CVSS: 7.3EPSS: 0%CPEs: 17EXPL: 0CVE-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') •
CVSS: 7.8EPSS: 0%CPEs: 23EXPL: 1CVE-2018-16864 – systemd: stack overflow when calling syslog from a command with long cmdline
https://notcve.org/view.php?id=CVE-2018-16864
An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when a program with long command line arguments calls syslog. A local attacker may use this flaw to crash systemd-journald or escalate his privileges. Versions through v240 are vulnerable. Se ha descubierto una asignación de memoria sin límites, que podría resultar en que la pila choque con otra región de memoria, en systemd-journald, cuando un programa con argumentos largos de la línea de comandos llama a syslog. Un atacante local podría emplear este error para provocar el cierre inesperado de systemd-journald o escalar sus privilegios. • http://www.openwall.com/lists/oss-security/2021/07/20/2 http://www.securityfocus.com/bid/106523 https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2019:0049 https://access.redhat.com/errata/RHSA-2019:0204 https://access.redhat.com/errata/RHSA-2019:0271 https://access.redhat.com/errata/RHSA-2019:0342 https://access.redhat.com/errata/RHSA-2019:0361 https://access.redhat.com/errata/RHSA-2019:2402 https://bugzilla.redhat.com/show_ • CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 7.8EPSS: 0%CPEs: 20EXPL: 1CVE-2018-16865 – systemd: stack overflow when receiving many journald entries
https://notcve.org/view.php?id=CVE-2018-16865
An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when many entries are sent to the journal socket. A local attacker, or a remote one if systemd-journal-remote is used, may use this flaw to crash systemd-journald or execute code with journald privileges. Versions through v240 are vulnerable. Se ha descubierto una asignación de memoria sin límites que podría resultar en que la pila choque con otra región de memoria, en systemd-journald, cuando se envían muchas entradas al socket de journal. Un atacante local, o uno remoto si se emplea systemd-journal-remote, podría emplear este error para provocar el cierre inesperado de systemd-journald o ejecutar código con privilegios de journald. • 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.openwall.com/lists/oss-security/2021/07/20/2 http://www.securityfocus.com/bid/106525 https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2019:0049 https://access.redhat.com/errata/RHSA-2019:0204 https://access.redhat.com/errata/RHSA-2019 • CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 6.5EPSS: 1%CPEs: 24EXPL: 0CVE-2018-20662 – poppler: SIGABRT PDFDoc::setup class in PDFDoc.cc
https://notcve.org/view.php?id=CVE-2018-20662
In Poppler 0.72.0, PDFDoc::setup in PDFDoc.cc allows attackers to cause a denial-of-service (application crash caused by Object.h SIGABRT, because of a wrong return value from PDFDoc::setup) by crafting a PDF file in which an xref data structure is mishandled during extractPDFSubtype processing. En la versión 0.72.0 de Poppler, PDFDoc::setup en PDFDoc.cc permite a los atacantes remotos provocar una denegación de servicio (cierre inesperado de la aplicación provocado por un SIGABRT en Object.h debido a un valor de retorno incorrecto de PDFDoc::setup) manipulando un archivo PDF en el que la estructura de datos xref se maneja de manera incorrecta durante el procesamiento de extractPDFSubtype. • https://access.redhat.com/errata/RHSA-2019:2022 https://access.redhat.com/errata/RHSA-2019:2713 https://gitlab.freedesktop.org/poppler/poppler/commit/9fd5ec0e6e5f763b190f2a55ceb5427cfe851d5f https://gitlab.freedesktop.org/poppler/poppler/issues/706 https://lists.debian.org/debian-lts-announce/2019/03/msg00008.html https://lists.debian.org/debian-lts-announce/2020/11/msg00014.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6OSCOYM3AMFFBJWSBWY6VJVLNE5JD7YS https://li • CWE-20: Improper Input Validation CWE-617: Reachable Assertion •
CVSS: 6.5EPSS: 0%CPEs: 22EXPL: 0CVE-2018-20650 – poppler: reachable Object::dictLookup assertion in FileSpec class in FileSpec.cc
https://notcve.org/view.php?id=CVE-2018-20650
A reachable Object::dictLookup assertion in Poppler 0.72.0 allows attackers to cause a denial of service due to the lack of a check for the dict data type, as demonstrated by use of the FileSpec class (in FileSpec.cc) in pdfdetach. Una aserción alcanzable en Object::dictLookup en Poppler 0.72.0 permite a los atacantes provocar una denegación de servicio (DoS) debido a la falta de comprobación del tipo de datos del directorio, tal y como queda demostrado con el uso de la clase FileSpec (en FileSpec.cc) en pdfdetach. • http://www.securityfocus.com/bid/106459 https://access.redhat.com/errata/RHSA-2019:2022 https://access.redhat.com/errata/RHSA-2019:2713 https://gitlab.freedesktop.org/poppler/poppler/commit/de0c0b8324e776f0b851485e0fc9622fc35695b7 https://gitlab.freedesktop.org/poppler/poppler/issues/704 https://lists.debian.org/debian-lts-announce/2019/09/msg00033.html https://lists.debian.org/debian-lts-announce/2020/11/msg00014.html https://lists.debian.org/debian-lts-announce/2022/09/msg00030.html https:/ • CWE-20: Improper Input Validation CWE-617: Reachable Assertion •