
CVE-2019-3829 – gnutls: use-after-free/double-free in certificate verification
https://notcve.org/view.php?id=CVE-2019-3829
27 Mar 2019 — A vulnerability was found in gnutls versions from 3.5.8 before 3.6.7. A memory corruption (double free) vulnerability in the certificate verification API. Any client or server application that verifies X.509 certificates with GnuTLS 3.5.8 or later is affected. Se ha descubierto una vulnerabilidad en gnutls, desde la versión 3.5.8 hasta antes de la 3.6.7. Hay una vulnerabilidad de corrupción de memoria (doble liberación o "double free") en la API de verificación de certificados. • http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00017.html • CWE-415: Double Free CWE-416: Use After Free •

CVE-2018-16868 – Slackware Security Advisory - gnutls Updates
https://notcve.org/view.php?id=CVE-2018-16868
03 Dec 2018 — A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in some cases downgrade any TLS connections to a vulnerable server. Se ha detectado un ataque de oráculo de relleno basado en canales laterales de tipo Bleichenbacher en la manera en la que gnutls maneja la verificación de los datos PKCS#... • http://cat.eyalro.net • CWE-203: Observable Discrepancy •

CVE-2018-10844 – gnutls: HMAC-SHA-256 vulnerable to Lucky thirteen attack due to not enough dummy function calls
https://notcve.org/view.php?id=CVE-2018-10844
22 Aug 2018 — It was found that the GnuTLS implementation of HMAC-SHA-256 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data using crafted packets. Se ha detectado que la implementación GnuTLS de HMAC-SHA-256 era vulnerable a un ataque de estilo Lucky Thirteen. Los atacantes remotos podrían utilizar este fallo para realizar ataques de distinción y de recuperación en texto plano media... • http://www.securityfocus.com/bid/105138 • CWE-327: Use of a Broken or Risky Cryptographic Algorithm CWE-385: Covert Timing Channel •

CVE-2018-10845 – gnutls: HMAC-SHA-384 vulnerable to Lucky thirteen attack due to use of wrong constant
https://notcve.org/view.php?id=CVE-2018-10845
22 Aug 2018 — It was found that the GnuTLS implementation of HMAC-SHA-384 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plain text recovery attacks via statistical analysis of timing data using crafted packets. Se ha detectado que la implementación GnuTLS de HMAC-SHA-384 era vulnerable a un ataque de estilo Lucky Thirteen. Los atacantes remotos podrían utilizar este fallo para realizar ataques de distinción y de recuperación en texto plano medi... • http://www.securityfocus.com/bid/105138 • CWE-327: Use of a Broken or Risky Cryptographic Algorithm CWE-385: Covert Timing Channel •

CVE-2018-10846 – gnutls: "Just in Time" PRIME + PROBE cache-based side channel attack can lead to plaintext recovery
https://notcve.org/view.php?id=CVE-2018-10846
22 Aug 2018 — A cache-based side channel in GnuTLS implementation that leads to plain text recovery in cross-VM attack setting was found. An attacker could use a combination of "Just in Time" Prime+probe attack in combination with Lucky-13 attack to recover plain text using crafted packets. Se ha detectado un canal lateral basado en memoria caché en la implementación GnuTLS que conduce a un ataque de recuperación de texto plano a través de una máquina virtual. Un atacante podría utilizar una combinación de un ataque "Jus... • http://www.securityfocus.com/bid/105138 • CWE-327: Use of a Broken or Risky Cryptographic Algorithm CWE-385: Covert Timing Channel •

CVE-2016-4456
https://notcve.org/view.php?id=CVE-2016-4456
08 Aug 2017 — The "GNUTLS_KEYLOGFILE" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem. La variable de entorno "GNUTLS_KEYLOGFILE" en gnutls 3.4.12 permite que atacantes remotos sobrescriban y corrompan archivos arbitrarios en el sistema de archivos. • http://www.openwall.com/lists/oss-security/2016/06/07/6 • CWE-20: Improper Input Validation •

CVE-2017-7507 – gnutls: Crash upon receiving well-formed status_request extension
https://notcve.org/view.php?id=CVE-2017-7507
14 Jun 2017 — GnuTLS version 3.5.12 and earlier is vulnerable to a NULL pointer dereference while decoding a status response TLS extension with valid contents. This could lead to a crash of the GnuTLS server application. GnuTLS versión 3.5.12 y anteriores, es vulnerable a una desreferencia del puntero NULL durante la descodificación de una extensión TLS de respuesta de estado con contenido válido. Esto podría conllevar a un bloqueo de la aplicación del servidor GnuTLS. A null pointer dereference flaw was found in the way... • http://www.debian.org/security/2017/dsa-3884 • CWE-476: NULL Pointer Dereference •

CVE-2017-7869 – gnutls: Out-of-bounds write related to the cdk_pkt_read function (GNUTLS-SA-2017-3)
https://notcve.org/view.php?id=CVE-2017-7869
14 Apr 2017 — GnuTLS before 2017-02-20 has an out-of-bounds write caused by an integer overflow and heap-based buffer overflow related to the cdk_pkt_read function in opencdk/read-packet.c. This issue (which is a subset of the vendor's GNUTLS-SA-2017-3 report) is fixed in 3.5.10. GnuTLS en versiones anteriores a 20-02-2017 tiene una escritura fuera de límites provocado por un desbordamiento de entero y desbordamiento de búfer basado en memoria dinámica en relación con la función cdk_pkt_read en opencdk/read-packet.c. Est... • http://www.securityfocus.com/bid/97040 • CWE-787: Out-of-bounds Write •

CVE-2017-5334 – gnutls: Double-free while decoding crafted X.509 certificates
https://notcve.org/view.php?id=CVE-2017-5334
13 Jan 2017 — Double free vulnerability in the gnutls_x509_ext_import_proxy function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote attackers to have unspecified impact via crafted policy language information in an X.509 certificate with a Proxy Certificate Information extension. La vulnerabilidad de liberación doble en la función gnutls_x509_ext_import_proxy de GnuTLS en versiones anteriores a 3.3.26 y 3.5.x en versiones anteriores a 3.5.8 permite a los atacantes remotos tener un impacto no especificado a ... • http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00005.html • CWE-415: Double Free CWE-416: Use After Free •

CVE-2017-5335 – gnutls: Out of memory while parsing crafted OpenPGP certificate
https://notcve.org/view.php?id=CVE-2017-5335
13 Jan 2017 — The stream reading functions in lib/opencdk/read-packet.c in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allow remote attackers to cause a denial of service (out-of-memory error and crash) via a crafted OpenPGP certificate. Las funciones de lectura de flujo en lib/opencdk/read-packet.c en GnuTLS en versiones anteriores a 3.3.26 y 3.5.x en versiones anteriores a 3.5.8 permiten a atacantes remotos provocar una denegación de servicio (fallo de memoria y error) Certificado OpenPGP. Stefan Buehler discovered tha... • http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00005.html • CWE-125: Out-of-bounds Read CWE-400: Uncontrolled Resource Consumption •