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Red Hat Product Errata RHSA-2004:546 - Security Advisory
Issued:
2004-10-07
Updated:
2004-10-07

RHSA-2004:546 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

cyrus-sasl security update

Type/Severity

Security Advisory: Important

Topic

Updated cyrus-sasl packages that fix a setuid and setgid application
vulnerability are now available.

[Updated 7th October 2004]
Revised cryus-sasl packages have been added for Red Hat Enterprise Linux 3;
the patch in the previous packages broke interaction with ldap.

Description

The cyrus-sasl package contains the Cyrus implementation of SASL. SASL is
the Simple Authentication and Security Layer, a method for adding
authentication support to connection-based protocols.

At application startup, libsasl and libsasl2 attempts to build a list
of all available SASL plug-ins which are available on the system. To do
so, the libraries search for and attempt to load every shared library found
within the plug-in directory. This location can be set with the SASL_PATH
environment variable.

In situations where an untrusted local user can affect the environment of a
privileged process, this behavior could be exploited to run arbitrary code
with the privileges of a setuid or setgid application. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name
CAN-2004-0884 to this issue.

Users of cyrus-sasl should upgrade to these updated packages, which contain
backported patches and are not vulnerable to this issue.

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 Workstation 2 i386
  • 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 - 134657 - CAN-2004-0884 privilege escalation
  • BZ - 134979 - cyrus-sasl causes crashes with ldap

CVEs

  • CVE-2004-0884

References

  • https://bugzilla.andrew.cmu.edu/cgi-bin/cvsweb.cgi/src/sasl/lib/common.c.diff?r1=1.103&r2=1.104
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux Server 3

SRPM
x86_64
ia64
i386

Red Hat Enterprise Linux Server 2

SRPM
ia64
i386

Red Hat Enterprise Linux Workstation 3

SRPM
x86_64
ia64
i386

Red Hat Enterprise Linux Workstation 2

SRPM
ia64
i386

Red Hat Enterprise Linux Desktop 3

SRPM
x86_64
i386

Red Hat Enterprise Linux for IBM z Systems 3

SRPM
s390x
s390

Red Hat Enterprise Linux for Power, big endian 3

SRPM
ppc

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

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