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: 7.8EPSS: 0%CPEs: 9EXPL: 0CVE-2018-5344 – kernel: drivers/block/loop.c mishandles lo_release serialization allowing denial-of-service
https://notcve.org/view.php?id=CVE-2018-5344
In the Linux kernel through 4.14.13, drivers/block/loop.c mishandles lo_release serialization, which allows attackers to cause a denial of service (__lock_acquire use-after-free) or possibly have unspecified other impact. En el kernel de Linux hasta la versión 4.14.13, drivers/block/loop.c gestiona de manera incorrecta la serialización de lo_release, lo que permite que atacantes provoquen una denegación de servicio (uso de memoria previamente liberada de __lock_acquire) o, posiblemente, otro impacto sin especificar. A flaw was found in the Linux kernel's handling of loopback devices. An attacker, who has permissions to setup loopback disks, may create a denial of service or other unspecified actions. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ae6650163c66a7eff1acd6eb8b0f752dcfa8eba5 http://www.securityfocus.com/bid/102503 https://access.redhat.com/errata/RHSA-2018:2948 https://access.redhat.com/errata/RHSA-2018:3083 https://access.redhat.com/errata/RHSA-2018:3096 https://github.com/torvalds/linux/commit/ae6650163c66a7eff1acd6eb8b0f752dcfa8eba5 https://usn.ubuntu.com/3583-1 https://usn.ubuntu.com/3583-2 https://usn.ubuntu.com/3617-1 https://usn.ubuntu • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •
CVSS: 7.2EPSS: 0%CPEs: 11EXPL: 0CVE-2017-16532
https://notcve.org/view.php?id=CVE-2017-16532
The get_endpoints function in drivers/usb/misc/usbtest.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted USB device. La función get_endpoints en drivers/usb/misc/usbtest.c en el kernel de Linux, en versiones hasta la 4.13.11, permite que los usuarios locales provoquen una denegación de servicio (desreferencia de puntero NULL y cierre inesperado del sistema) o, posiblemente, causen otros impactos no especificados mediante llamadas del sistema manipuladas. • https://github.com/torvalds/linux/commit/7c80f9e4a588f1925b07134bb2e3689335f6c6d8 https://groups.google.com/d/msg/syzkaller/l3870gs3LhA/y79DYQdFBAAJ https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html https://usn.ubuntu.com/3617-1 https://usn.ubuntu.com/3617-2 https://usn.ubuntu.com/3617-3 https://usn.ubuntu.com/3619-1 https://usn.ubuntu.com/3619-2 https://usn.ubuntu.com/3754-1 • CWE-476: NULL Pointer Dereference •
CVSS: 7.2EPSS: 0%CPEs: 1EXPL: 0CVE-2017-16649
https://notcve.org/view.php?id=CVE-2017-16649
The usbnet_generic_cdc_bind function in drivers/net/usb/cdc_ether.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (divide-by-zero error and system crash) or possibly have unspecified other impact via a crafted USB device. La función usbnet_generic_cdc_bind en drivers/net/usb/cdc_ether.c en el kernel de Linux, en versiones hasta la 4.13.11, permite que los usuarios locales provoquen una denegación de servicio (error de división por cero y cierre inesperado del sistema) o, posiblemente, causen otros impactos no especificados mediante un dispositivo USB manipulado. • http://www.securityfocus.com/bid/101761 https://groups.google.com/d/msg/syzkaller/0e0gmaX9R0g/9Me9JcY2BQAJ https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html https://patchwork.ozlabs.org/patch/834771 https://usn.ubuntu.com/3617-1 https://usn.ubuntu.com/3617-2 https://usn.ubuntu.com/3617-3 https://usn.ubuntu.com/3619-1 https://usn.ubuntu.com/3619-2 https://usn.ubuntu.com/3822-1 https://usn.ubuntu.com/3822-2 • CWE-369: Divide By Zero •
CVSS: 6.5EPSS: 0%CPEs: 2EXPL: 0CVE-2017-17741
https://notcve.org/view.php?id=CVE-2017-17741
The KVM implementation in the Linux kernel through 4.14.7 allows attackers to obtain potentially sensitive information from kernel memory, aka a write_mmio stack-based out-of-bounds read, related to arch/x86/kvm/x86.c and include/trace/events/kvm.h. La implementación KVM en el kernel de Linux hasta la versión 4.14.7 permite que atacantes remotos obtengan información potencialmente sensible de la memoria del kernel. Esto también se conoce como una lectura fuera de límites basada en pila write_mmio y está relacionado con arch/x86/kvm/x86.c e include/trace/events/kvm.h. • http://www.securityfocus.com/bid/102227 https://lists.debian.org/debian-lts-announce/2018/01/msg00004.html https://usn.ubuntu.com/3617-1 https://usn.ubuntu.com/3617-2 https://usn.ubuntu.com/3617-3 https://usn.ubuntu.com/3619-1 https://usn.ubuntu.com/3619-2 https://usn.ubuntu.com/3620-1 https://usn.ubuntu.com/3620-2 https://usn.ubuntu.com/3632-1 https://www.debian.org/security/2017/dsa-4073 https://www.debian.org/security/2018/dsa-4082&# • CWE-125: Out-of-bounds Read •