CVE-2017-17450
https://notcve.org/view.php?id=CVE-2017-17450
net/netfilter/xt_osf.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for add_callback and remove_callback operations, which allows local users to bypass intended access restrictions because the xt_osf_fingers data structure is shared across all net namespaces. net/netfilter/xt_osf.c en el kernel de Linux hasta la versión 4.14.4 no requiere la capacidad CAP_NET_ADMIN para operaciones "add_callback" y "remove_callback", lo que permite que usuarios locales omitan las restricciones de acceso establecidas debido a que la estructura de datos xt_osf_fingers se comparte entre todos los espacios de nombres de la red. • http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html http://www.securityfocus.com/bid/102110 https://lkml.org/lkml/2017/12/5/982 https://usn.ubuntu.com/3583-1 https://usn.ubuntu.com/3583-2 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/3632-1 https://www.debian.org/security/2017/dsa-4073 • CWE-862: Missing Authorization •
CVE-2017-18204
https://notcve.org/view.php?id=CVE-2017-18204
The ocfs2_setattr function in fs/ocfs2/file.c in the Linux kernel before 4.14.2 allows local users to cause a denial of service (deadlock) via DIO requests. La función ocfs2_setattr en fs/ocfs2/file.c en el kernel de Linux, en versiones anteriores a la 4.14.2, permite que usuarios locales provoquen una denegación de servicio (deadlock) mediante peticiones DIO. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=28f5a8a7c033cbf3e32277f4cc9c6afd74f05300 http://www.securityfocus.com/bid/103183 https://github.com/torvalds/linux/commit/28f5a8a7c033cbf3e32277f4cc9c6afd74f05300 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/3655-1 https://usn.ubuntu.com/3655-2 https://www.kernel.org/pu •
CVE-2017-17448 – kernel: Missing capabilities check in net/netfilter/nfnetlink_cthelper.c allows for unprivileged access to systemwide nfnl_cthelper_list structure
https://notcve.org/view.php?id=CVE-2017-17448
net/netfilter/nfnetlink_cthelper.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for new, get, and del operations, which allows local users to bypass intended access restrictions because the nfnl_cthelper_list data structure is shared across all net namespaces. net/netfilter/nfnetlink_cthelper.c en el kernel de Linux hasta la versión 4.14.4 no requiere la capacidad CAP_NET_ADMIN para operaciones "new", "get" y "del", lo que permite que usuarios locales omitan las restricciones de acceso establecidas debido a que la estructura de datos nfnl_cthelper_list se comparte entre todos los espacios de nombres de la red. The net/netfilter/nfnetlink_cthelper.c function in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for new, get, and del operations. This allows local users to bypass intended access restrictions because the nfnl_cthelper_list data structure is shared across all net namespaces. • http://www.securityfocus.com/bid/102117 https://access.redhat.com/errata/RHSA-2018:0654 https://access.redhat.com/errata/RHSA-2018:0676 https://access.redhat.com/errata/RHSA-2018:1062 https://patchwork.kernel.org/patch/10089373 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: • CWE-284: Improper Access Control CWE-862: Missing Authorization •
CVE-2017-16994 – Linux Kernel - 'mincore()' Uninitialized Kernel Heap Page Disclosure
https://notcve.org/view.php?id=CVE-2017-16994
The walk_hugetlb_range function in mm/pagewalk.c in the Linux kernel before 4.14.2 mishandles holes in hugetlb ranges, which allows local users to obtain sensitive information from uninitialized kernel memory via crafted use of the mincore() system call. La función walk_hugetlb_range en mm/pagewalk.c en el kernel de Linux en versiones anteriores a la 4.14.2 gestiona de manera incorrecta los agujeros en los rangos hugetlb, lo que permite que usuarios locales obtengan información sensible de la memoria del kernel no inicializada mediante el uso manipulado de la llamada del sistema mincore(). The walk_hugetlb_range() function in 'mm/pagewalk.c' file in the Linux kernel from v4.0-rc1 through v4.15-rc1 mishandles holes in hugetlb ranges. This allows local users to obtain sensitive information from uninitialized kernel memory via crafted use of the mincore() system call. • https://www.exploit-db.com/exploits/43178 https://www.exploit-db.com/exploits/44304 https://www.exploit-db.com/exploits/44303 https://github.com/jedai47/CVE-2017-16994 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=373c4557d2aa362702c4c2d41288fb1e54990b7c http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.2 http://www.securityfocus.com/bid/101969 https://access.redhat.com/errata/RHSA-2018:0502 https://bugs.chromium.org/p/project-zero/i • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVE-2017-15129 – kernel: net: double-free and memory corruption in get_net_ns_by_id()
https://notcve.org/view.php?id=CVE-2017-15129
A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11. The function get_net_ns_by_id() in net/core/net_namespace.c does not check for the net::count value after it has found a peer network in netns_ids idr, which could lead to double free and memory corruption. This vulnerability could allow an unprivileged local user to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is thought to be unlikely. Se ha descubierto una vulnerabilidad en los nombres de espacio de red que afecta al kernel de Linux en versiones anteriores a la 4.14.11. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=21b5944350052d2583e82dd59b19a9ba94a007f0 http://seclists.org/oss-sec/2018/q1/7 http://www.securityfocus.com/bid/102485 https://access.redhat.com/errata/RHSA-2018:0654 https://access.redhat.com/errata/RHSA-2018:0676 https://access.redhat.com/errata/RHSA-2018:1062 https://access.redhat.com/errata/RHSA-2019:1946 https://access.redhat.com/security/cve/CVE-2017-15129 https://bugzilla.redhat.com/show_bug.cgi& • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •