Ethereal X11 Dissector Buffer Overflow Vulnerability

BID:4805

Info

Ethereal X11 Dissector Buffer Overflow Vulnerability

Bugtraq ID: 4805
Class: Boundary Condition Error
CVE:
Remote: Yes
Local: No
Published: May 19 2002 12:00AM
Updated: May 19 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 X11 Dissector Buffer Overflow Vulnerability

The X11 dissector is prone to a buffer overflow condition. This condition occurs when the dissector processes X11 keysyms. It is possible for an attacker to construct a packet that will, when decoded by Ethereal, trigger the overflow condition.

Exploit / POC

Ethereal X11 Dissector Buffer Overflow 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]>.

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