RHSA-2004:591 - Security Advisory

Topic

An updated squid package that fixes a remote denial of service vulnerability
is now avaliable.

Description

Squid is a full-featured Web proxy cache.

iDEFENSE reported a flaw in the squid SNMP module. This flaw could allow
an attacker who has the ability to send arbitrary packets to the SNMP port
to restart the server, causing it to drop all open connections. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name
CAN-2004-0918 to this issue.

All users of squid should update to this erratum package, which contains a
backport of the security fix for this vulnerability.

Solution

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied. Use Red Hat
Network to download and update your packages. To launch the Red Hat
Update Agent, use the following command:

up2date

For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:

http://www.redhat.com/docs/manuals/enterprise/

Affected Products

• Red Hat Enterprise Linux Server 3 x86_64
• Red Hat Enterprise Linux Server 3 ia64
• Red Hat Enterprise Linux Server 3 i386
• Red Hat Enterprise Linux Server 2 ia64
• Red Hat Enterprise Linux Server 2 i386
• Red Hat Enterprise Linux Workstation 3 x86_64
• Red Hat Enterprise Linux Workstation 3 ia64
• Red Hat Enterprise Linux Workstation 3 i386
• Red Hat Enterprise Linux Workstation 2 ia64
• Red Hat Enterprise Linux Desktop 3 x86_64
• Red Hat Enterprise Linux Desktop 3 i386
• Red Hat Enterprise Linux for IBM z Systems 3 s390x
• Red Hat Enterprise Linux for IBM z Systems 3 s390
• Red Hat Enterprise Linux for Power, big endian 3 ppc

Fixes

• BZ - 135319 - CAN-2004-0918 SNMP DoS

CVEs

• CVE-2004-0918

References

• http://www.idefense.com/application/poi/display?id=152&type=vulnerabilities