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| author | koobs <koobs@FreeBSD.org> | 2014-01-25 17:24:38 +0800 |
|---|---|---|
| committer | koobs <koobs@FreeBSD.org> | 2014-01-25 17:24:38 +0800 |
| commit | 70b325d03f4c6f97baba7e9dd15a843ab9f1aa3f (patch) | |
| tree | 2f7f7bb55322042f141d4fa070bd89c2418f8453 /security | |
| parent | cf1583e5a6912c37ec1fbb5f614c57cca78e38c3 (diff) | |
| download | freebsd-ports-gnome-70b325d03f4c6f97baba7e9dd15a843ab9f1aa3f.tar.gz freebsd-ports-gnome-70b325d03f4c6f97baba7e9dd15a843ab9f1aa3f.tar.zst freebsd-ports-gnome-70b325d03f4c6f97baba7e9dd15a843ab9f1aa3f.zip | |
Document Varnish HTTP Cache < 3.0.5 DoS Vulnerability
Reviewed by: remko
Diffstat (limited to 'security')
| -rw-r--r-- | security/vuxml/vuln.xml | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/security/vuxml/vuln.xml b/security/vuxml/vuln.xml index 0a0419e63e10..cbdcd3b5e757 100644 --- a/security/vuxml/vuln.xml +++ b/security/vuxml/vuln.xml @@ -51,6 +51,52 @@ Note: Please add new entries to the beginning of this file. --> <vuxml xmlns="http://www.vuxml.org/apps/vuxml-1"> + <vuln vid="d9dbe6e8-84da-11e3-98bd-080027f2d077"> + <topic>varnish -- DoS vulnerability in Varnish HTTP cache</topic> + <affects> + <package> + <name>varnish</name> + <range><lt>3.0.5</lt></range> + </package> + </affects> + <description> + <body xmlns="http://www.w3.org/1999/xhtml"> + <p>Varnish Cache Project reports:</p> + <blockquote cite="https://www.varnish-cache.org/lists/pipermail/varnish-announce/2013-October/000686.html"> + <p>If Varnish receives a certain illegal request, and the subroutine + 'vcl_error{}' restarts the request, the varnishd worker process + will crash with an assert. + </p> + <p>The varnishd management process will restart the worker process, but + there will be a brief interruption of service and the cache will be + emptied, causing more traffic to go to the backend. + </p> + <p>We are releasing this advisory because restarting from vcl_error{} is both fairly common and documented.</p> + <p>This is purely a denial of service vulnerability, there is no risk of privilege escalation.</p> + <p>Workaround</p> + <p>Insert this at the top of your VCL file:</p> + <pre> + sub vcl_error { + if (obj.status == 400 || obj.status == 413) { + return(deliver); + } + } + + Or add this test at the top of your existing vcl_error{}. + </pre> + </blockquote> + </body> + </description> + <references> + <cvename>CVE-2013-4484</cvename> + <mlist>https://www.varnish-cache.org/lists/pipermail/varnish-announce/2013-October/000686.html</mlist> + </references> + <dates> + <discovery>2013-10-30</discovery> + <entry>2014-01-25</entry> + </dates> + </vuln> + <vuln vid="c0ef849e-84ac-11e3-bec4-9c4e36909cc0"> <topic>linux-flashplugin -- multiple vulnerabilities</topic> <affects> |