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Gentoo Linux Security Advisory GLSA 200804-08 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: lighttpd: Multiple vulnerabilities |
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Date: April 10, 2008 |
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Bugs: #212930, #214892 |
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ID: 200804-08 |
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Synopsis |
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======== |
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|
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Multiple vulnerabilities in lighttpd may lead to information disclosure |
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or a Denial of Service. |
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Background |
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========== |
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|
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lighttpd is a lightweight high-performance web server. |
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 www-servers/lighttpd < 1.4.19-r2 >= 1.4.19-r2 |
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Description |
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=========== |
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|
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Julien Cayzax discovered that an insecure default setting exists in |
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mod_userdir in lighttpd. When userdir.path is not set the default value |
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used is $HOME. It should be noted that the "nobody" user's $HOME is "/" |
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(CVE-2008-1270). An error also exists in the SSL connection code which |
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can be triggered when a user prematurely terminates his connection |
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(CVE-2008-1531). |
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|
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Impact |
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====== |
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|
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A remote attacker could exploit the first vulnerability to read |
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arbitrary files. The second vulnerability can be exploited by a remote |
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attacker to cause a Denial of Service by terminating a victim's SSL |
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connection. |
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Workaround |
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========== |
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As a workaround for CVE-2008-1270 you can set userdir.path to a |
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sensible value, e.g. "public_html". |
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Resolution |
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========== |
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All lighttpd users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=www-servers/lighttpd-1.4.19-r2" |
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References |
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========== |
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[ 1 ] CVE-2008-1270 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1270 |
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[ 2 ] CVE-2008-1531 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1531 |
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200804-08.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2008 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/2.5 |
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