CVE-2018-1128 – ceph: cephx protocol is vulnerable to replay attack
https://notcve.org/view.php?id=CVE-2018-1128
It was found that cephx authentication protocol did not verify ceph clients correctly and was vulnerable to replay attack. Any attacker having access to ceph cluster network who is able to sniff packets on network can use this vulnerability to authenticate with ceph service and perform actions allowed by ceph service. Ceph branches master, mimic, luminous and jewel are believed to be vulnerable. Se ha descubierto que el protocolo de autenticación cephx no verificaba correctamente los clientes ceph y era vulnerable a ataques de reproducción. Cualquier atacante que tenga acceso a la red de clústers de ceph y que pueda rastrear paquetes en la red puede emplear esta vulnerabilidad para autenticarse con el servicio ceph y realizar acciones permitidas por el servicio ceph. • http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00100.html http://tracker.ceph.com/issues/24836 http://www.openwall.com/lists/oss-security/2020/11/17/3 http://www.openwall.com/lists/oss-security/2020/11/17/4 https://access.redhat.com/errata/RHSA-2018:2177 https://access.redhat.com/errata/RHSA-2018:2179 https://access.redhat.com/errata/RHSA-2018:2261 https://access.redhat.com/errata/RHSA-2018:2274 https://bugzilla.redhat.com/show_bug.cgi?id=1575866& • CWE-287: Improper Authentication CWE-294: Authentication Bypass by Capture-replay •
CVE-2018-13785 – libpng: Integer overflow and resultant divide-by-zero in pngrutil.c:png_check_chunk_length() allows for denial of service
https://notcve.org/view.php?id=CVE-2018-13785
In libpng 1.6.34, a wrong calculation of row_factor in the png_check_chunk_length function (pngrutil.c) may trigger an integer overflow and resultant divide-by-zero while processing a crafted PNG file, leading to a denial of service. En libpng 1.6.34, un cálculo erróneo de row_factor en la función png_check_chunk_length (pngrutil.c) podría desencadenar un desbordamiento de enteros y una división entre cero resultante al procesar un archivo PNG manipulado, lo que conduciría a una denegación de servicio (DoS). • http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html http://www.securityfocus.com/bid/105599 http://www.securitytracker.com/id/1041889 https://access.redhat.com/errata/RHSA-2018:3000 https://access.redhat.com/errata/RHSA-2018:3001 https://access.redhat.com/errata/RHSA-2018:3002 https://access.redhat.com/errata/RHSA-2018:3003 https://access.redhat.com/errata/RHSA-2018:3007 https://access.redhat.com/errata/RHSA-2018:3008 https://access.redhat.com/errata/ • CWE-190: Integer Overflow or Wraparound CWE-369: Divide By Zero •
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 •