CVE-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 •
CVE-2018-12910 – libsoup: Crash in soup_cookie_jar.c:get_cookies() on empty hostnames
https://notcve.org/view.php?id=CVE-2018-12910
The get_cookies function in soup-cookie-jar.c in libsoup 2.63.2 allows attackers to have unspecified impact via an empty hostname. La función get_cookies en soup-cookie-jar.c en libsoup 2.63.2 permite que los atacantes provoquen un impacto no especificado mediante un nombre de host vacío. An out-of-bounds read has been discovered in libsoup when getting cookies from a URI with empty hostname. An attacker may use this flaw to cause a crash in the application. • http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00003.html https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2018:3140 https://access.redhat.com/errata/RHSA-2018:3505 https://gitlab.gnome.org/GNOME/gnome-sdk-images/commit/4215b8a21b3b3055e947312a8920df94f93ba047 https://gitlab.gnome.org/GNOME/libsoup/commit/db2b0d5809d5f8226d47312b40992cadbcde439f https://gitlab.gnome.org/GNOME/libsoup/issues/3 https://lists.debian.org/debian-lts-announce/2018/07/msg00007. • CWE-125: Out-of-bounds Read •
CVE-2018-1113 – setup: nologin listed in /etc/shells violates security expectations
https://notcve.org/view.php?id=CVE-2018-1113
setup before version 2.11.4-1.fc28 in Fedora and Red Hat Enterprise Linux added /sbin/nologin and /usr/sbin/nologin to /etc/shells. This violates security assumptions made by pam_shells and some daemons which allow access based on a user's shell being listed in /etc/shells. Under some circumstances, users which had their shell changed to /sbin/nologin could still access the system. setup en versiones anteriores a la 2.11.4-1.fc28 en Fedora y Red Hat Enterprise Linux añadía /sbin/nologin y /usr/sbin/nologin a /etc/shells. Esto viola las asunciones de seguridad realizadas por pam_shells y algunos demonios, lo que permite el acceso en base a que el shell de un usuario se lista en /etc/shells. En algunas circunstancias, los usuarios a los que se les haya cambiado el shell a /sbin/nologin podrían seguir siendo capaces de acceder al sistema. • https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2018:3249 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1113 https://access.redhat.com/security/cve/CVE-2018-1113 https://bugzilla.redhat.com/show_bug.cgi?id=1571094 • CWE-285: Improper Authorization CWE-732: Incorrect Permission Assignment for Critical Resource •
CVE-2018-13033 – binutils: Uncontrolled Resource Consumption in execution of nm
https://notcve.org/view.php?id=CVE-2018-13033
The Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.30, allows remote attackers to cause a denial of service (excessive memory allocation and application crash) via a crafted ELF file, as demonstrated by _bfd_elf_parse_attributes in elf-attrs.c and bfd_malloc in libbfd.c. This can occur during execution of nm. La biblioteca Binary File Descriptor (BFD), conocida como libbfd, tal y como se distribuye en GNU Binutils 2.30 y anteriores permite que atacantes remotos provoquen una denegación de servicio (asignación excesiva de memoria y cierre inesperado de la aplicación) mediante un archivo ELF manipulado. Esto queda demostrado por _bfd_elf_parse_attributes en elf-attrs.c y bfd_malloc en libbfd.c. Esto puede ocurrir durante la ejecución de nm. • http://www.securityfocus.com/bid/104584 https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2018:3032 https://security.gentoo.org/glsa/201908-01 https://sourceware.org/bugzilla/show_bug.cgi?id=23361 https://usn.ubuntu.com/4336-1 https://access.redhat.com/security/cve/CVE-2018-13033 https://bugzilla.redhat.com/show_bug.cgi?id=1597436 • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •
CVE-2018-5188 – Mozilla: Memory safety bugs fixed in Firefox 61, Firefox ESR 60.1, and Firefox ESR 52.9
https://notcve.org/view.php?id=CVE-2018-5188
Memory safety bugs present in Firefox 60, Firefox ESR 60, and Firefox ESR 52.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61. Hay errores de seguridad de memoria en Firefox 60, Firefox ESR 60 y Firefox ESR 52.8. Algunos de estos errores mostraron evidencias de corrupción de memoria y se entiende que, con el suficiente esfuerzo, algunos de estos podrían explotarse para ejecutar código arbitrario. • http://www.securityfocus.com/bid/104555 https://access.redhat.com/errata/RHSA-2018:2112 https://access.redhat.com/errata/RHSA-2018:2113 https://access.redhat.com/errata/RHSA-2018:2251 https://access.redhat.com/errata/RHSA-2018:2252 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1456189%2C1456975%2C1465898%2C1392739%2C1451297%2C1464063%2C1437842%2C1442722%2C1452576%2C1450688%2C1458264%2C1458270%2C1465108%2C1464829%2C1464079%2C1463494%2C1458048 https://lists.debian.org/debian-lts-announce/2018/06/msg00014.html http • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •