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author | 2015-03-08 22:02:38 +0100 | |
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committer | 2015-03-08 22:02:38 +0100 | |
commit | a24567fbc43f221b14e805f9bc0b7c6d16911c46 (patch) | |
tree | 910a04fe6ee560ac0eebac55f3cd2781c3519760 /glsa-200405-07.xml | |
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Import existing advisories
Diffstat (limited to 'glsa-200405-07.xml')
-rw-r--r-- | glsa-200405-07.xml | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/glsa-200405-07.xml b/glsa-200405-07.xml new file mode 100644 index 00000000..c224178f --- /dev/null +++ b/glsa-200405-07.xml @@ -0,0 +1,66 @@ +<?xml version="1.0" encoding="utf-8"?> +<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?> +<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?> +<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> + +<glsa id="200405-07"> + <title>Exim verify=header_syntax buffer overflow</title> + <synopsis> + When the verify=header_syntax option is set, there is a buffer overflow in + Exim that allows remote execution of arbitrary code. + </synopsis> + <product type="ebuild">Exim</product> + <announced>May 14, 2004</announced> + <revised>May 14, 2004: 01</revised> + <bug>50217</bug> + <access>remote </access> + <affected> + <package name="mail-mta/exim" auto="yes" arch="*"> + <unaffected range="ge">4.33-r1</unaffected> + <vulnerable range="le">4.33</vulnerable> + </package> + </affected> + <background> + <p> + Exim is an highly configurable message transfer agent (MTA) developed at + the University of Cambridge. + </p> + </background> + <description> + <p> + When the option "verify = header_syntax" is used in an ACL in the + configuration file, Exim is vulnerable to a buffer overflow attack that can + be triggered remotely by sending malicious headers in an email message. + Note that this option is not enabled in Exim's default configuration file. + </p> + </description> + <impact type="high"> + <p> + This vulnerability can be exploited to trigger a denial of service attack + and potentially execute arbitrary code with the rights of the user used by + the Exim daemon (by default this is the "mail" user in Gentoo Linux). + </p> + </impact> + <workaround> + <p> + Make sure the verify=header_syntax option is not used in your exim.conf + file. + </p> + </workaround> + <resolution> + <p> + All users of Exim should upgrade to the latest stable version: + </p> + <code> + # emerge sync + + # emerge -pv ">=mail-mta/exim-4.33-r1" + # emerge ">=mail-mta/exim-4.33-r1"</code> + </resolution> + <references> + <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0400">CAN-2004-0400</uri> + </references> + <metadata tag="submitter"> + koon + </metadata> +</glsa> |