Slackware Security Advisory - New gnutls packages are available for Slackware 12.1, 12.2, 13.0, 13.1, and 13.37 to fix security issues. Related CVE Numbers: CVE-2011-4128,CVE-2012-1569,CVE-2012-1573,CVE-2013-1619,CVE-2013-2116.
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Gentoo Linux Security Advisory 201206-18 - Multiple vulnerabilities have been found in GnuTLS, allowing a remote attacker to perform man-in-the-middle or Denial of Service attacks. Versions less than 2.12.18 are affected.
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Red Hat Security Advisory 2012-0531-01 - The rhev-hypervisor6 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions. A flaw was found in the way libtasn1 decoded DER data. An attacker could create carefully-crafted DER encoded input that, when parsed by an application that uses libtasn1, could cause the application to crash.
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Red Hat Security Advisory 2012-0488-01 - The rhev-hypervisor5 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. A flaw was found in the way libtasn1 decoded DER data. An attacker could create a carefully-crafted X.509 certificate that, when parsed by an application that uses GnuTLS, could cause the application to crash.
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Ubuntu Security Notice 1418-1 - Alban Crequy discovered that the GnuTLS library incorrectly checked array bounds when copying TLS session data. A remote attacker could crash a client application, leading to a denial of service, as the client application prepared for TLS session resumption. Matthew Hall discovered that the GnuTLS library incorrectly handled TLS records. A remote attacker could crash client and server applications, leading to a denial of service, by sending a crafted TLS record. Various other issues were also addressed.
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Mandriva Linux Security Advisory 2012-040 - gnutls_cipher.c in libgnutls in GnuTLS before 2.12.17 and 3.x before 3.0.15 does not properly handle data encrypted with a block cipher, which allows remote attackers to cause a denial of service (heap memory corruption and application crash) via a crafted record, as demonstrated by a crafted GenericBlockCipher structure. The updated packages have been patched to correct this issue. The GnuTLS packages for Mandriva Linux 2011 has been upgraded to the 2.12.8 version due to problems with the test suite while building it, additionally a new dependency was added on p11-kit for the PKCS #11 support.
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Red Hat Security Advisory 2012-0429-01 - The GnuTLS library provides support for cryptographic algorithms and for protocols such as Transport Layer Security. A flaw was found in the way GnuTLS decrypted malformed TLS records. This could cause a TLS/SSL client or server to crash when processing a specially-crafted TLS record from a remote TLS/SSL connection peer. A boundary error was found in the gnutls_session_get_data() function. A malicious TLS/SSL server could use this flaw to crash a TLS/SSL client or, possibly, execute arbitrary code as the client, if the client passed a fixed-sized buffer to gnutls_session_get_data() before checking the real size of the session data provided by the server.
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Red Hat Security Advisory 2012-0428-01 - The GnuTLS library provides support for cryptographic algorithms and for protocols such as Transport Layer Security. GnuTLS includes libtasn1, a library developed for ASN.1 structures management that includes DER encoding and decoding. A flaw was found in the way GnuTLS decrypted malformed TLS records. This could cause a TLS/SSL client or server to crash when processing a specially-crafted TLS record from a remote TLS/SSL connection peer.
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Debian Linux Security Advisory 2441-1 - Matthew Hall discovered that GNUTLS does not properly handle truncated GenericBlockCipher structures nested inside TLS records, leading to crashes in applications using the GNUTLS library.
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