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Debian Security Advisory DSA 1719-1 (gnutls13)
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 announced via advisory DSA 1719-1.
Insight
Insight
Martin von Gagern discovered that GNUTLS, an implementation of the TLS/SSL protocol, handles verification of X.509 certificate chains incorrectly if a self-signed certificate is configured as a trusted certificate. This could cause clients to accept forged server certificates as genuine. (CVE-2008-4989) In addition, this update tightens the checks for X.509v1 certificates which causes GNUTLS to reject certain certificate chains it accepted before. (In certificate chain processing, GNUTLS does not recognize X.509v1 certificates as valid unless explicitly requested by the application.) For the stable distribution (etch), this problem has been fixed in version 1.4.4-3+etch3. For the unstable distribution (sid), this problem has been fixed in version 2.4.2-3 of the gnutls26 package. We recommend that you upgrade your gnutls13 packages.
Solution
Solution
https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201719-1