Ethereal AFS Dissector Memory Corruption Vulnerability

BID:5167

Info

Ethereal AFS Dissector Memory Corruption Vulnerability

Bugtraq ID: 5167
Class: Boundary Condition Error
CVE:
Remote: Yes
Local: No
Published: Jun 28 2002 12:00AM
Updated: Jun 28 2002 12:00AM
Credit: Published in Ethereal advisory enpa-sa-00005.
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
 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 0.9.5

Discussion

Ethereal AFS Dissector Memory Corruption Vulnerability

The Ethereal AFS dissector is a mechanism for decoding the AFS protocol. A vulnerability has been reported in some versions of this dissector. Under some conditions, the Ethereal process may crash and dump core when analysing AFS data. An attacker able to create this condition may cause a denial of service condition.

Exploit / POC

Ethereal AFS Dissector Memory Corruption Vulnerability

Currently we 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 AFS Dissector Memory Corruption Vulnerability

Solution:
FreeBSD has released an updated version of ports which contains version 0.9.6 of Ethereal. The new version of ports may be downloaded from a ports mirror, and the fixed version of Ethereal installed from source. See referenced advisory for more information.

This issue has been addressed in Ethereal 0.9.5. Those affected by this vulnerability are advised to upgrade.

Fixes are available:


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

Ethereal Group Ethereal 0.9.4

References

Ethereal AFS Dissector Memory Corruption Vulnerability

References:

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