| <?xml version="1.0" encoding="utf-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200504-11"> |
| <title>JunkBuster: Multiple vulnerabilities</title> |
| <synopsis> |
| JunkBuster is vulnerable to a heap corruption vulnerability, and under |
| certain configurations may allow an attacker to modify settings. |
| </synopsis> |
| <product type="ebuild">junkbuster</product> |
| <announced>April 13, 2005</announced> |
| <revised>April 21, 2005: 02</revised> |
| <bug>88537</bug> |
| <access>remote</access> |
| <affected> |
| <package name="net-proxy/junkbuster" auto="yes" arch="*"> |
| <unaffected range="ge">2.0.2-r3</unaffected> |
| <vulnerable range="lt">2.0.2-r3</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| JunkBuster is a filtering HTTP proxy, designed to enhance privacy and |
| remove unwanted content. |
| </p> |
| </background> |
| <description> |
| <p> |
| James Ranson reported a vulnerability when JunkBuster is configured to |
| run in single-threaded mode, an attacker can modify the referrer |
| setting by getting a victim to request a specially crafted URL |
| (CAN-2005-1108). Tavis Ormandy of the Gentoo Linux Security Audit Team |
| identified a heap corruption issue in the filtering of URLs |
| (CAN-2005-1109). |
| </p> |
| </description> |
| <impact type="high"> |
| <p> |
| If JunkBuster has been configured to run in single-threaded mode, an |
| attacker can disable or modify the filtering of Referrer: HTTP headers, |
| potentially compromising the privacy of users. The heap corruption |
| vulnerability could crash or disrupt the operation of the proxy, |
| potentially executing arbitrary code. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| There is no known workaround at this time. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All JunkBuster users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=net-proxy/junkbuster-2.0.2-r3"</code> |
| </resolution> |
| <references> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1108">CAN-2005-1108</uri> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1109">CAN-2005-1109</uri> |
| </references> |
| <metadata tag="requester" timestamp="Tue, 12 Apr 2005 20:24:12 +0000"> |
| jaervosz |
| </metadata> |
| <metadata tag="submitter" timestamp="Tue, 12 Apr 2005 21:28:36 +0000"> |
| taviso |
| </metadata> |
| <metadata tag="bugReady" timestamp="Wed, 13 Apr 2005 08:43:25 +0000"> |
| koon |
| </metadata> |
| </glsa> |