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Red Hat Product Errata RHSA-2006:0052 - Security Advisory
Issued:
2006-03-07
Updated:
2006-03-07

RHSA-2006:0052 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

squid security update

Type/Severity

Security Advisory: Moderate

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An updated squid package that fixes a security vulnerability as well as
several issues is now available.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

Description

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 processes certain NTLM
authentication requests. It is possible for a remote attacker to crash the
Squid server by sending a specially crafted NTLM authentication request.
The Common Vulnerabilities and Exposures project (cve.mitre.org) assigned
the name CVE-2005-2917 to this issue.

The following issues have also been fixed in this update:

  • An error introduced in squid-2.5.STABLE6-3.4E.12 can crash Squid when a

user visits a site that has a bit longer DNS record.

  • An error introduced in the old package prevented Squid from returning

correct information about large file systems. The new package is compiled
with the IDENT lookup support so that users who want to use it do not
have to recompile it.

  • Some authentication helpers needed SETUID rights but did not have them.

If administrators wanted to use cache administrator, they had to change
the SETUID bit manually. The updated package sets this bit so the new
package can be updated without manual intervention from administrators.

  • Squid could not handle a reply from an HTTP server when the reply began

with the new-line character.

  • An issue was discovered when a reply from an HTTP server was not

HTTP 1.0 or 1.1 compliant.

  • The updated package keeps user-defined error pages when the package

is updated and it adds new ones.

All users of squid should upgrade to this updated package, which resolves
these issues.

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 4 x86_64
  • Red Hat Enterprise Linux Server 4 ia64
  • Red Hat Enterprise Linux Server 4 i386
  • Red Hat Enterprise Linux Workstation 4 x86_64
  • Red Hat Enterprise Linux Workstation 4 ia64
  • Red Hat Enterprise Linux Workstation 4 i386
  • Red Hat Enterprise Linux Desktop 4 x86_64
  • Red Hat Enterprise Linux Desktop 4 i386
  • Red Hat Enterprise Linux for IBM z Systems 4 s390x
  • Red Hat Enterprise Linux for IBM z Systems 4 s390
  • Red Hat Enterprise Linux for Power, big endian 4 ppc

Fixes

  • BZ - 160704 - squid child processes exit with signal 6.. squid crashes
  • BZ - 162660 - pam authentication fails
  • BZ - 168378 - CVE-2005-2917 Squid malformed NTLM authentication DoS
  • BZ - 170399 - Squid blocks page served by broken server
  • BZ - 172375 - Error pages should not be replaced by updates
  • BZ - 172392 - One translated Polish language error is missing preventing squid from startup
  • BZ - 172697 - Squid doesn't handle headers split across packets

CVEs

  • CVE-2005-2917

References

(none)

Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux Server 4

SRPM
squid-2.5.STABLE6-3.4E.12.src.rpm SHA-256: 11cf05f616b781d1a87e1d6f0dc580cc410369a1e6ca3f991d98794c040dfef4
x86_64
squid-2.5.STABLE6-3.4E.12.x86_64.rpm SHA-256: d421cd19dff166f9bc68760029e79b48fcc18d3a52c8a6e5141864bf7e2efe4a
squid-2.5.STABLE6-3.4E.12.x86_64.rpm SHA-256: d421cd19dff166f9bc68760029e79b48fcc18d3a52c8a6e5141864bf7e2efe4a
ia64
squid-2.5.STABLE6-3.4E.12.ia64.rpm SHA-256: c22a7bde584781ebf088850d7be0b0f939daa5793e12acf801a028bb0c6c2249
squid-2.5.STABLE6-3.4E.12.ia64.rpm SHA-256: c22a7bde584781ebf088850d7be0b0f939daa5793e12acf801a028bb0c6c2249
i386
squid-2.5.STABLE6-3.4E.12.i386.rpm SHA-256: e2daa149a91e3a075a2318bf77b6924b8366174a680e7679b2eb2df304945e7f
squid-2.5.STABLE6-3.4E.12.i386.rpm SHA-256: e2daa149a91e3a075a2318bf77b6924b8366174a680e7679b2eb2df304945e7f

Red Hat Enterprise Linux Workstation 4

SRPM
squid-2.5.STABLE6-3.4E.12.src.rpm SHA-256: 11cf05f616b781d1a87e1d6f0dc580cc410369a1e6ca3f991d98794c040dfef4
x86_64
squid-2.5.STABLE6-3.4E.12.x86_64.rpm SHA-256: d421cd19dff166f9bc68760029e79b48fcc18d3a52c8a6e5141864bf7e2efe4a
ia64
squid-2.5.STABLE6-3.4E.12.ia64.rpm SHA-256: c22a7bde584781ebf088850d7be0b0f939daa5793e12acf801a028bb0c6c2249
i386
squid-2.5.STABLE6-3.4E.12.i386.rpm SHA-256: e2daa149a91e3a075a2318bf77b6924b8366174a680e7679b2eb2df304945e7f

Red Hat Enterprise Linux Desktop 4

SRPM
squid-2.5.STABLE6-3.4E.12.src.rpm SHA-256: 11cf05f616b781d1a87e1d6f0dc580cc410369a1e6ca3f991d98794c040dfef4
x86_64
squid-2.5.STABLE6-3.4E.12.x86_64.rpm SHA-256: d421cd19dff166f9bc68760029e79b48fcc18d3a52c8a6e5141864bf7e2efe4a
i386
squid-2.5.STABLE6-3.4E.12.i386.rpm SHA-256: e2daa149a91e3a075a2318bf77b6924b8366174a680e7679b2eb2df304945e7f

Red Hat Enterprise Linux for IBM z Systems 4

SRPM
squid-2.5.STABLE6-3.4E.12.src.rpm SHA-256: 11cf05f616b781d1a87e1d6f0dc580cc410369a1e6ca3f991d98794c040dfef4
s390x
squid-2.5.STABLE6-3.4E.12.s390x.rpm SHA-256: 81547aac18601dd4440d92c51b08de3bd1c8150a3ae47cd7cebe3ef2feb76117
s390
squid-2.5.STABLE6-3.4E.12.s390.rpm SHA-256: 8e4e80c5c7cd4cdddcdbd247eac0f99bd1da8a429d2c4c1f18e6cff85f74896d

Red Hat Enterprise Linux for Power, big endian 4

SRPM
squid-2.5.STABLE6-3.4E.12.src.rpm SHA-256: 11cf05f616b781d1a87e1d6f0dc580cc410369a1e6ca3f991d98794c040dfef4
ppc
squid-2.5.STABLE6-3.4E.12.ppc.rpm SHA-256: f5637764ed025c5db80ee63f1db00fe3148c1c422831ddff14b45aea077d2bec

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

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