13329 : fprobe Weak Hash Functions DoS
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
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Timeline

Disclosure Date
2005-01-30

Description

fprobe contains a flaw that may allow a remote denial of service. The issue is triggered when specially crafted data containing many hash collisions occurs and is due to vulnerable xor8, xor16, and crc16 hash implementations. This will result in loss of availability for the platform by causing a large amount of CPU usage.

Classification

Location: Remote / Network Access
Attack Type: Denial of Service
Impact: Loss of Availability
Exploit: Exploit Public
Disclosure: Vendor Verified

Solution

Upgrade to version 1.1 or higher, as it has been reported to fix the crc16 vulnerability and changes crc16 to the default hashing algorithm. An upgrade is required as there are no known workarounds. The xor8 and xor16 hash algorithms are currently vulnerable in version 1.1 and there is no known patch or upgrade to fix this problem.

Products

fprobe

1.0.6

References

Secunia Advisory ID: 14072
Vendor URL: http://fprobe.sourceforge.net/
Vendor Specific News/Changelog Entry: http://sourceforge.net/project/shownotes.php?release_id=300909
Other Advisory URL: http://www.cs.rice.edu/~scrosby/hash

Credit

Unknown or Incomplete

CVSSv2 Score

NVD does not currently have a CVSSv2 score assigned.

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