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Security Advisory telnet security update

Advisory: RHSA-2005:504-06
Type: Security Advisory
Severity: Moderate
Issued on: 2005-06-14
Last updated on: 2005-06-14
Affected Products: Red Hat Desktop (v. 3)
Red Hat Desktop (v. 4)
Red Hat Enterprise Linux AS (v. 2.1)
Red Hat Enterprise Linux AS (v. 3)
Red Hat Enterprise Linux AS (v. 4)
Red Hat Enterprise Linux ES (v. 2.1)
Red Hat Enterprise Linux ES (v. 3)
Red Hat Enterprise Linux ES (v. 4)
Red Hat Enterprise Linux WS (v. 2.1)
Red Hat Enterprise Linux WS (v. 3)
Red Hat Enterprise Linux WS (v. 4)
Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor
CVEs (cve.mitre.org): CVE-2005-0488

Details

Updated telnet packages that fix an information disclosure issue are now
available.

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

The telnet package provides a command line telnet client.

Gael Delalleau discovered an information disclosure issue in the way the
telnet client handles messages from a server. An attacker could construct
a malicious telnet server that collects information from the environment of
any victim who connects to it. The Common Vulnerabilities and Exposures
project (cve.mitre.org) has assigned the name CAN-2005-0488 to this issue.

Users of telnet should upgrade to this updated package, which contains a
backported patch to correct this issue.


Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via Red Hat Network. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

Updated packages

Red Hat Desktop (v. 3)

SRPMS:
telnet-0.17-26.EL3.3.src.rpm     MD5: 683f3a6fae5f0b9b43249390527a79cc
 
IA-32:
telnet-0.17-26.EL3.3.i386.rpm     MD5: cda1f619d2f864c113e068e616c65530
telnet-server-0.17-26.EL3.3.i386.rpm     MD5: f40313804ebecab1cf57b4531af1e5e7
 
x86_64:
telnet-0.17-26.EL3.3.x86_64.rpm     MD5: 83d8e20716ce1d6d98600fe29195713d
telnet-server-0.17-26.EL3.3.x86_64.rpm     MD5: 560945441fdcefa6ceedb38ddf2f8869
 
Red Hat Desktop (v. 4)

SRPMS:
telnet-0.17-31.EL4.3.src.rpm
File outdated by:  RHBA-2007:0798
    MD5: 1afaad8fd9a0ca90f633f8b3d92dcac9
 
IA-32:
telnet-0.17-31.EL4.3.i386.rpm
File outdated by:  RHBA-2007:0798
    MD5: f7e6d78d44ea95b7354b153299917a48
telnet-server-0.17-31.EL4.3.i386.rpm
File outdated by:  RHBA-2007:0798
    MD5: d8a97db3761f4c061abe9d33a6a55957
 
x86_64:
telnet-0.17-31.EL4.3.x86_64.rpm
File outdated by:  RHBA-2007:0798
    MD5: e4061ad47ef737849aa2736328514861
telnet-server-0.17-31.EL4.3.x86_64.rpm
File outdated by:  RHBA-2007:0798
    MD5: 99c89bb6f1663db0abe2aaabea2d1402
 
Red Hat Enterprise Linux AS (v. 2.1)

SRPMS:
telnet-0.17-20.EL2.4.src.rpm     MD5: 29916c3c5d489abe67b924e5632eb181
 
IA-32:
telnet-0.17-20.EL2.4.i386.rpm     MD5: c60a0c2b5f95fce95ca50bff53026acf
telnet-server-0.17-20.EL2.4.i386.rpm     MD5: a058fc85f4236cb0c636159aa7d633ce
 
IA-64:
telnet-0.17-20.EL2.4.ia64.rpm     MD5: 5b47dc975fa30ec5cd2ca87688d88a75
telnet-server-0.17-20.EL2.4.ia64.rpm     MD5: dfcb49651938529dc80948e6b2e590ac
 
Red Hat Enterprise Linux AS (v. 3)

SRPMS:
telnet-0.17-26.EL3.3.src.rpm     MD5: 683f3a6fae5f0b9b43249390527a79cc
 
IA-32:
telnet-0.17-26.EL3.3.i386.rpm     MD5: cda1f619d2f864c113e068e616c65530
telnet-server-0.17-26.EL3.3.i386.rpm     MD5: f40313804ebecab1cf57b4531af1e5e7
 
IA-64:
telnet-0.17-26.EL3.3.ia64.rpm     MD5: 9f3533a862605330846e18d41705ed74
telnet-server-0.17-26.EL3.3.ia64.rpm     MD5: 3cc79bf807d6c0ef2c88be4a9b11797f
 
PPC:
telnet-0.17-26.EL3.3.ppc.rpm     MD5: 1f8614267bf84b13cafdae5c2f71efdf
telnet-server-0.17-26.EL3.3.ppc.rpm     MD5: 71a2ff5505d6b3c3ad73322e4f6d7d12
 
s390:
telnet-0.17-26.EL3.3.s390.rpm     MD5: 041ae907bd1b00bcd556d4599c330334
telnet-server-0.17-26.EL3.3.s390.rpm     MD5: 22d56448d6f29cfdbf89aff0c04f994e
 
s390x:
telnet-0.17-26.EL3.3.s390x.rpm     MD5: 4a75669c15e077bde8d67fef617bd3e7
telnet-server-0.17-26.EL3.3.s390x.rpm     MD5: bcf68468a636a170d6f9897d5b4693b4
 
x86_64:
telnet-0.17-26.EL3.3.x86_64.rpm     MD5: 83d8e20716ce1d6d98600fe29195713d
telnet-server-0.17-26.EL3.3.x86_64.rpm     MD5: 560945441fdcefa6ceedb38ddf2f8869
 
Red Hat Enterprise Linux AS (v. 4)

SRPMS:
telnet-0.17-31.EL4.3.src.rpm
File outdated by:  RHBA-2007:0798
    MD5: 1afaad8fd9a0ca90f633f8b3d92dcac9
 
IA-32:
telnet-0.17-31.EL4.3.i386.rpm
File outdated by:  RHBA-2007:0798
    MD5: f7e6d78d44ea95b7354b153299917a48
telnet-server-0.17-31.EL4.3.i386.rpm
File outdated by:  RHBA-2007:0798
    MD5: d8a97db3761f4c061abe9d33a6a55957
 
IA-64:
telnet-0.17-31.EL4.3.ia64.rpm
File outdated by:  RHBA-2007:0798
    MD5: 757b16c60d7a14c79e4db0da16f54611
telnet-server-0.17-31.EL4.3.ia64.rpm
File outdated by:  RHBA-2007:0798
    MD5: 1a61e1b55a96709364e4212c64004708
 
PPC:
telnet-0.17-31.EL4.3.ppc.rpm
File outdated by:  RHBA-2007:0798
    MD5: ab9af8408934a5c90732752c237fb534
telnet-server-0.17-31.EL4.3.ppc.rpm
File outdated by:  RHBA-2007:0798
    MD5: 079055dcc0cb9a6ab3a8bbcca0c1d208
 
s390:
telnet-0.17-31.EL4.3.s390.rpm
File outdated by:  RHBA-2007:0798
    MD5: 3498586b518d408a50b71c6c2f9f88c6
telnet-server-0.17-31.EL4.3.s390.rpm
File outdated by:  RHBA-2007:0798
    MD5: 3cb3275401f0aac567809d42260bfa82
 
s390x:
telnet-0.17-31.EL4.3.s390x.rpm
File outdated by:  RHBA-2007:0798
    MD5: 961257885dbc8ba17b51a335b34085a9
telnet-server-0.17-31.EL4.3.s390x.rpm
File outdated by:  RHBA-2007:0798
    MD5: 081b087c92b4a01d9e28a5ce7ff9f30b
 
x86_64:
telnet-0.17-31.EL4.3.x86_64.rpm
File outdated by:  RHBA-2007:0798
    MD5: e4061ad47ef737849aa2736328514861
telnet-server-0.17-31.EL4.3.x86_64.rpm
File outdated by:  RHBA-2007:0798
    MD5: 99c89bb6f1663db0abe2aaabea2d1402
 
Red Hat Enterprise Linux ES (v. 2.1)

SRPMS:
telnet-0.17-20.EL2.4.src.rpm     MD5: 29916c3c5d489abe67b924e5632eb181
 
IA-32:
telnet-0.17-20.EL2.4.i386.rpm     MD5: c60a0c2b5f95fce95ca50bff53026acf
telnet-server-0.17-20.EL2.4.i386.rpm     MD5: a058fc85f4236cb0c636159aa7d633ce
 
Red Hat Enterprise Linux ES (v. 3)

SRPMS:
telnet-0.17-26.EL3.3.src.rpm     MD5: 683f3a6fae5f0b9b43249390527a79cc
 
IA-32:
telnet-0.17-26.EL3.3.i386.rpm     MD5: cda1f619d2f864c113e068e616c65530
telnet-server-0.17-26.EL3.3.i386.rpm     MD5: f40313804ebecab1cf57b4531af1e5e7
 
IA-64:
telnet-0.17-26.EL3.3.ia64.rpm     MD5: 9f3533a862605330846e18d41705ed74
telnet-server-0.17-26.EL3.3.ia64.rpm     MD5: 3cc79bf807d6c0ef2c88be4a9b11797f
 
x86_64:
telnet-0.17-26.EL3.3.x86_64.rpm     MD5: 83d8e20716ce1d6d98600fe29195713d
telnet-server-0.17-26.EL3.3.x86_64.rpm     MD5: 560945441fdcefa6ceedb38ddf2f8869
 
Red Hat Enterprise Linux ES (v. 4)

SRPMS:
telnet-0.17-31.EL4.3.src.rpm
File outdated by:  RHBA-2007:0798
    MD5: 1afaad8fd9a0ca90f633f8b3d92dcac9
 
IA-32:
telnet-0.17-31.EL4.3.i386.rpm
File outdated by:  RHBA-2007:0798
    MD5: f7e6d78d44ea95b7354b153299917a48
telnet-server-0.17-31.EL4.3.i386.rpm
File outdated by:  RHBA-2007:0798
    MD5: d8a97db3761f4c061abe9d33a6a55957
 
IA-64:
telnet-0.17-31.EL4.3.ia64.rpm
File outdated by:  RHBA-2007:0798
    MD5: 757b16c60d7a14c79e4db0da16f54611
telnet-server-0.17-31.EL4.3.ia64.rpm
File outdated by:  RHBA-2007:0798
    MD5: 1a61e1b55a96709364e4212c64004708
 
x86_64:
telnet-0.17-31.EL4.3.x86_64.rpm
File outdated by:  RHBA-2007:0798
    MD5: e4061ad47ef737849aa2736328514861
telnet-server-0.17-31.EL4.3.x86_64.rpm
File outdated by:  RHBA-2007:0798
    MD5: 99c89bb6f1663db0abe2aaabea2d1402
 
Red Hat Enterprise Linux WS (v. 2.1)

SRPMS:
telnet-0.17-20.EL2.4.src.rpm     MD5: 29916c3c5d489abe67b924e5632eb181
 
IA-32:
telnet-0.17-20.EL2.4.i386.rpm     MD5: c60a0c2b5f95fce95ca50bff53026acf
telnet-server-0.17-20.EL2.4.i386.rpm     MD5: a058fc85f4236cb0c636159aa7d633ce
 
Red Hat Enterprise Linux WS (v. 3)

SRPMS:
telnet-0.17-26.EL3.3.src.rpm     MD5: 683f3a6fae5f0b9b43249390527a79cc
 
IA-32:
telnet-0.17-26.EL3.3.i386.rpm     MD5: cda1f619d2f864c113e068e616c65530
telnet-server-0.17-26.EL3.3.i386.rpm     MD5: f40313804ebecab1cf57b4531af1e5e7
 
IA-64:
telnet-0.17-26.EL3.3.ia64.rpm     MD5: 9f3533a862605330846e18d41705ed74
telnet-server-0.17-26.EL3.3.ia64.rpm     MD5: 3cc79bf807d6c0ef2c88be4a9b11797f
 
x86_64:
telnet-0.17-26.EL3.3.x86_64.rpm     MD5: 83d8e20716ce1d6d98600fe29195713d
telnet-server-0.17-26.EL3.3.x86_64.rpm     MD5: 560945441fdcefa6ceedb38ddf2f8869
 
Red Hat Enterprise Linux WS (v. 4)

SRPMS:
telnet-0.17-31.EL4.3.src.rpm
File outdated by:  RHBA-2007:0798
    MD5: 1afaad8fd9a0ca90f633f8b3d92dcac9
 
IA-32:
telnet-0.17-31.EL4.3.i386.rpm
File outdated by:  RHBA-2007:0798
    MD5: f7e6d78d44ea95b7354b153299917a48
telnet-server-0.17-31.EL4.3.i386.rpm
File outdated by:  RHBA-2007:0798
    MD5: d8a97db3761f4c061abe9d33a6a55957
 
IA-64:
telnet-0.17-31.EL4.3.ia64.rpm
File outdated by:  RHBA-2007:0798
    MD5: 757b16c60d7a14c79e4db0da16f54611
telnet-server-0.17-31.EL4.3.ia64.rpm
File outdated by:  RHBA-2007:0798
    MD5: 1a61e1b55a96709364e4212c64004708
 
x86_64:
telnet-0.17-31.EL4.3.x86_64.rpm
File outdated by:  RHBA-2007:0798
    MD5: e4061ad47ef737849aa2736328514861
telnet-server-0.17-31.EL4.3.x86_64.rpm
File outdated by:  RHBA-2007:0798
    MD5: 99c89bb6f1663db0abe2aaabea2d1402
 
Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor

SRPMS:
telnet-0.17-20.EL2.4.src.rpm     MD5: 29916c3c5d489abe67b924e5632eb181
 
IA-64:
telnet-0.17-20.EL2.4.ia64.rpm     MD5: 5b47dc975fa30ec5cd2ca87688d88a75
telnet-server-0.17-20.EL2.4.ia64.rpm     MD5: dfcb49651938529dc80948e6b2e590ac
 
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

159297 - CAN-2005-0488 telnet Information Disclosure Vulnerability


References



These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:
https://www.redhat.com/security/team/key/#package

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