CVE-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 •
CVE-2018-16885 – kernel: out-of-bound read in memcpy_fromiovecend()
https://notcve.org/view.php?id=CVE-2018-16885
A flaw was found in the Linux kernel that allows the userspace to call memcpy_fromiovecend() and similar functions with a zero offset and buffer length which causes the read beyond the buffer boundaries, in certain cases causing a memory access fault and a system halt by accessing invalid memory address. This issue only affects kernel version 3.10.x as shipped with Red Hat Enterprise Linux 7. Se ha detectado un fallo en el kernel de Linux que permite al espacio de usuario llamar a memcpy_fromiovecend() y funciones similares con un offset de 0 y un tamaño de búfer que causa la lectura fuera de los límites de dicho búfer. En algunos casos, esto provoca un fallo de acceso a la memoria y la detención del sistema, accediendo a direcciones de memoria inválidas. Este problema solo afecta a las versiones 3.10.x del kernel, incluidas por defecto en Red Hat Enterprise Linux 7. • http://www.securityfocus.com/bid/106296 https://access.redhat.com/errata/RHSA-2019:2029 https://access.redhat.com/errata/RHSA-2019:2043 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16885 https://access.redhat.com/security/cve/CVE-2018-16885 https://bugzilla.redhat.com/show_bug.cgi?id=1661503 • CWE-125: Out-of-bounds Read •
CVE-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 •
CVE-2018-14718 – jackson-databind: arbitrary code execution in slf4j-ext class
https://notcve.org/view.php?id=CVE-2018-14718
FasterXML jackson-databind 2.x before 2.9.7 might allow remote attackers to execute arbitrary code by leveraging failure to block the slf4j-ext class from polymorphic deserialization. Las versiones 2.x de FasterXML jackson-databind anteriores a la 2.9.7 podrían permitir a los atacantes remotos ejecutar código arbitrario aprovechando un fallo para bloquear la clase slf4j-ext de deserialización polimórfica. A flaw was discovered in jackson-databind, where it would permit polymorphic deserialization of a malicious object using slf4j classes. An attacker could use this flaw to execute arbitrary code. • http://www.securityfocus.com/bid/106601 https://access.redhat.com/errata/RHBA-2019:0959 https://access.redhat.com/errata/RHSA-2019:0782 https://access.redhat.com/errata/RHSA-2019:0877 https://access.redhat.com/errata/RHSA-2019:1782 https://access.redhat.com/errata/RHSA-2019:1797 https://access.redhat.com/errata/RHSA-2019:1822 https://access.redhat.com/errata/RHSA-2019:1823 https://access.redhat.com/errata/RHSA-2019:2804 https://access.redhat.com/errata/RHSA-2019:2858& • CWE-502: Deserialization of Untrusted Data •
CVE-2018-14719 – jackson-databind: arbitrary code execution in blaze-ds-opt and blaze-ds-core classes
https://notcve.org/view.php?id=CVE-2018-14719
FasterXML jackson-databind 2.x before 2.9.7 might allow remote attackers to execute arbitrary code by leveraging failure to block the blaze-ds-opt and blaze-ds-core classes from polymorphic deserialization. Las versiones 2.x de FasterXML jackson-databind anteriores a la 2.9.7 podrían permitir a los atacantes remotos ejecutar código arbitrario aprovechando un fallo para bloquear las clases blaze-ds-opt y blaze-ds-core de deserialización polimórfica. A flaw was discovered in jackson-databind, where it would permit polymorphic deserialization of a malicious object using blaze classes. An attacker could use this flaw to execute arbitrary code. • https://access.redhat.com/errata/RHBA-2019:0959 https://access.redhat.com/errata/RHSA-2019:0782 https://access.redhat.com/errata/RHSA-2019:0877 https://access.redhat.com/errata/RHSA-2019:1782 https://access.redhat.com/errata/RHSA-2019:1797 https://access.redhat.com/errata/RHSA-2019:1822 https://access.redhat.com/errata/RHSA-2019:1823 https://access.redhat.com/errata/RHSA-2019:2804 https://access.redhat.com/errata/RHSA-2019:2858 https://access.redhat.com/errata/RHSA • CWE-502: Deserialization of Untrusted Data •