CVE-2020-27778 – poppler: pdftohtml: access to uninitialized pointer could lead to DoS
https://notcve.org/view.php?id=CVE-2020-27778
A flaw was found in Poppler in the way certain PDF files were converted into HTML. A remote attacker could exploit this flaw by providing a malicious PDF file that, when processed by the 'pdftohtml' program, would crash the application causing a denial of service. Se encontró un fallo en Poppler en la manera en que determinados archivos PDF se convertían a HTML. Un atacante remoto podría explotar este fallo proporcionando un archivo PDF malicioso que, cuando se procesaba por el programa "pdftohtml", bloquearía la aplicación y provocaría una denegación de servicio A flaw was found in Poppler in the way certain PDF files were converted into HTML. This flaw allows a remote attacker to provide a malicious PDF file that, when processed by the 'pdftohtml' program, crashes the application, causing a denial of service. • https://bugzilla.redhat.com/show_bug.cgi?id=1900712 https://lists.debian.org/debian-lts-announce/2022/09/msg00030.html https://access.redhat.com/security/cve/CVE-2020-27778 • CWE-824: Access of Uninitialized Pointer •
CVE-2020-16126 – accountsservice drops ruid, allows unprivileged users to send it signals
https://notcve.org/view.php?id=CVE-2020-16126
An Ubuntu-specific modification to AccountsService in versions before 0.6.55-0ubuntu13.2, among other earlier versions, improperly dropped the ruid, allowing untrusted users to send signals to AccountService, thus stopping it from handling D-Bus messages in a timely fashion. Una modificación específica de Ubuntu para AccountsService en versiones anteriores a 0.6.55-0ubuntu13.2, entre otras versiones anteriores, eliminó incorrectamente el ruid, lo que permitió a usuarios que no eran de confianza enviar señales a AccountService, impidiendo así que manejara los mensajes D-Bus de manera oportuna • https://securitylab.github.com/advisories/GHSL-2020-187-accountsservice-drop-privs-DOS • CWE-269: Improper Privilege Management •
CVE-2020-16127 – accountsservice .pam_environment infinite loop
https://notcve.org/view.php?id=CVE-2020-16127
An Ubuntu-specific modification to AccountsService in versions before 0.6.55-0ubuntu13.2, among other earlier versions, would perform unbounded read operations on user-controlled ~/.pam_environment files, allowing an infinite loop if /dev/zero is symlinked to this location. Una modificación específica de Ubuntu para AccountsService en versiones anteriores a 0.6.55-0ubuntu13.2, entre otras versiones anteriores, llevaría a cabo operaciones de lectura ilimitadas en archivos ~/.pam_environment controlados por el usuario, permitiendo un bucle infinito si /dev/zero está enlazado simbólicamente a esta ubicación • https://securitylab.github.com/advisories/GHSL-2020-187-accountsservice-drop-privs-DOS • CWE-20: Improper Input Validation CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVE-2020-12049 – dbus: denial of service via file descriptor leak
https://notcve.org/view.php?id=CVE-2020-12049
An issue was discovered in dbus >= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients. Se detectó un problema en dbus versiones posteriores a 1.3.0 e incluyéndola y anteriores a 1.12.18. El DBusServer en libdbus, como es usado en dbus-daemon, filtra los descriptores de archivo cuando un mensaje excede el límite del descriptor de archivo por mensaje. • http://packetstormsecurity.com/files/172840/D-Bus-File-Descriptor-Leak-Denial-Of-Service.html http://www.openwall.com/lists/oss-security/2020/06/04/3 https://gitlab.freedesktop.org/dbus/dbus/-/issues/294 https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.10.30 https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.12.18 https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.13.16 https://security.gentoo.org/glsa/202007-46 https://securitylab.github& • CWE-400: Uncontrolled Resource Consumption CWE-404: Improper Resource Shutdown or Release •
CVE-2019-20367
https://notcve.org/view.php?id=CVE-2019-20367
nlist.c in libbsd before 0.10.0 has an out-of-bounds read during a comparison for a symbol name from the string table (strtab). El archivo nlist.c en libbsd versiones anteriores a la versión 0.10.0, tiene una lectura fuera de límites durante una comparación de un nombre de símbolo de la tabla de cadenas (strtab). • http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00043.html https://gitlab.freedesktop.org/libbsd/libbsd/commit/9d917aad37778a9f4a96ba358415f077f3f36f3b https://lists.apache.org/thread.html/r0e913668380f59bcbd14fdd8ae8d24f95f99995e290cd18a7822c6e5%40%3Cdev.tomee.apache.org%3E https://lists.apache.org/thread.html/ra781e51cf1ec40381c98cddc073b3576fb56c3978f4564d2fa431550%40%3Cdev.tomee.apache.org%3E https://lists.debian.org/debian-lts-announce/2021/02/msg00027.html https://lists.freedesktop.org/archives/libbsd/2019-August/000229.html http • CWE-125: Out-of-bounds Read •