CVSS: 10.0EPSS: 3%CPEs: 12EXPL: 0CVE-2016-7117 – kernel: Use-after-free in the recvmmsg exit path
https://notcve.org/view.php?id=CVE-2016-7117
Use-after-free vulnerability in the __sys_recvmmsg function in net/socket.c in the Linux kernel before 4.5.2 allows remote attackers to execute arbitrary code via vectors involving a recvmmsg system call that is mishandled during error processing. Vulnerabilidad de uso después de liberación de memoria en la función the __sys_recvmmsg en net/socket.c en el kernel de Linux en versiones anteriores a 4.5.2 permite a atacantes remotos ejecutar código arbitrario a través de vectores que involucran una llamada al sistema recvmmsg que no es manejada correctamente durante el procesamiento del error. A use-after-free vulnerability was found in the kernel's socket recvmmsg subsystem. This may allow remote attackers to corrupt memory and may allow execution of arbitrary code. This corruption takes place during the error handling routines within __sys_recvmmsg() function. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=34b88a68f26a75e4fded796f1a49c40f82234b7d http://rhn.redhat.com/errata/RHSA-2016-2962.html http://rhn.redhat.com/errata/RHSA-2017-0031.html http://rhn.redhat.com/errata/RHSA-2017-0036.html http://rhn.redhat.com/errata/RHSA-2017-0065.html http://rhn.redhat.com/errata/RHSA-2017-0086.html http://rhn.redhat.com/errata/RHSA-2017-0091.html http://rhn.redhat.com/errata/RHSA-2017-0113.html http://rhn. • CWE-19: Data Processing Errors CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 2CVE-2016-6828 – Linux Kernel - TCP Related Read Use-After-Free
https://notcve.org/view.php?id=CVE-2016-6828
The tcp_check_send_head function in include/net/tcp.h in the Linux kernel before 4.7.5 does not properly maintain certain SACK state after a failed data copy, which allows local users to cause a denial of service (tcp_xmit_retransmit_queue use-after-free and system crash) via a crafted SACK option. La función tcp_check_send_head en include/net/tcp.h en el kernel de Linux en versiones anteriores a 4.7.5 no mantiene adecuadamente cierto estado SACK tras una copia de datos fallida, lo que permite a usuarios locales provocar una denegación de servicio (uso después de liberación de memoria tcp_xmit_retransmit_queue y caída de sistema ) a través de una opción SACK manipulada. A use-after-free vulnerability was found in tcp_xmit_retransmit_queue and other tcp_* functions. This condition could allow an attacker to send an incorrect selective acknowledgment to existing connections, possibly resetting a connection. • https://www.exploit-db.com/exploits/40731 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bb1fceca22492109be12640d49f5ea5a544c6bb4 http://rhn.redhat.com/errata/RHSA-2017-0036.html http://rhn.redhat.com/errata/RHSA-2017-0086.html http://rhn.redhat.com/errata/RHSA-2017-0091.html http://rhn.redhat.com/errata/RHSA-2017-0113.html http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5 http://www.openwall.com/lists/oss-security/2016/08/15/ • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 1CVE-2016-6198 – kernel: vfs: missing detection of hardlinks in vfs_rename() on overlayfs
https://notcve.org/view.php?id=CVE-2016-6198
The filesystem layer in the Linux kernel before 4.5.5 proceeds with post-rename operations after an OverlayFS file is renamed to a self-hardlink, which allows local users to cause a denial of service (system crash) via a rename system call, related to fs/namei.c and fs/open.c. La capa del sistema de archivos en el kernel de Linux en versiones anteriores a 4.5.5 procede con operaciones de cambio de nombre después de que un archivo OverlayFS es cambiado de nombre a un self-hardlink, lo que permite a usuarios locales provocar una denegación de servicio (caída de sistema) a través de una llamada al sistema, relacionado con fs/namei.c y fs/open.c. A flaw was found that the vfs_rename() function did not detect hard links on overlayfs. A local, unprivileged user could use the rename syscall on overlayfs on top of xfs to crash the system. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d5ca871e72f2bb172ec9323497f01cd5091ec7 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca http://rhn.redhat.com/errata/RHSA-2016-1847.html http://rhn.redhat.com/errata/RHSA-2016-1875.html http://rhn.redhat.com/errata/RHSA-2016-2574.html http://rhn.redhat.com/errata/RHSA-2016-2584.html http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5 • CWE-284: Improper Access Control CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2016-6162
https://notcve.org/view.php?id=CVE-2016-6162
net/core/skbuff.c in the Linux kernel 4.7-rc6 allows local users to cause a denial of service (panic) or possibly have unspecified other impact via certain IPv6 socket operations. net/core/skbuff.c en el kernel de Linux 4.7-rc6 permite a usuarios locales provocar una denegación de servicio (pánico) o posiblemente tener otro impacto no especificado a través de ciertas operaciones socket IPv6. • http://www.openwall.com/lists/oss-security/2016/07/05/8 https://bugzilla.redhat.com/show_bug.cgi?id=1353538 • CWE-20: Improper Input Validation •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 1CVE-2016-6187 – Linux Kernel < 4.5.1 - Off-By-One (PoC)
https://notcve.org/view.php?id=CVE-2016-6187
The apparmor_setprocattr function in security/apparmor/lsm.c in the Linux kernel before 4.6.5 does not validate the buffer size, which allows local users to gain privileges by triggering an AppArmor setprocattr hook. La función apparmor_setprocattr en security/apparmor/lsm.c en el kernel de Linux en versiones anteriores a 4.6.5 no valida el tamaño de búfer, lo que permite a usuarios locales obtener privilegios desencadenando un gancho AppArmor setprocattr. • https://www.exploit-db.com/exploits/44301 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a46a4647fd1df9cf52e43bf467f0d9265096ca http://marc.info/?l=linux-kernel&m=146793642811929&w=2 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.5 http://www.openwall.com/lists/oss-security/2016/07/09/2 http://www.securityfocus.com/bid/91696 https://bugzilla.redhat.com/show_bug.cgi?id=1354383 https://github.com/torvalds/linux/commit/30a46a4647fd1df9cf5 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-264: Permissions, Privileges, and Access Controls •