CVSS: 6.2EPSS: 0%CPEs: 1EXPL: 0CVE-2016-2543
https://notcve.org/view.php?id=CVE-2016-2543
The snd_seq_ioctl_remove_events function in sound/core/seq/seq_clientmgr.c in the Linux kernel before 4.4.1 does not verify FIFO assignment before proceeding with FIFO clearing, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted ioctl call. La función snd_seq_ioctl_remove_events en sound/core/seq/seq_clientmgr.c en el kernel de Linux en versiones anteriores a 4.4.1 no verifica la asignación FIFO antes de proceder con la limpieza FIFO, lo que permite a usuarios locales causar una denegación de servicio (referencia a puntero NULL y OOPS) a través de una llamada ioctl manipulada. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=030e2c78d3a91dd0d27fef37e91950dde333eba1 http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html http://www.debian.org/security/2016/dsa-3503 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1 http://www.openwall.com/lists/oss-security/2016/ •
CVSS: 6.2EPSS: 0%CPEs: 1EXPL: 0CVE-2016-2549
https://notcve.org/view.php?id=CVE-2016-2549
sound/core/hrtimer.c in the Linux kernel before 4.4.1 does not prevent recursive callback access, which allows local users to cause a denial of service (deadlock) via a crafted ioctl call. sound/core/hrtimer.c en el kernel de Linux en versiones anteriores a 4.4.1 no previene el acceso a la devolución de llamadas recursivas, lo que permite a usuarios locales causar una denegación de servicio (punto muerto) a través de una llamada ioctl manipulada. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2ba1fe7a06d3624f9a7586d672b55f08f7c670f3 http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html http://www.debian.org/security/2016/dsa-3503 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1 http://www.openwall.com/lists/oss-security/2016/ • CWE-20: Improper Input Validation •
CVSS: 7.4EPSS: 0%CPEs: 3EXPL: 0CVE-2016-2069 – kernel: race condition in the TLB flush logic
https://notcve.org/view.php?id=CVE-2016-2069
Race condition in arch/x86/mm/tlb.c in the Linux kernel before 4.4.1 allows local users to gain privileges by triggering access to a paging structure by a different CPU. Condición de carrera en arch/x86/mm/tlb.c en el kernel de Linux en versiones anteriores a 4.4.1 permite a usuarios locales obtener privilegios desencadenando el acceso a una estructura de paginación por un CPU diferente. A flaw was discovered in the way the Linux kernel dealt with paging structures. When the kernel invalidated a paging structure that was not in use locally, it could, in principle, race against another CPU that is switching to a process that uses the paging structure in question. A local user could use a thread running with a stale cached virtual->physical translation to potentially escalate their privileges if the translation in question were writable and the physical page got reused for something critical (for example, a page table). • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=71b3c126e61177eb693423f2e18a1914205b165e http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html http://rhn.redhat.com/errata/RHSA-2016-2574.html http://rhn.redhat.com/errata/RHSA-2016-258 • CWE-266: Incorrect Privilege Assignment CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 2CVE-2016-1575 – Ubuntu 14.04/15.10 - User Namespace Overlayfs Xattr SetGID Privilege Escalation
https://notcve.org/view.php?id=CVE-2016-1575
The overlayfs implementation in the Linux kernel through 4.5.2 does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid directory. La implementación de overlayfs en el kernel de Linux hasta la versión 4.5.2 no mantiene correctamente datos POSIX ACL xattr, lo que permite a usuarios locales obtener privilegos aprovechando un directorio con permiso de escritura de grupo setgid. • https://www.exploit-db.com/exploits/41762 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9f57ebcba563e0cd532926cab83c92bb4d79360 http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-1575.html http://www.halfdog.net/Security/2016/UserNamespaceOverlayfsXattrSetgidPrivilegeEscalation http://www.openwall.com/lists/oss-security/2016/02/24/7 http://www.openwall.com/lists/oss-security/2021/10/18/1 https://launchpad.net/bugs/1534961 • CWE-269: Improper Privilege Management •
CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 2CVE-2016-1576 – Ubuntu 15.10 - 'USERNS ' Overlayfs Over Fuse Privilege Escalation
https://notcve.org/view.php?id=CVE-2016-1576
The overlayfs implementation in the Linux kernel through 4.5.2 does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an overlayfs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program. La implementación de overlayfs en el kernel de Linux hasta la versión 4.5.2 no restringe correctamente el espacio de nombres de montaje, lo que permite a usuarios locales obtener privilegos montando un sistema de archivos overlayfs sobre un sistema de archivos FUSE y luego ejecutando un programa setuid manipulado. • https://www.exploit-db.com/exploits/41763 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9f57ebcba563e0cd532926cab83c92bb4d79360 http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-1576.html http://www.halfdog.net/Security/2016/OverlayfsOverFusePrivilegeEscalation http://www.openwall.com/lists/oss-security/2016/02/24/8 http://www.openwall.com/lists/oss-security/2021/10/18/1 https://bugs.launchpad.net/bugs/1535150 https://launchpadlibrarian.net/23530009 •