X509 server certificate validation (SQUID-2015:1)

1263338 - squid with digest auth on big endian systems start looping

 

6. Package List:

 

Red Hat Enterprise Linux Server (v. 7):

 

Source:

squid-3.3.8-26.el7.src.rpm

 

aarch64:

squid-3.3.8-26.el7.aarch64.rpm

squid-debuginfo-3.3.8-26.el7.aarch64.rpm

 

ppc64:

squid-3.3.8-26.el7.ppc64.rpm

squid-debuginfo-3.3.8-26.el7.ppc64.rpm

 

ppc64le:

squid-3.3.8-26.el7.ppc64le.rpm

squid-debuginfo-3.3.8-26.el7.ppc64le.rpm

 

s390x:

squid-3.3.8-26.el7.s390x.rpm

squid-debuginfo-3.3.8-26.el7.s390x.rpm

 

x86_64:

squid-3.3.8-26.el7.x86_64.rpm

squid-debuginfo-3.3.8-26.el7.x86_64.rpm

 

Red Hat Enterprise Linux Server Optional (v. 7):

 

aarch64:

squid-debuginfo-3.3.8-26.el7.aarch64.rpm

squid-sysvinit-3.3.8-26.el7.aarch64.rpm

 

ppc64:

squid-debuginfo-3.3.8-26.el7.ppc64.rpm

squid-sysvinit-3.3.8-26.el7.ppc64.rpm

 

ppc64le:

squid-debuginfo-3.3.8-26.el7.ppc64le.rpm

squid-sysvinit-3.3.8-26.el7.ppc64le.rpm

 

s390x:

squid-debuginfo-3.3.8-26.el7.s390x.rpm

squid-sysvinit-3.3.8-26.el7.s390x.rpm

 

x86_64:

squid-debuginfo-3.3.8-26.el7.x86_64.rpm

squid-sysvinit-3.3.8-26.el7.x86_64.rpm

 

Red Hat Enterprise Linux Workstation (v. 7):

 

Source:

squid-3.3.8-26.el7.src.rpm

 

x86_64:

squid-3.3.8-26.el7.x86_64.rpm

squid-debuginfo-3.3.8-26.el7.x86_64.rpm

 

Red Hat Enterprise Linux Workstation Optional (v. 7):

 

x86_64:

squid-debuginfo-3.3.8-26.el7.x86_64.rpm

squid-sysvinit-3.3.8-26.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-2015-3455

https://access.redhat.com/security/updates/classification/#moderate

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2015 Red Hat, Inc.

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