GnuTLS: Multiple vulnerabilities

GnuTLS: Multiple vulnerabilities Multiple vulnerabilities have been found in GnuTLS, allowing a remote attacker to perform man-in-the-middle or Denial of Service attacks. GnuTLS June 23, 2012 June 23, 2012: 1 281224 292025 389947 409287 remote 2.12.18 2.12.18

GnuTLS is an Open Source implementation of the TLS 1.2 and SSL 3.0 protocols.

Multiple vulnerabilities have been found in GnuTLS:

An error in libgnutls does not properly sanitize "\0" characters from certificate fields (CVE-2009-2730).
An error in the TLS and SSL protocols mistreats renegotiation handshakes (CVE-2009-3555).
A boundary error in the "gnutls_session_get_data()" function in gnutls_session.c could cause a buffer overflow (CVE-2011-4128).
An error in the "_gnutls_ciphertext2compressed()" function in gnutls_cipher.c could cause memory corruption (CVE-2012-1573).

A remote attacker could perform man-in-the-middle attacks to spoof arbitrary SSL servers or cause a Denial of Service condition in applications linked against GnuTLS.

There is no known workaround at this time.

All GnuTLS users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-libs/gnutls-2.12.18"

CVE-2009-2730 CVE-2009-3555 CVE-2011-4128 CVE-2012-1573 ackle ackle