__________________________________________________________

                       The U.S. Department of Energy
                   Computer Incident Advisory Capability
                           ___  __ __    _     ___
                          /       |     /_\   /
                          \___  __|__  /   \  \___
             __________________________________________________________

                             INFORMATION BULLETIN

                                Tk Vulnerability
                     [Debian Security Advisory DSA-1415-1]

December 3, 2007 19:00 GMT                                        Number S-067
[REVISED 22 Feb 2008]
______________________________________________________________________________
PROBLEM:       It was discovered that Tk, a cross-platform graphical toolkit 
               for Tcl performs insufficient input validation in the code used 
               to load GIF images, which may lead to the execution of 
               arbitrary code. 
PLATFORM:      Debian GNU/Linux 3.1 (oldstable) and 4.0 (etch) 
               Red Hat Desktop (v. 3, v. 4)
			   Red Hat Enterprise Linux AS, ES, WS (v. 2.1, v.3, v.4)
			   Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor 
               RHEL Desktop Workstation (v. 5 Client)
			   Red Hat Enterprise Linux (v. 5 server)
               Red Hat Enterprise Linux Desktop (v. 5 client)
DAMAGE:        May lead to the execution of arbitrary code. 
SOLUTION:      Upgrade to the appropriate version. 
______________________________________________________________________________
VULNERABILITY  The risk is MEDIUM. May lead to the execution of arbitrary 
ASSESSMENT:    code. 
______________________________________________________________________________
LINKS: 
 CIAC BULLETIN:      http://www.ciac.org/ciac/bulletins/s-067.shtml 
 ORIGINAL BULLETIN:  http://www.debian.org/security/2007/dsa-1415 
 ADDITIONAL LINKS:   http://www.debian.org/security/2007/dsa-1416
                     http://rhn.redhat.com/errata/RHSA-2008-0134.html
                     http://rhn.redhat.com/errata/RHSA-2008-0135.html
                     http://rhn.redhat.com/errata/RHSA-2008-0136.html
 CVE:                http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= 
                     CVE-2007-5378 
______________________________________________________________________________
REVISION HISTORY:
02/22/2008 - revised S-067 to add links to Red Hat RHSA-2008:0134-3; RHSA-2008:0135-2; 
             and RHSA-2008:0136-1 for Red Hat Desktop (v. 3, v. 4), Red Hat Enterprise 
			 Linux AS, ES, WS (v. 2.1, v.3, v.4), Red Hat Linux Advanced Workstation 
			 2.1 for the Itanium Processor, RHEL Desktop Workstation (v. 5 Client), 
			 Red Hat Enterprise Linux (v. 5 server), and Red Hat Enterprise Linux 
			 Desktop (v. 5 client).



[***** Start Debian Security Advisory DSA-1415-1 *****]

Debian Security Advisory
DSA-1415-1 tk8.4 -- buffer overflow
Date Reported: 
27 Nov 2007 
Affected Packages: 
tk8.4 
Vulnerable: 
Yes 
Security database references: 
In Mitre's CVE dictionary: CVE-2007-5378.

More information: 
It was discovered that Tk, a cross-platform graphical toolkit for Tcl performs 
insufficient input validation in the code used to load GIF images, which may lead 
to the execution of arbitrary code.

For the old stable distribution (sarge), this problem has been fixed in version 8.4.9-1sarge1.

For the stable distribution (etch), this problem has been fixed in version 8.4.12-1etch1.

We recommend that you upgrade your tk8.4 packages. Updated packages for sparc will 
be provided later.

Fixed in: 
Debian GNU/Linux 3.1 (oldstable)
Source: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.9-1sarge1.diff.gz

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.9.orig.tar.gz

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.9-1sarge1.dsc

Architecture-independent component: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-doc_8.4.9-1sarge1_all.deb

Alpha: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.9-1sarge1_alpha.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.9-1sarge1_alpha.deb

AMD64: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.9-1sarge1_amd64.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.9-1sarge1_amd64.deb

ARM: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.9-1sarge1_arm.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.9-1sarge1_arm.deb

HP Precision: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.9-1sarge1_hppa.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.9-1sarge1_hppa.deb

Intel IA-32: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.9-1sarge1_i386.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.9-1sarge1_i386.deb

Intel IA-64: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.9-1sarge1_ia64.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.9-1sarge1_ia64.deb

Motorola 680x0: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.9-1sarge1_m68k.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.9-1sarge1_m68k.deb

Big-endian MIPS: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.9-1sarge1_mips.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.9-1sarge1_mips.deb

Little-endian MIPS: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.9-1sarge1_mipsel.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.9-1sarge1_mipsel.deb

PowerPC: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.9-1sarge1_powerpc.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.9-1sarge1_powerpc.deb

IBM S/390: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.9-1sarge1_s390.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.9-1sarge1_s390.deb

Debian 4.0 (etch)
Source: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.12-1etch1.diff.gz

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.12-1etch1.dsc

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.12.orig.tar.gz

Architecture-independent component: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-doc_8.4.12-1etch1_all.deb

Alpha: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.12-1etch1_alpha.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.12-1etch1_alpha.deb

AMD64: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.12-1etch1_amd64.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.12-1etch1_amd64.deb

ARM: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.12-1etch1_arm.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.12-1etch1_arm.deb

HP Precision: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.12-1etch1_hppa.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.12-1etch1_hppa.deb

Intel IA-32: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.12-1etch1_i386.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.12-1etch1_i386.deb

Intel IA-64: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.12-1etch1_ia64.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.12-1etch1_ia64.deb

Big-endian MIPS: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.12-1etch1_mips.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.12-1etch1_mips.deb

Little-endian MIPS: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.12-1etch1_mipsel.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.12-1etch1_mipsel.deb

PowerPC: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.12-1etch1_powerpc.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.12-1etch1_powerpc.deb

IBM S/390: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.12-1etch1_s390.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.12-1etch1_s390.deb

Sun Sparc: 
http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4-dev_8.4.12-1etch1_sparc.deb

http://security.debian.org/pool/updates/main/t/tk8.4/tk8.4_8.4.12-1etch1_sparc.deb

MD5 checksums of the listed files are available in the original advisory.


[***** End Debian Security Advisory DSA-1415-1 *****]
_______________________________________________________________________________

CIAC wishes to acknowledge the contributions of Debian for the 
information contained in this bulletin.
_______________________________________________________________________________


CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
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