GLSA Bodhisattva
Joined: 25 Feb 2003 Posts: 3829 Location: Essen, Germany
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Posted: Sun Mar 06, 2005 2:10 pm Post subject: [ GLSA 200503-12 ] Hashcash: Format string vulnerability |
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Gentoo Linux Security Advisory
Title: Hashcash: Format string vulnerability (GLSA 200503-12)
Severity: normal
Exploitable: remote
Date: March 06, 2005
Updated: May 22, 2006
Bug(s): #83541
ID: 200503-12
Synopsis
A format string vulnerability in the Hashcash utility could allow an
attacker to execute arbitrary code.
Background
Hashcash is a utility for generating Hashcash tokens, a proof-of-work
system to reduce the impact of spam.
Affected Packages
Package: net-misc/hashcash
Vulnerable: < 1.16-r1
Unaffected: >= 1.16-r1
Architectures: All supported architectures
Description
Tavis Ormandy of the Gentoo Linux Security Audit Team identified a flaw
in the Hashcash utility that an attacker could expose by specifying a
malformed reply address.
Impact
Successful exploitation would permit an attacker to disrupt Hashcash
users, and potentially execute arbitrary code.
Workaround
There is no known workaround at this time.
Resolution
All Hashcash users should upgrade to the latest version:
Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/hashcash-1.16-r1" |
References
CVE-2005-0687
Last edited by GLSA on Fri Feb 13, 2015 4:19 am; edited 10 times in total |
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