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authorAlex Legler <alex@a3li.li>2015-03-08 22:02:38 +0100
committerAlex Legler <alex@a3li.li>2015-03-08 22:02:38 +0100
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Import existing advisories
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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
+<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
+<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
+
+<glsa id="200312-03">
+ <title>rsync: exploitable heap overflow</title>
+ <synopsis>
+ rsync contains a heap overflow vulnerability that can be used to execute
+ arbitrary code.
+ </synopsis>
+ <product type="ebuild">rsync</product>
+ <announced>2003-12-04</announced>
+ <revised>2003-12-04: 01</revised>
+ <access>remote</access>
+ <affected>
+ <package name="net-misc/rsync" auto="yes" arch="*">
+ <unaffected range="ge">2.5.7</unaffected>
+ <vulnerable range="lt">2.5.7</vulnerable>
+ </package>
+ </affected>
+ <background>
+ <p>
+ rsync is a popular file transfer package used to synchronize the Portage
+ tree.
+ </p>
+ </background>
+ <description>
+ <p>
+ Rsync version 2.5.6 contains a vulnerability that can be used to run
+ arbitrary code. The Gentoo infrastructure team has some reasonably good
+ forensic evidence that this exploit may have been used in combination with
+ the Linux kernel do_brk() vulnerability (see GLSA 200312-02) to exploit a
+ rsync.gentoo.org rotation server (see GLSA-200312-01.)
+ </p>
+ <p>
+ Please see http://lwn.net/Articles/61541/ for the security advisory released
+ by the rsync development team.
+ </p>
+ </description>
+ <impact type="high">
+ <p>
+ A remote attacker could execute arbitrary code with the permissions of the
+ root user.
+ </p>
+ </impact>
+ <workaround>
+ <p>
+ There is no known workaround at this time.
+ </p>
+ </workaround>
+ <resolution>
+ <p>
+ To address this vulnerability, all Gentoo users should read GLSA-200312-02
+ and ensure that all systems are upgraded to a version of the Linux kernel
+ without the do_brk() vulnerability, and upgrade to version 2.5.7 of rsync:
+ </p>
+ <code>
+ # emerge sync
+ # emerge -pv '&gt;=net-misc/rsync-2.5.7'
+ # emerge '&gt;=net-misc/rsync-2.5.7'
+ # emerge clean</code>
+ <p>
+ Review your /etc/rsync/rsyncd.conf configuration file; ensure that the use
+ chroot="no" command is commented out or removed, or change use chroot="no"
+ to use chroot="yes". Then, if necessary, restart rsyncd:
+ </p>
+ <code>
+ # /etc/init.d/rsyncd restart</code>
+ </resolution>
+ <references>
+ <uri link="http://rsync.samba.org/#security_dec03">Rsync Security Advisory</uri>
+ <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0962">CAN-2003-0962</uri>
+ <uri link="http://security.gentoo.org/glsa/glsa-200312-02.xml">GLSA-200312-02</uri>
+ <uri link="http://security.gentoo.org/glsa/glsa-200312-01.xml">GLSA-200312-01</uri>
+ </references>
+</glsa>