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Debian Security Advisory DSA 1935-1 (gnutls13 gnutls26)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update to gnutls13 gnutls26 announced via advisory DSA 1935-1.
Insight
Insight
Dan Kaminsky and Moxie Marlinspike discovered that gnutls, an implementation of the TLS/SSL protocol, does not properly handle a '\0' character in a domain name in the subject's Common Name or Subject Alternative Name (SAN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority. (CVE-2009-2730) In addition, with this update, certificates with MD2 hash signatures are no longer accepted since they're no longer considered cryptograhically secure. It only affects the oldstable distribution (etch).(CVE-2009-2409) For the oldstable distribution (etch), these problems have been fixed in version 1.4.4-3+etch5 for gnutls13. For the stable distribution (lenny), these problems have been fixed in version 2.4.2-6+lenny2 for gnutls26. For the testing distribution (squeeze), and the unstable distribution (sid), these problems have been fixed in version 2.8.3-1 for gnutls26. We recommend that you upgrade your gnutls13/gnutls26 packages.
Solution
Solution
https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201935-1