Pidgin 'msn_slplink_process_msg()' Denial of Service Vulnerability

BID:33414

Info

Pidgin 'msn_slplink_process_msg()' Denial of Service Vulnerability

Bugtraq ID: 33414
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2008-2955
Remote: Yes
Local: No
Published: Jun 26 2008 12:00AM
Updated: Jan 18 2010 04:11PM
Credit: Juan Pablo Lopez Yacubian
Vulnerable: Ubuntu Ubuntu Linux 9.10 sparc
Ubuntu Ubuntu Linux 9.10 powerpc
Ubuntu Ubuntu Linux 9.10 lpia
Ubuntu Ubuntu Linux 9.10 i386
Ubuntu Ubuntu Linux 9.10 amd64
Ubuntu Ubuntu Linux 9.04 sparc
Ubuntu Ubuntu Linux 9.04 powerpc
Ubuntu Ubuntu Linux 9.04 lpia
Ubuntu Ubuntu Linux 9.04 i386
Ubuntu Ubuntu Linux 9.04 amd64
Ubuntu Ubuntu Linux 8.10 sparc
Ubuntu Ubuntu Linux 8.10 powerpc
Ubuntu Ubuntu Linux 8.10 lpia
Ubuntu Ubuntu Linux 8.10 i386
Ubuntu Ubuntu Linux 8.10 amd64
Ubuntu Ubuntu Linux 8.04 LTS sparc
Ubuntu Ubuntu Linux 8.04 LTS powerpc
Ubuntu Ubuntu Linux 8.04 LTS lpia
Ubuntu Ubuntu Linux 8.04 LTS i386
Ubuntu Ubuntu Linux 8.04 LTS amd64
Ubuntu Ubuntu Linux 7.10 sparc
Ubuntu Ubuntu Linux 7.10 powerpc
Ubuntu Ubuntu Linux 7.10 lpia
Ubuntu Ubuntu Linux 7.10 i386
Ubuntu Ubuntu Linux 7.10 amd64
rPath rPath Linux 1
Redhat Enterprise Linux WS 4
Redhat Enterprise Linux Optional Productivity Application 5 server
Redhat Enterprise Linux ES 4
Redhat Enterprise Linux Desktop Workstation 5 client
Redhat Enterprise Linux Desktop 5 client
Redhat Enterprise Linux AS 4
Redhat Enterprise Linux Desktop version 4
Pidgin Pidgin 2.4.2
Pidgin Pidgin 2.4.1
Pidgin Pidgin 2.2.2
Pidgin Pidgin 2.2.1
Pidgin Pidgin 2.2
Pidgin Pidgin 2.1
Pidgin Pidgin 2.0.2
Pidgin Pidgin 2.0
Mandriva Linux Mandrake 2008.1 x86_64
Mandriva Linux Mandrake 2008.1
Mandriva Linux Mandrake 2008.0 x86_64
Mandriva Linux Mandrake 2008.0
Gentoo Linux
Not Vulnerable: Pidgin Pidgin 2.4.3

Discussion

Pidgin 'msn_slplink_process_msg()' Denial of Service Vulnerability

Pidgin is prone to a denial-of-service vulnerability because it fails to properly sanitize user-supplied input.

Successful exploits will cause the affected application to crash, effectively denying service to legitimate users.

Pidgin 2.4.1 is vulnerable; other versions may also be affected.

NOTE: This issue was previously thought to be a subset of the vulnerability documented in BID 29956 (Pidgin 'msn_slplink_process_msg()' Multiple Integer Overflow Vulnerabilities), but has been given its own record to properly document the vulnerability.

Exploit / POC

Pidgin 'msn_slplink_process_msg()' Denial of Service Vulnerability

Attackers can exploit these issues by crafting and sending a malicious file to an unsuspecting victim using the MSN protocol.

The following proof-of-concept information is available:

Sending a filename that contains the maximum number of allowable characters and that includes the characters defined by the hex data below will crash the application.

'26 23 38 32 32 37 3b 20 26 23 38 32 32 38 3b 20 26 23 38 32 32 39 3b 20 85'

Solution / Fix

Pidgin 'msn_slplink_process_msg()' Denial of Service Vulnerability

Solution:
Updates are available. Please see the references for more information.


Ubuntu Ubuntu Linux 9.10 sparc

Mandriva Linux Mandrake 2008.1 x86_64

Ubuntu Ubuntu Linux 7.10 powerpc

Mandriva Linux Mandrake 2008.1

Ubuntu Ubuntu Linux 8.04 LTS powerpc

Ubuntu Ubuntu Linux 8.10 powerpc

Ubuntu Ubuntu Linux 8.04 LTS sparc

Ubuntu Ubuntu Linux 8.10 i386

Ubuntu Ubuntu Linux 9.10 powerpc

Mandriva Linux Mandrake 2008.0 x86_64

Ubuntu Ubuntu Linux 8.04 LTS amd64

Mandriva Linux Mandrake 2008.0

Ubuntu Ubuntu Linux 9.10 lpia

Ubuntu Ubuntu Linux 7.10 sparc

Ubuntu Ubuntu Linux 9.04 sparc

Ubuntu Ubuntu Linux 8.04 LTS lpia

Ubuntu Ubuntu Linux 9.04 powerpc

Ubuntu Ubuntu Linux 7.10 lpia

Ubuntu Ubuntu Linux 8.10 lpia

Ubuntu Ubuntu Linux 7.10 i386

Ubuntu Ubuntu Linux 9.04 i386

Ubuntu Ubuntu Linux 9.04 lpia

Ubuntu Ubuntu Linux 8.10 sparc

Ubuntu Ubuntu Linux 9.10 i386

Ubuntu Ubuntu Linux 7.10 amd64

Ubuntu Ubuntu Linux 9.10 amd64

Ubuntu Ubuntu Linux 8.04 LTS i386

Ubuntu Ubuntu Linux 9.04 amd64

Ubuntu Ubuntu Linux 8.10 amd64

Pidgin Pidgin 2.0

Pidgin Pidgin 2.0.2

Pidgin Pidgin 2.1

Pidgin Pidgin 2.2

Pidgin Pidgin 2.2.1

Pidgin Pidgin 2.2.2

Pidgin Pidgin 2.4.1

Pidgin Pidgin 2.4.2

References

Pidgin 'msn_slplink_process_msg()' Denial of Service Vulnerability

References:

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