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Ethereal Multiple Protocol Dissector Vulnerabilities
Secunia Advisory: SA9007
Release Date: 2003-06-12
Last Update: 2003-06-18
Popularity: 11,791 views

Critical:
Moderately critical
Impact: DoS
System access
Where: From remote
Solution Status: Vendor Patch

Software:Wireshark (formerly Ethereal) 0.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
Multiple vulnerabilities have been identified in Ethereal, which could be exploited to cause a DoS (Denial of Service) on a vulnerable system or potentially compromise it.

The vulnerabilities are caused due to various errors in the following protocol dissectors:
- DCERPC dissector (decoding NDR strings can lead to excessive memory consumption).
- OSI dissector (boundary error when handling manipulated IPv4 or IPv6 prefix lengths).
- SPNEGO (can crash when handling invalid ASN.1 values).
- BGP, WTP, DNS, 802.11, ISAKMP, WSP, CLNP, ISIS, and RMI dissectors (error in string handling)

Furthermore, an error also exists in the "tvb_get_nstringz0()" routine, when handling zero-length buffer sizes.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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