CVSS: 9.3EPSS: 0%CPEs: 1EXPL: 0CVE-2020-15708 – Libvirt Service Arbitrary File Write Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2020-15708
Ubuntu's packaging of libvirt in 20.04 LTS created a control socket with world read and write permissions. An attacker could use this to overwrite arbitrary files or execute arbitrary code. El paquete de Ubuntu de libvirt en versión 20.04 LTS creó un socket de control con permisos de lectura y escritura mundial. Un atacante podría utilizar esto para sobrescribir archivos arbitrarios o ejecutar código arbitrario This vulnerability allows local attackers to write arbitrary files on affected installations of Libvirt. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the libvirt service. • https://usn.ubuntu.com/usn/usn-4452-1 • CWE-732: Incorrect Permission Assignment for Critical Resource •
CVSS: 5.5EPSS: 0%CPEs: 30EXPL: 2CVE-2020-11937 – Resource exhaustion vulnerability in whoopsie
https://notcve.org/view.php?id=CVE-2020-11937
In whoopsie, parse_report() from whoopsie.c allows a local attacker to cause a denial of service via a crafted file. The DoS is caused by resource exhaustion due to a memory leak. Fixed in 0.2.52.5ubuntu0.5, 0.2.62ubuntu0.5 and 0.2.69ubuntu0.1. En whoopsie, la función parse_report() del archivo whoopsie.c, permite a un atacante local causar una denegación de servicio por medio de un archivo diseñado. La DoS es causada por el agotamiento de los recursos debido a una pérdida de memoria. • https://github.com/sungjungk/whoopsie_killer https://launchpad.net/bugs/1881982 https://usn.ubuntu.com/4450-1 • CWE-400: Uncontrolled Resource Consumption CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 5.5EPSS: 0%CPEs: 10EXPL: 0CVE-2020-15704 – pppd arbitrary file read information disclosure vulnerability
https://notcve.org/view.php?id=CVE-2020-15704
The modprobe child process in the ./debian/patches/load_ppp_generic_if_needed patch file incorrectly handled module loading. A local non-root attacker could exploit the MODPROBE_OPTIONS environment variable to read arbitrary root files. Fixed in 2.4.5-5ubuntu1.4, 2.4.5-5.1ubuntu2.3+esm2, 2.4.7-1+2ubuntu1.16.04.3, 2.4.7-2+2ubuntu1.3, 2.4.7-2+4.1ubuntu5.1, 2.4.7-2+4.1ubuntu6. Was ZDI-CAN-11504. • https://ubuntu.com/security/notices/USN-4451-1 https://ubuntu.com/security/notices/USN-4451-2 • CWE-20: Improper Input Validation CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 5.5EPSS: 0%CPEs: 107EXPL: 1CVE-2020-15701 – Unhandled exception in apport
https://notcve.org/view.php?id=CVE-2020-15701
An unhandled exception in check_ignored() in apport/report.py can be exploited by a local attacker to cause a denial of service. If the mtime attribute is a string value in apport-ignore.xml, it will trigger an unhandled exception, resulting in a crash. Fixed in 2.20.1-0ubuntu2.24, 2.20.9-0ubuntu7.16, 2.20.11-0ubuntu27.6. Un atacante local puede explotar una excepción no manejada en la función check_ignored() en el archivo apport/report.py para causar una denegación de servicio. Si el atributo mtime es un valor de cadena en apport-ignore.xml, desencadenará una excepción no manejada, resultando en un bloqueo. • https://launchpad.net/bugs/1877023 https://usn.ubuntu.com/4449-1 https://usn.ubuntu.com/4449-2 • CWE-755: Improper Handling of Exceptional Conditions •
CVSS: 7.0EPSS: 0%CPEs: 104EXPL: 0CVE-2020-15702 – TOCTOU in apport
https://notcve.org/view.php?id=CVE-2020-15702
TOCTOU Race Condition vulnerability in apport allows a local attacker to escalate privileges and execute arbitrary code. An attacker may exit the crashed process and exploit PID recycling to spawn a root process with the same PID as the crashed process, which can then be used to escalate privileges. Fixed in 2.20.1-0ubuntu2.24, 2.20.9 versions prior to 2.20.9-0ubuntu7.16 and 2.20.11 versions prior to 2.20.11-0ubuntu27.6. Was ZDI-CAN-11234. La vulnerabilidad de Condición de Carrera TOCTOU en apport permite a un atacante local escalar privilegios y ejecutar código arbitrario. • https://usn.ubuntu.com/4449-1 https://usn.ubuntu.com/4449-2 https://www.zerodayinitiative.com/advisories/ZDI-20-979 • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition •