CVSS: 10.0EPSS: 95%CPEs: 66EXPL: 0CVE-2017-18017 – kernel: netfilter: use-after-free in tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c
https://notcve.org/view.php?id=CVE-2017-18017
The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before 4.11, and 4.9.x before 4.9.36, allows remote attackers to cause a denial of service (use-after-free and memory corruption) or possibly have unspecified other impact by leveraging the presence of xt_TCPMSS in an iptables action. La función tcpmss_mangle_packet en net/netfilter/xt_TCPMSS.c en el kernel de Linux, en versiones anteriores a la 4.11 y en versiones 4.9.x anteriores a la 4.9.36, permite que atacantes remotos provoquen una denegación de servicio (uso de memoria previamente liberada y corrupción de memoria) o, posiblemente, otro tipo de impacto sin especificar aprovechando la presencia de xt_TCPMSS en una acción iptables. The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before 4.11, and 4.9.x before 4.9.36, allows remote attackers to cause a denial of service (use-after-free and memory corruption) or possibly have unspecified other impact by leveraging the presence of xt_TCPMSS in an iptables action. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2638fd0f92d4397884fd991d8f4925cb3f081901 http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00008.html http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00013.html http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00015.html http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00038.html http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00047.html http://lists.opensuse.org • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2017-17975
https://notcve.org/view.php?id=CVE-2017-17975
Use-after-free in the usbtv_probe function in drivers/media/usb/usbtv/usbtv-core.c in the Linux kernel through 4.14.10 allows attackers to cause a denial of service (system crash) or possibly have unspecified other impact by triggering failure of audio registration, because a kfree of the usbtv data structure occurs during a usbtv_video_free call, but the usbtv_video_fail label's code attempts to both access and free this data structure. Uso de memoria previamente liberada en la función usbtv_probe en drivers/media/usb/usbtv/usbtv-core.c en el kernel de Linux hasta la versión 4.14.10 permite que atacantes provoquen una denegación de servicio (cierre inesperado del sistema) o, posiblemente, causen otro tipo de impacto sin especificar desencadenando un error de registro de audio. Esto se debe a que un kfree de la estructura de datos usbtv ocurre durante una llamada usbtv_video_free, pero el código de la etiqueta usbtv_video_fail intenta acceder y liberar esta estructura de datos. • http://linuxtesting.org/pipermail/ldv-project/2017-November/001008.html http://www.securityfocus.com/bid/102330 https://usn.ubuntu.com/3653-1 https://usn.ubuntu.com/3653-2 https://usn.ubuntu.com/3654-1 https://usn.ubuntu.com/3654-2 https://usn.ubuntu.com/3656-1 https://usn.ubuntu.com/3657-1 https://www.debian.org/security/2018/dsa-4188 • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2017-17862
https://notcve.org/view.php?id=CVE-2017-17862
kernel/bpf/verifier.c in the Linux kernel through 4.14.8 ignores unreachable code, even though it would still be processed by JIT compilers. This behavior, also considered an improper branch-pruning logic issue, could possibly be used by local users for denial of service. kernel/bpf/verifier.c en el kernel de Linux hasta la versión 4.14.8 ignora el código inalcanzable, incluso aunque sea procesado por compiladores en tiempo de ejecución o JIT. Este comportamiento, que también se considera un problema de lógica de poda de ramas incorrecta, podría ser utilizado por usuarios locales para provocar una denegación de servicio (DoS). • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c131187db2d3fa2f8bf32fdf4e9a4ef805168467 http://www.securityfocus.com/bid/102325 http://www.securitytracker.com/id/1040057 https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-fix-branch-pruning-logic.patch?h=stretch-security https://github.com/torvalds/linux/commit/c131187db2d3fa2f8bf32fdf4e9a4ef805168467 https://usn.ubuntu.com/3619-1 https://usn.ubuntu.com/3619-2 https://usn.ubuntu.com/usn/ • CWE-20: Improper Input Validation •
CVSS: 3.3EPSS: 0%CPEs: 2EXPL: 0CVE-2017-17864
https://notcve.org/view.php?id=CVE-2017-17864
kernel/bpf/verifier.c in the Linux kernel through 4.14.8 mishandles states_equal comparisons between the pointer data type and the UNKNOWN_VALUE data type, which allows local users to obtain potentially sensitive address information, aka a "pointer leak." kernel/bpf/verifier.c en el kernel de Linux hasta la versión 4.14.8 gestiona de manera incorrecta las comparaciones states_equal entre el tipo de datos del puntero y el tipo de datos UNKNOWN_VALUE, lo que permite que usuarios locales obtengan información de direcciones sensible. Esto también se conoce como "pointer leak". • http://www.securityfocus.com/bid/102320 http://www.securitytracker.com/id/1040059 https://anonscm.debian.org/cgit/kernel/linux.git/commit/?h=stretch-security&id=ad775f6ff7eebb93eedc2f592bc974260e7757b0 https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-verifier-fix-states_equal-comparison-of-pointer-and-unknown.patch?h=stretch-security https://usn.ubuntu.com/usn/usn-3523-2 https://www.debian.org/security/2017/dsa-4073 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 7.2EPSS: 0%CPEs: 3EXPL: 0CVE-2017-17558 – kernel: Unallocated memory access by malicious USB device via bNumInterfaces overflow
https://notcve.org/view.php?id=CVE-2017-17558
The usb_destroy_configuration function in drivers/usb/core/config.c in the USB core subsystem in the Linux kernel through 4.14.5 does not consider the maximum number of configurations and interfaces before attempting to release resources, which allows local users to cause a denial of service (out-of-bounds write access) or possibly have unspecified other impact via a crafted USB device. La función usb_destroy_configuration en drivers/usb/core/config.c en el subsistema del núcleo USB en el kernel de Linux hasta la versión 4.14.5 no considera el máximo número de configuraciones e interfaces antes de intentar liberar recursos. Esto permite que usuarios locales provoquen una denegación de servicio (acceso de escritura fuera de límites) o, posiblemente, tengan otro tipo de impacto sin especificar mediante un dispositivo USB manipulado. The usb_destroy_configuration() function, in 'drivers/usb/core/config.c' in the USB core subsystem, in the Linux kernel through 4.14.5 does not consider the maximum number of configurations and interfaces before attempting to release resources. This allows local users to cause a denial of service, due to out-of-bounds write access, or possibly have unspecified other impact via a crafted USB device. • http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html http://openwall.com/lists/oss-security/2017/12/12/7 https://access.redhat.com/errata/RHSA-2018:0676 https://access.redhat.com/errata/RHSA-2018:1062 https://access.redhat.com/errata/RHSA-2019:1170 https://access.redhat.com/errata/RHSA-2019:1190 https://lists.debian.org/debian-lts-announce/2018/01/msg00004.html https://usn.ubuntu.com/3619-1 https://usn.ubuntu.com/3619-2 https://usn.ubuntu& • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •