Ethereal Server Message Block Dissector Malformed Packet Denial Of Service Vulnerability

BID:4806

Info

Ethereal Server Message Block Dissector Malformed Packet Denial Of Service Vulnerability

Bugtraq ID: 4806
Class: Design Error
CVE:
Remote: Yes
Local: No
Published: May 23 2002 12:00AM
Updated: May 23 2002 12:00AM
Credit: This issue was announced in the Ethereal application notes.
Vulnerable: Ethereal Group Ethereal 0.9.3
+ Redhat Linux 7.3 i386
 + Redhat Linux 7.3
+ Redhat Linux 7.2 i386
 + Redhat Linux 7.2 alpha
 + Redhat Linux 7.1 ia64
 + Redhat Linux 7.1 i386
 + Redhat Linux 7.1 alpha
 + Redhat Linux 7.0 sparc
 + Redhat Linux 7.0 i386
 + Redhat Linux 7.0 alpha
 + Redhat Linux 6.2 sparc
 + Redhat Linux 6.2 i386
 + Redhat Linux 6.2 alpha
 Ethereal Group Ethereal 0.9.2
Ethereal Group Ethereal 0.9.1
- Compaq Tru64 5.0
- Debian Linux 2.2 sparc
 - Debian Linux 2.2 powerpc
 - Debian Linux 2.2 IA-32
 - Debian Linux 2.2 arm
 - Debian Linux 2.2 alpha
 - Debian Linux 2.2 68k
 - HP HP-UX 11.0
- IBM AIX 5.1
 - Linux kernel 2.4
- Microsoft Windows 2000 Professional
- Microsoft Windows 95
- Microsoft Windows 98
- Microsoft Windows 98SE
- Microsoft Windows ME
- Microsoft Windows NT Workstation 4.0
 - NetBSD NetBSD 1.5
- OpenBSD OpenSSH 3.0
- SCO Unixware 7.0
- SGI IRIX 6.0
- Sun Solaris 8_sparc
 Ethereal Group Ethereal 0.9
Ethereal Group Ethereal 0.8.18
- Redhat Linux 7.2 ia64
 - Redhat Linux 7.2 i386
 - Redhat Linux 7.2
Not Vulnerable: Ethereal Group Ethereal 0.9.4
+ Debian Linux 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha

Discussion

Ethereal Server Message Block Dissector Malformed Packet Denial Of Service Vulnerability

Two conditions exists that may result in attempts to dereference NULL pointers. The conditions may be triggered by a specially constructed SMB packet transmitted across the network by the attacker. By transmitting such a packet while a session of Ethereal is running, Ethereal could be made to dereference a NULL pointer, resulting in a crash of the application.

Exploit / POC

Ethereal Server Message Block Dissector Malformed Packet Denial Of Service Vulnerability

Currently the SecurityFocus staff are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

Ethereal Server Message Block Dissector Malformed Packet Denial Of Service Vulnerability

Solution:
This issue has been addressed in Ethereal 0.9.4. Those affected by this
vulnerability are advised to upgrade.


Ethereal Group Ethereal 0.8.18

Ethereal Group Ethereal 0.9

Ethereal Group Ethereal 0.9.1

Ethereal Group Ethereal 0.9.2

Ethereal Group Ethereal 0.9.3

References

Ethereal Server Message Block Dissector Malformed Packet Denial Of Service Vulnerability

References:

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