Summary
Several vulnerabilities were discovered in the TLS/SSL protocol. This update addresses these protocol vulnerabilities in lighttpd.
CVE-2009-3555
Marsh Ray, Steve Dispensa, and Martin Rex discovered that the TLS and SSLv3 protocols do not properly associate renegotiation handshakes with an existing connection, which allows man-in-the-middle attackers to insert data into HTTPS sessions. This issue is solved in lighttpd by disabling client initiated renegotiation by default.
Those users that do actually need such renegotiations, can reenable them via the new ssl.disable-client-renegotiation parameter.
CVE-2012-4929Juliano Rizzo and Thai Duong discovered a weakness in the TLS/SSL protocol when using compression. This side channel attack, dubbed CRIME
, allows eavesdroppers to gather information to recover the original plaintext in the protocol. This update disables compression.
Solution
For the stable distribution (squeeze), these problems have been fixed in version 1.4.28-2+squeeze1.2.
For the testing distribution (wheezy), and the unstable distribution (sid) these problems have been fixed in version 1.4.30-1.
We recommend that you upgrade your lighttpd packages.
Insight
lighttpd is a small webserver and fast webserver developed with security in mind and a lot of features.
It has support for
* CGI, FastCGI and SSI
* virtual hosts
* URL rewriting
* authentication (plain files, htpasswd, ldap)
* transparent content compression
* conditional configuration
and configuration is straight-forward and easy.
Affected
lighttpd on Debian Linux
Detection
This check tests the installed software version using the apt package manager.
References
Updated on 2015-03-25
Severity
Classification
-
CVE CVE-2009-3555, CVE-2012-4929 -
CVSS Base Score: 5.8
AV:N/AC:M/Au:N/C:N/I:P/A:P
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