CVSS: 8.8EPSS: 0%CPEs: 18EXPL: 0CVE-2018-7550 – QEMU: i386: multiboot OOB access while loading kernel image
https://notcve.org/view.php?id=CVE-2018-7550
The load_multiboot function in hw/i386/multiboot.c in Quick Emulator (aka QEMU) allows local guest OS users to execute arbitrary code on the QEMU host via a mh_load_end_addr value greater than mh_bss_end_addr, which triggers an out-of-bounds read or write memory access. La función load_multiboot en hw/i386/multiboot.c en Quick Emulator (también conocido como QEMU) permite que usuarios locales invitados del sistema operativo ejecuten código arbitrario en el host QEMU mediante un valor mh_load_end_addr mayor que mh_bss_end_addr. Esto desencadena un acceso de lectura o escritura a la memoria fuera de límites. Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur while loading a kernel image during the guest boot, if mh_load_end_addr address is greater than the mh_bss_end_addr address. • http://www.securityfocus.com/bid/103181 https://access.redhat.com/errata/RHSA-2018:1369 https://access.redhat.com/errata/RHSA-2018:2462 https://bugzilla.redhat.com/show_bug.cgi?id=1549798 https://github.com/orangecertcc/security-research/security/advisories/GHSA-f49v-45qp-cv53 https://lists.debian.org/debian-lts-announce/2018/04/msg00015.html https://lists.debian.org/debian-lts-announce/2018/04/msg00016.html https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html https:&#x • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •
CVSS: 6.5EPSS: 0%CPEs: 51EXPL: 1CVE-2018-1304 – tomcat: Incorrect handling of empty string URL in security constraints can lead to unintended exposure of resources
https://notcve.org/view.php?id=CVE-2018-1304
The URL pattern of "" (the empty string) which exactly maps to the context root was not correctly handled in Apache Tomcat 9.0.0.M1 to 9.0.4, 8.5.0 to 8.5.27, 8.0.0.RC1 to 8.0.49 and 7.0.0 to 7.0.84 when used as part of a security constraint definition. This caused the constraint to be ignored. It was, therefore, possible for unauthorised users to gain access to web application resources that should have been protected. Only security constraints with a URL pattern of the empty string were affected. El patrón de URL "" (la cadena vacía) que mapea exactamente al root de contexto no se gestionó correctamente en Apache Tomcat 9.0.0.M1 a 9.0.4, 8.5.0 a 8.5.27, 8.0.0.RC1 a 8.0.49 y 7.0.0 a 7.0.84 al emplearse como parte de una definición de limitación de seguridad. • https://github.com/knqyf263/CVE-2018-1304 http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html http://www.securityfocus.com/bid/103170 http://www.securitytracker.com/id/1040427 https://access.redhat.com/errata/RHSA-2018:0465 https://access.redhat.com/errata/RHSA-2018:0466 https://access.redhat.com/errata/RHSA-2018:1320 https://access.redhat.com/errata/RHSA-2018:1447 https://access.redha • CWE-284: Improper Access Control •
CVSS: 9.8EPSS: 0%CPEs: 4EXPL: 0CVE-2017-18206 – zsh: buffer overrun in symlinks
https://notcve.org/view.php?id=CVE-2017-18206
In utils.c in zsh before 5.4, symlink expansion had a buffer overflow. En utils.c en zsh, en versiones anteriores a la 5.4, la expansión symlink tiene un desbordamiento de búfer. A buffer overflow flaw was found in the zsh shell symbolic link resolver. A local, unprivileged user can create a specially crafted directory path which leads to a buffer overflow in the context of the user trying to do a symbolic link resolution in the aforementioned path. If the user affected is privileged, this leads to privilege escalation. • https://access.redhat.com/errata/RHSA-2018:1932 https://access.redhat.com/errata/RHSA-2018:3073 https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html https://security.gentoo.org/glsa/201805-10 https://sourceforge.net/p/zsh/code/ci/c7a9cf465dd620ef48d586026944d9bd7a0d5d6d https://usn.ubuntu.com/3593-1 https://access.redhat.com/security/cve/CVE-2017-18206 https://bugzilla.redhat.com/show_bug.cgi?id=1549861 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-121: Stack-based Buffer Overflow •
CVSS: 9.8EPSS: 0%CPEs: 4EXPL: 0CVE-2016-10714
https://notcve.org/view.php?id=CVE-2016-10714
In zsh before 5.3, an off-by-one error resulted in undersized buffers that were intended to support PATH_MAX characters. En zsh, en versiones anteriores a la 5.3, un error por un paso resulta en búfers de tamaño menor al esperado que debían soportar caracteres PATH_MAX. • https://sourceforge.net/p/zsh/code/ci/a62e1640bcafbb82d86ea8d8ce057a83c4683d60 https://usn.ubuntu.com/3593-1 • CWE-189: Numeric Errors •
CVSS: 7.5EPSS: 0%CPEs: 7EXPL: 0CVE-2018-7549 – zsh: crash on copying empty hash table
https://notcve.org/view.php?id=CVE-2018-7549
In params.c in zsh through 5.4.2, there is a crash during a copy of an empty hash table, as demonstrated by typeset -p. En params.c en zsh, hasta la versión 5.4.2, hay un cierre inesperado durante la copia de una tabla de hashes vacía, tal y como demuestra typeset -p. A NULL pointer dereference flaw was found in the code responsible for saving hashtables of the zsh package. An attacker could use this flaw to cause a denial of service by crashing the user shell. • https://access.redhat.com/errata/RHSA-2018:3073 https://security.gentoo.org/glsa/201805-10 https://sourceforge.net/p/zsh/code/ci/c2cc8b0fbefc9868fa83537f5b6d90fc1ec438dd https://usn.ubuntu.com/3593-1 https://access.redhat.com/security/cve/CVE-2018-7549 https://bugzilla.redhat.com/show_bug.cgi?id=1549858 • CWE-20: Improper Input Validation CWE-665: Improper Initialization •