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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200606-25] Hashcash: Possible heap overflow

Vulnerability Assessment Details

[GLSA-200606-25] Hashcash: Possible heap overflow

Vulnerability Assessment Summary
Hashcash: Possible heap overflow

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200606-25
(Hashcash: Possible heap overflow)

Andreas Seltenreich has reported a possible heap overflow in the
array_push() function in hashcash.c, as a result of an incorrect amount
of allocated memory for the "ARRAY" structure.

Impact

By sending malicious entries to the Hashcash utility, a possible hacker may
be able to cause an overflow, potentially resulting in the execution of
arbitrary code with the rights of the user running the application.

Workaround

There is no known workaround at this time.

References:
http://www.hashcash.org/source/CHANGELOG

Solution:
All Hashcash users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/hashcash-1.21"

Network Security Threat Level: High

Networks Security ID:

Vulnerability Assessment Copyright: (C) 2006 Michel Arboi

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