Red Hat: 2011:0545-01: squid: Low Advisory
Summary
Squid is a high-performance proxy caching server for web clients,
supporting FTP, Gopher, and HTTP data objects.
It was found that string comparison functions in Squid did not properly
handle the comparisons of NULL and empty strings. A remote, trusted web
client could use this flaw to cause the squid daemon to crash via a
specially-crafted request. (CVE-2010-3072)
This update also fixes the following bugs:
* A small memory leak in Squid caused multiple "ctx: enter level" messages
to be logged to "/var/log/squid/cache.log". This update resolves the memory
leak. (BZ#666533)
* This erratum upgrades Squid to upstream version 3.1.10. This upgraded
version supports the Google Instant service and introduces various code
improvements. (BZ#639365)
Users of squid should upgrade to this updated package, which resolves these
issues. After installing this update, the squid service will be restarted
automatically.
Summary
Solution
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
https://access.redhat.com/kb/docs/DOC-11259
References
https://www.redhat.com/security/data/cve/CVE-2010-3072.html https://access.redhat.com/security/updates/classification/#low
Package List
Red Hat Enterprise Linux Server (v. 6):
Source:
i386:
squid-3.1.10-1.el6.i686.rpm
squid-debuginfo-3.1.10-1.el6.i686.rpm
ppc64:
squid-3.1.10-1.el6.ppc64.rpm
squid-debuginfo-3.1.10-1.el6.ppc64.rpm
s390x:
squid-3.1.10-1.el6.s390x.rpm
squid-debuginfo-3.1.10-1.el6.s390x.rpm
x86_64:
squid-3.1.10-1.el6.x86_64.rpm
squid-debuginfo-3.1.10-1.el6.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
i386:
squid-3.1.10-1.el6.i686.rpm
squid-debuginfo-3.1.10-1.el6.i686.rpm
x86_64:
squid-3.1.10-1.el6.x86_64.rpm
squid-debuginfo-3.1.10-1.el6.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/#package
Topic
An updated squid package that fixes one security issue and two bugs is nowavailable for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having lowsecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.
Topic
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
Bugs Fixed
630444 - CVE-2010-3072 Squid: Denial of service due internal error in string handling (SQUID-2010:3)
639365 - Rebase squid to version 3.1.10
666533 - small memleak in squid-3.1.4