CVSS: 7.8EPSS: 0%CPEs: 22EXPL: 0CVE-2017-17806 – kernel: HMAC implementation does not validate that the underlying cryptographic hash algorithm is unkeyed allowing local attackers to cause denial-of-service
https://notcve.org/view.php?id=CVE-2017-17806
The HMAC implementation (crypto/hmac.c) in the Linux kernel before 4.14.8 does not validate that the underlying cryptographic hash algorithm is unkeyed, allowing a local attacker able to use the AF_ALG-based hash interface (CONFIG_CRYPTO_USER_API_HASH) and the SHA-3 hash algorithm (CONFIG_CRYPTO_SHA3) to cause a kernel stack buffer overflow by executing a crafted sequence of system calls that encounter a missing SHA-3 initialization. La implementación HMAC (crypto/hmac.c) en el kernel de Linux en versiones anteriores a la 4.14.8 no valida que el algoritmo de hash criptográfico subyacente no tenga clave, lo que permite que un atacante local capaz de utilizar la interfaz hash basada en AF_ALG (CONFIG_CRYPTO_USER_API_HASH) y el algoritmo hash basado en SHA-3 (CONFIG_CRYPTO_SHA3) provoque un desbordamiento de búfer de pila de kernel ejecutando una secuencia manipulada de llamadas al sistema para encontrar una inicialización SHA-3 ausente. The HMAC implementation (crypto/hmac.c) in the Linux kernel, before 4.14.8, does not validate that the underlying cryptographic hash algorithm is unkeyed. This allows a local attacker, able to use the AF_ALG-based hash interface (CONFIG_CRYPTO_USER_API_HASH) and the SHA-3 hash algorithm (CONFIG_CRYPTO_SHA3), to cause a kernel stack buffer overflow by executing a crafted sequence of system calls that encounter a missing SHA-3 initialization. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=af3ff8045bbf3e32f1a448542e73abb4c8ceb6f1 http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00006.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00008.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00014.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00016.html http://www.securityfocus. • CWE-391: Unchecked Error Condition CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 22EXPL: 0CVE-2017-17805 – kernel: Salsa20 encryption algorithm does not correctly handle zero-length inputs allowing local attackers to cause denial-of-service
https://notcve.org/view.php?id=CVE-2017-17805
The Salsa20 encryption algorithm in the Linux kernel before 4.14.8 does not correctly handle zero-length inputs, allowing a local attacker able to use the AF_ALG-based skcipher interface (CONFIG_CRYPTO_USER_API_SKCIPHER) to cause a denial of service (uninitialized-memory free and kernel crash) or have unspecified other impact by executing a crafted sequence of system calls that use the blkcipher_walk API. Both the generic implementation (crypto/salsa20_generic.c) and x86 implementation (arch/x86/crypto/salsa20_glue.c) of Salsa20 were vulnerable. El algoritmo de cifrado Salsa20 en el kernel de Linux en versiones anteriores a la 4.14.8 no maneja correctamente las entradas de longitud cero, lo que permite a un atacante local capaz de utilizar la interfaz skcipher basada en AF_ALG (CONFIG_CRYPTO_USER_API_SKCIPHER) provocar una denegación de servicio (liberación de memoria no inicializada y fallo del kernel) o provocar otro impacto no especificado ejecutando una secuencia manipulada de llamadas al sistema que utilizan la API blkcipher_walk. Tanto la implementación genérica (crypto/salsa20_generic.c) como la implementación x86 (arch/x86/crypto/salsa20_glue.c) de Salsa20 eran vulnerables. The Salsa20 encryption algorithm in the Linux kernel, before 4.14.8, does not correctly handle zero-length inputs. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ecaaab5649781c5a0effdaf298a925063020500e http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00006.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00008.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00014.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00016.html http://www.securityfocus. • CWE-20: Improper Input Validation •
CVSS: 7.5EPSS: 2%CPEs: 104EXPL: 0CVE-2016-5285 – nss: Missing NULL check in PK11_SignWithSymKey / ssl3_ComputeRecordMACConstantTime causes server crash
https://notcve.org/view.php?id=CVE-2016-5285
A Null pointer dereference vulnerability exists in Mozilla Network Security Services due to a missing NULL check in PK11_SignWithSymKey / ssl3_ComputeRecordMACConstantTime, which could let a remote malicious user cause a Denial of Service. Existe una vulnerabilidad de desreferencia de puntero nulo en Mozilla Network Security Services debido a una falta de verificación NULL en PK11_SignWithSymKey / ssl3_ComputeRecordMACConstantTime, lo que podría permitir que un usuario malintencionado remoto cause una Denegación de servicio. A NULL pointer dereference flaw was found in the way NSS handled invalid Diffie-Hellman keys. A remote client could use this flaw to crash a TLS/SSL server using NSS. • http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00037.html http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00049.html http://rhn.redhat.com/errata/RHSA-2016-2779.html http://www.securityfocus.com/bid/94349 http://www.ubuntu.com/usn/USN-3163-1 https://bto.bluecoat.com/security-advisory/sa137 https://bugzilla.mozilla.org/show_bug.cgi?id=1306103 https://security.gentoo.org/glsa&#x • CWE-476: NULL Pointer Dereference •
CVSS: 8.8EPSS: 10%CPEs: 17EXPL: 0CVE-2016-5131 – libxml2: Use after free triggered by XPointer paths beginning with range-to
https://notcve.org/view.php?id=CVE-2016-5131
Use-after-free vulnerability in libxml2 through 2.9.4, as used in Google Chrome before 52.0.2743.82, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the XPointer range-to function. Vulnerabilidad de uso después de liberación de memoria en libxml2 hasta la versión 2.9.4, como se utiliza en Google Chrome en versiones anteriores a 52.0.2743.82, permite a atacantes remotos provocar una denegación de servicio o posiblemente tener otro impacto no especificado a través de vectores relacionados con la función range-to XPointer. • http://googlechromereleases.blogspot.com/2016/07/stable-channel-update.html http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html http://lists.apple.com/archives/security-announce/2016/Sep/msg00008.html http://lists.apple.com/archives/security-announce/2016/Sep/msg00010.html http://lists.apple.com/archives/security-announce/2016/Sep/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-07/m • CWE-416: Use After Free •
CVSS: 10.0EPSS: 97%CPEs: 12EXPL: 7CVE-2016-3714 – ImageMagick Improper Input Validation Vulnerability
https://notcve.org/view.php?id=CVE-2016-3714
The (1) EPHEMERAL, (2) HTTPS, (3) MVG, (4) MSL, (5) TEXT, (6) SHOW, (7) WIN, and (8) PLT coders in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allow remote attackers to execute arbitrary code via shell metacharacters in a crafted image, aka "ImageTragick." Los codificadores (1) EPHEMERAL, (2) HTTPS, (3) MVG, (4) MSL, (5) TEXT, (6) SHOW, (7) WIN y (8) PLT en ImageMagick en versiones anteriores a 6.9.3-10 y 7.x en versiones anteriores a 7.0.1-1 permiten a atacantes remotos ejecutar código arbitrario a través de metacaracteres shell en una imagen manipulada, también conocido como "ImageTragick". It was discovered that ImageMagick did not properly sanitize certain input before passing it to the delegate functionality. A remote attacker could create a specially crafted image that, when processed by an application using ImageMagick or an unsuspecting user using the ImageMagick utilities, would lead to arbitrary execution of shell commands with the privileges of the user running the application. ImageMagick contains an improper input validation vulnerability that affects the EPHEMERAL, HTTPS, MVG, MSL, TEXT, SHOW, WIN, and PLT coders. • https://www.exploit-db.com/exploits/39767 https://www.exploit-db.com/exploits/39791 https://github.com/Hood3dRob1n/CVE-2016-3714 https://github.com/jpeanut/ImageTragick-CVE-2016-3714-RShell https://github.com/chusiang/CVE-2016-3714.ansible.role https://github.com/JoshMorrison99/CVE-2016-3714 https://github.com/tommiionfire/CVE-2016-3714 http://git.imagemagick.org/repos/ImageMagick/blob/a01518e08c840577cabd7d3ff291a9ba735f7276/ChangeLog http://lists.opensuse.org/opensuse-security-announce/2016-05/msg • CWE-20: Improper Input Validation •