-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------ Debian Security Advisory DSA-1719-1 security@debian.org http://www.debian.org/security/ Florian Weimer February 10, 2009 http://www.debian.org/security/faq - ------------------------------------------------------------------------ Package : gnutls13 Vulnerability : design flaw Problem type : remote Debian-specific: no CVE Id(s) : CVE-2008-4989 Debian Bug : 505360 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. Upgrade instructions - -------------------- wget url will fetch the file for you dpkg -i file.deb will install the referenced file. If you are using the apt-get package manager, use the line for sources.list as given below: apt-get update will update the internal database apt-get upgrade will install corrected packages You may use an automated update by adding the resources from the footer to the proper configuration. Debian GNU/Linux 4.0 alias etch - ------------------------------- Source archives: http://security.debian.org/pool/updates/main/g/gnutls13/gnutls13_1.4.4-3+etch2.dsc Size/MD5 checksum: 967 97d676fb2a9de5a2706da79baf5fc53f http://security.debian.org/pool/updates/main/g/gnutls13/gnutls13_1.4.4-3+etch3.diff.gz Size/MD5 checksum: 20931 d1f9a5483e2ff3b6f799f14cc90e0ba4 http://security.debian.org/pool/updates/main/g/gnutls13/gnutls13_1.4.4.orig.tar.gz Size/MD5 checksum: 4752009 c06ada020e2b69caa51833175d59f8b2 http://security.debian.org/pool/updates/main/g/gnutls13/gnutls13_1.4.4-3+etch2.diff.gz Size/MD5 checksum: 19550 d362897a57e2bac2f059413ea29540be http://security.debian.org/pool/updates/main/g/gnutls13/gnutls13_1.4.4-3+etch3.dsc Size/MD5 checksum: 967 c523874d91b1d19b0a59c6d51ada21e6 Architecture independent packages: http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-doc_1.4.4-3+etch2_all.deb Size/MD5 checksum: 2315360 2892fedc83604472a40cb9e16b64fad2 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