Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
[ GLSA 200503-12 ] Hashcash: Format string vulnerability
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index News & Announcements
View previous topic :: View next topic  
Author Message
GLSA
Bodhisattva
Bodhisattva


Joined: 25 Feb 2003
Posts: 3827
Location: Essen, Germany

PostPosted: Sun Mar 06, 2005 2:10 pm    Post subject: [ GLSA 200503-12 ] Hashcash: Format string vulnerability Reply with quote

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 Mon Sep 22, 2008 4:16 am; edited 8 times in total
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index News & Announcements All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum