CVSS: 7.8EPSS: 0%CPEs: 92EXPL: 1CVE-2018-13405 – Linux (Ubuntu) - Other Users coredumps Can Be Read via setgid Directory and killpriv Bypass
https://notcve.org/view.php?id=CVE-2018-13405
The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID. La función inode_init_owner en fs/inode.c en el kernel de Linux hasta la versión 3.16 permite a los usuarios locales crear archivos con una propiedad de grupo no deseada, en un escenario donde un directorio es SGID a un cierto grupo y es escribible por un usuario que no es miembro de ese grupo. • https://www.exploit-db.com/exploits/45033 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0fa3ecd87848c9c93c2c828ef4c3a8ca36ce46c7 http://openwall.com/lists/oss-security/2018/07/13/2 http://www.securityfocus.com/bid/106503 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://access.redhat.com/errata/RHSA-2019:0717 https://access.redhat.com/errata/RHSA- • CWE-269: Improper Privilege Management CWE-284: Improper Access Control •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 1CVE-2018-13099
https://notcve.org/view.php?id=CVE-2018-13099
An issue was discovered in fs/f2fs/inline.c in the Linux kernel through 4.4. A denial of service (out-of-bounds memory access and BUG) can occur for a modified f2fs filesystem image in which an inline inode contains an invalid reserved blkaddr. Se ha descubierto un problema en fs/f2fs/inline.c en el kernel de Linux hasta la versión 4.4 Puede ocurrir una denegación de servicio (lectura fuera de límites y BUG) para una imagen de sistema de archivos f2fs modificada en el que un inode insertado contiene un blkaddr reservado no válido • http://lists.opensuse.org/opensuse-security-announce/2018-10/msg00033.html http://packetstormsecurity.com/files/151420/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html http://www.securityfocus.com/bid/104680 https://bugzilla.kernel.org/show_bug.cgi?id=200179 https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=3bfe2049c222b23342ff2a216cd5a869e8a14897 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4dbe38dc386910c668c75ae616b99b823b59f3eb https:// • CWE-125: Out-of-bounds Read •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2018-13095 – kernel: NULL pointer dereference in fs/xfs/libxfs/xfs_inode_buf.c
https://notcve.org/view.php?id=CVE-2018-13095
An issue was discovered in fs/xfs/libxfs/xfs_inode_buf.c in the Linux kernel through 4.17.3. A denial of service (memory corruption and BUG) can occur for a corrupted xfs image upon encountering an inode that is in extent format, but has more extents than fit in the inode fork. Se ha descubierto un problema en fs/xfs/libxfs/xfs_inode_buf.c en el kernel de Linux hasta la versión 4.17.3. Puede ocurrir una denegación de servicio (corrupción de memoria y BUG) para una imagen xfs corrupta después de encontrarse con un inode con formato extendido, pero tiene más extensiones que cabrían en el fork inode. An issue was discovered in the XFS filesystem in fs/xfs/libxfs/xfs_inode_buf.c in the Linux kernel. • https://access.redhat.com/errata/RHSA-2019:1350 https://access.redhat.com/errata/RHSA-2019:2029 https://access.redhat.com/errata/RHSA-2019:2043 https://bugzilla.kernel.org/show_bug.cgi?id=199915 https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git/commit/?h=for-next&id=23fcb3340d033d9f081e21e6c12c2db7eaa541d3 https://github.com/torvalds/linux/commit/23fcb3340d033d9f081e21e6c12c2db7eaa541d3 https://access.redhat.com/security/cve/CVE-2018-13095 https://bugzilla.redhat.com/show_bug.cgi?id=1597775 • CWE-476: NULL Pointer Dereference CWE-787: Out-of-bounds Write •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2018-13100
https://notcve.org/view.php?id=CVE-2018-13100
An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.17.3, which does not properly validate secs_per_zone in a corrupted f2fs image, as demonstrated by a divide-by-zero error. Se ha descubierto un problema en fs/f2fs/super.c en el kernel de Linux hasta la versión 4.17.3, que no valida correctamente secs_per_zone en una imagen f2f corrupta, tal y como queda demostrado con un error de división entre cero. • http://lists.opensuse.org/opensuse-security-announce/2018-10/msg00033.html http://packetstormsecurity.com/files/151420/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html http://www.securityfocus.com/bid/104679 https://bugzilla.kernel.org/show_bug.cgi?id=200183 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=42bf546c1fe3f3654bdf914e977acbc2b80a5be5 https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html https://seclists.org/bugtraq/2019/Jan/52 https • CWE-369: Divide By Zero •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2018-13096
https://notcve.org/view.php?id=CVE-2018-13096
An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.14. A denial of service (out-of-bounds memory access and BUG) can occur upon encountering an abnormal bitmap size when mounting a crafted f2fs image. Se ha descubierto un problema en fs/f2fs/super.c en el kernel de Linux hasta la versión 4.14. Puede ocurrir una denegación de servicio (acceso a memoria fuera de límites y BUG) cuando se encuentra un tamaño de mapa de bits anormal cuando se monta una imagen f2fs manipulada • http://lists.opensuse.org/opensuse-security-announce/2018-10/msg00033.html http://packetstormsecurity.com/files/151420/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html https://bugzilla.kernel.org/show_bug.cgi?id=200167 https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=e34438c903b653daca2b2a7de95aed46226f8ed3 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e34438c903b653daca2b2a7de95aed46226f8ed3 https://lists.debian.org/debian-lts-announce/2019/03 • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •