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.
13905ed94cfe14682c1c5c14c16132d41f098ff84047a15e976344d2814c839dGentoo Linux Security Advisory 201209-12 - A vulnerability in Libtasn1 might cause a Denial of Service condition. Versions less than 2.12 are affected.
736f35308c66bdc32ea63c34299f84227416289d28072988461fe864c4870e18Ubuntu Security Notice 1436-1 - Matthew Hall discovered that Libtasn1 incorrectly handled certain large values. An attacker could exploit this with a specially crafted ASN.1 structure and cause a denial of service, or possibly execute arbitrary code.
cacfb0513c2cb7eaf9dfbfe2340bef9d7ab9785a3259c68abb05b1c3ff3884cbRed 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.
3ddbb5cdb4ed9bf2a1fdb71d362befb26520ec4f608d2488633e73fd436ff5eeRed 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.
51a71be200b7104a0b6c3eddd65b911675386eeaa8bb6ce75c2ab67983a394e8Mandriva Linux Security Advisory 2012-039 - The asn1_get_length_der function in decoding.c in GNU Libtasn1 before 2.12, as used in GnuTLS before 3.0.16 and other products, does not properly handle certain large length values, which allows remote attackers to cause a denial of service (heap memory corruption and application crash) or possibly have unspecified other impact via a crafted ASN.1 structure. The updated packages have been patched to correct this issue.
d68b51c860745669ed80a9760b3d0f8d33e9fbc141c0beef7e8da27438734c22Red Hat Security Advisory 2012-0427-01 - libtasn1 is a library developed for ASN.1 structures management that includes DER encoding and decoding. 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.
e8df410e6f95ead4299aba87bbd6dc1d77274b0ceabe9b81f50fea399018c35bRed 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.
1474501c578f805f223062c5d3b5a64942c2f200a99dc5147eb491ba6624c86bDebian Linux Security Advisory 2440-1 - Matthew Hall discovered that many callers of the asn1_get_length_der function did not check the result against the overall buffer length before processing it further. This could result in out-of-bounds memory accesses and application crashes. Applications using GNUTLS are exposed to this issue.
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