Title: Ethereal SOCKS Dissector Format String Vulnerability
Severity: HIGH
Description:
Ethereal is a freely available, open source network traffic analysis tool. It is maintained by the Ethereal Project and is available for most Unix and Linux variants as well as Microsoft Windows operating systems.
The Ethereal SOCKS dissector is a mechanism for decoding the SOCKS protocol. A format string vulnerability has been reported in some versions of this dissector. The vulnerability exists in the packet-socks.c source file.
An attacker can exploit this vulnerability by connecting to a vulnerable SOCKS server and sending malicious format string specifiers to the SOCKS server. If Ethereal is being used as a security tool to monitor network packets, it is possible that sensitive memory may be corrupted.
This has been confirmed to result in a denial of service condition. Additionally, it may be possible to cause Ethereal to execute malicious attacker-supplied code.
This vulnerability affects Ethereal 0.9.9 and earlier.
Affected Products:
- Conectiva Linux 6.0.0
- Conectiva Linux 7.0.0
- Conectiva Linux 8.0.0
- Conectiva Linux Enterprise Edition 1.0.0
- Debian Linux 3.0.0 alpha
- Debian Linux 3.0.0 arm
- Debian Linux 3.0.0 hppa
- Debian Linux 3.0.0 ia-32
- Debian Linux 3.0.0 ia-64
- Debian Linux 3.0.0 m68k
- Debian Linux 3.0.0 mips
- Debian Linux 3.0.0 mipsel
- Debian Linux 3.0.0 ppc
- Debian Linux 3.0.0 s/390
- Debian Linux 3.0.0 sparc
- Ethereal Group Ethereal 0.8.18
- Ethereal Group Ethereal 0.9.0
- Ethereal Group Ethereal 0.9.1
- Ethereal Group Ethereal 0.9.2
- Ethereal Group Ethereal 0.9.3
- Ethereal Group Ethereal 0.9.4
- Ethereal Group Ethereal 0.9.5
- Ethereal Group Ethereal 0.9.6
- Ethereal Group Ethereal 0.9.7
- Ethereal Group Ethereal 0.9.8
- Ethereal Group Ethereal 0.9.9
- MandrakeSoft Linux Mandrake 9.1.0
- MandrakeSoft Linux Mandrake 9.1.0 ppc
- RedHat Enterprise Linux AS 2.1
- RedHat Enterprise Linux ES 2.1
- RedHat Enterprise Linux WS 2.1
- RedHat Linux 6.2.0 alpha
- RedHat Linux 6.2.0 i386
- RedHat Linux 6.2.0 sparc
- RedHat Linux 7.0.0 alpha
- RedHat Linux 7.0.0 i386
- RedHat Linux 7.0.0 sparc
- RedHat Linux 7.1.0 alpha
- RedHat Linux 7.1.0 i386
- RedHat Linux 7.1.0 ia64
- RedHat Linux 7.2.0
- RedHat Linux 7.2.0 alpha
- RedHat Linux 7.2.0 i386
- RedHat Linux 7.2.0 ia64
- RedHat Linux 7.3.0
- RedHat Linux 7.3.0 i386
- RedHat Linux 8.0.0
- RedHat Linux 8.0.0 i386
- RedHat Linux 9.0.0 i386
- RedHat Linux Advanced Work Station 2.1.0
- Terra Soft Solutions Yellow Dog Linux 3.0.0
References:
- Ethereal Group: SOCKS string format vulnerability in Ethereal 0.9.9
- Georgi Guninski: Ethereal format string bug, yet still ethereal much better than windows
- Red Hat: RHSA-2003:077-13 Updated Ethereal packages fix security issues
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