CVE-2018-16846 – ceph: ListBucket max-keys has no defined limit in the RGW codebase
https://notcve.org/view.php?id=CVE-2018-16846
It was found in Ceph versions before 13.2.4 that authenticated ceph RGW users can cause a denial of service against OMAPs holding bucket indices. Se ha detectado en Ceph, en versiones anteriores a la 13.2.4, que los usuarios ceph RGW autenticados pueden provocar una denegación de servicio (DoS) contra los índices OMAP de depósito de retención. A flaw was found in the way the ListBucket function max-keys has no defined limit in the RGW codebase. An authenticated ceph RGW user can cause a denial of service attack against OMAPs holding bucked indices. • http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00100.html https://access.redhat.com/errata/RHSA-2019:2538 https://access.redhat.com/errata/RHSA-2019:2541 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16846 https://ceph.com/releases/13-2-4-mimic-released https://lists.debian.org/debian-lts-announce/2019/03/msg00002.html https://lists.debian.org/debian-lts-announce/2021/08/msg00013.html https://usn.ubuntu.com/4035-1 https://access.redhat.com/securi • CWE-770: Allocation of Resources Without Limits or Throttling •
CVE-2019-3811 – sssd: fallback_homedir returns '/' for empty home directories in passwd file
https://notcve.org/view.php?id=CVE-2019-3811
A vulnerability was found in sssd. If a user was configured with no home directory set, sssd would return '/' (the root directory) instead of '' (the empty string / no home directory). This could impact services that restrict the user's filesystem access to within their home directory through chroot() etc. All versions before 2.1 are vulnerable. Se ha encontrado una vulnerabilidad en sssd. • http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00026.html http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00045.html http://www.securityfocus.com/bid/106644 https://access.redhat.com/errata/RHSA-2019:2177 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3811 https://lists.debian.org/debian-lts-announce/2019/01/msg00011.html https://lists.debian.org/debian-lts-announce/2023/05/msg00028.html https://access.redhat.com/security/cve/CVE-2019-3811 htt • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-552: Files or Directories Accessible to External Parties •
CVE-2019-6133 – polkit: Temporary auth hijacking via PID reuse and non-atomic fork
https://notcve.org/view.php?id=CVE-2019-6133
In PolicyKit (aka polkit) 0.115, the "start time" protection mechanism can be bypassed because fork() is not atomic, and therefore authorization decisions are improperly cached. This is related to lack of uid checking in polkitbackend/polkitbackendinteractiveauthority.c. En PolicyKit (también conocido como polkit) 0.115, el mecanismo de protección "start time" puede omitirse debido a que fork() no es atómico y, por lo tanto, las decisiones de autorización se cachean incorrectamente. Esto está relacionado con la falta de comprobación de uid en polkitbackend/polkitbackendinteractiveauthority.c. A vulnerability was found in polkit. • http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00049.html http://www.securityfocus.com/bid/106537 https://access.redhat.com/errata/RHSA-2019:0230 https://access.redhat.com/errata/RHSA-2019:0420 https://access.redhat.com/errata/RHSA-2019:0832 https://access.redhat.com/errata/RHSA-2019:2699 https://access.redhat.com/errata/RHSA-2019:2978 https://bugs.chromium.org/p/project-zero/issues/detail?id=1692 https://git.kernel.org/linus/7b55851367136b1efd84d98fea81ba57a98304cf https • CWE-284: Improper Access Control CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVE-2018-20685 – openssh: scp client improper directory name validation
https://notcve.org/view.php?id=CVE-2018-20685
In OpenSSH 7.9, scp.c in the scp client allows remote SSH servers to bypass intended access restrictions via the filename of . or an empty filename. The impact is modifying the permissions of the target directory on the client side. En OpenSSH 7.9, scp.c en el cliente scp permite que los servidores SSH omitan las restricciones de acceso planeadas mediante un nombre de archivo "." o un nombre de archivo vacío. El impacto consiste en modificar los permisos del directorio objetivo en el lado del cliente. • http://www.securityfocus.com/bid/106531 https://access.redhat.com/errata/RHSA-2019:3702 https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/scp.c.diff?r1=1.197&r2=1.198&f=h https://github.com/openssh/openssh-portable/commit/6010c0303a422a9c5fa8860c061bf7105eb7f8b2 https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html https://security.gentoo.org/glsa/201903-16 https://security.gentoo.org/glsa/202007- • CWE-20: Improper Input Validation CWE-863: Incorrect Authorization •
CVE-2018-16866 – systemd: out-of-bounds read when parsing a crafted syslog message
https://notcve.org/view.php?id=CVE-2018-16866
An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon ':'. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable. Se ha descubierto una lectura fuera de límites en systemd-journald en la forma en la que analiza mensajes de registro que terminan con dos puntos ":". Un atacante local puede emplear este error para divulgar datos de la memoria del proceso. • http://packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Exploit.html http://seclists.org/fulldisclosure/2019/May/21 http://www.openwall.com/lists/oss-security/2019/05/10/4 http://www.securityfocus.com/bid/106527 https://access.redhat.com/errata/RHSA-2019:2091 https://access.redhat.com/errata/RHSA-2019:3222 https://access.redhat.com/errata/RHSA-2020:0593 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16866 https://seclists.org/bugtraq/2019/May/25 • CWE-125: Out-of-bounds Read CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •