CVSS: 7.5EPSS: 0%CPEs: 10EXPL: 1CVE-2020-12673 – dovecot: Out of bound reads in dovecot NTLM implementation
https://notcve.org/view.php?id=CVE-2020-12673
In Dovecot before 2.3.11.3, sending a specially formatted NTLM request will crash the auth service because of an out-of-bounds read. En Dovecot versiones anteriores a 2.3.11.3, el envío de una petición NTLM con formato especial bloqueará el servicio auth debido a una lectura fuera de límites A flaw was found in dovecot. An out-of-bounds read flaw was found in the way dovecot handled NTLM authentication allowing an attacker to crash the dovecot auth process repeatedly preventing login. The highest threat from this vulnerability is to system availability. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00048.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00059.html https://dovecot.org/security https://lists.debian.org/debian-lts-announce/2020/08/msg00024.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4AAX2MJEULPVSRZOBX3PNPFSYP4FM4TT https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EYZU6CHA3VMYYAUCMHSCCQKJEVEIKPQ2 https://lists.fedoraproject.org/ar • CWE-125: Out-of-bounds Read •
CVSS: 7.5EPSS: 4%CPEs: 10EXPL: 1CVE-2020-12100 – dovecot: Resource exhaustion via deeply nested MIME parts
https://notcve.org/view.php?id=CVE-2020-12100
In Dovecot before 2.3.11.3, uncontrolled recursion in submission, lmtp, and lda allows remote attackers to cause a denial of service (resource consumption) via a crafted e-mail message with deeply nested MIME parts. En Dovecot versiones anteriores a 2.3.11.3, la recursividad no controlada en submission, lmtp, y lda permite a atacantes remotos causar una denegación de servicio (consumo de recursos) por medio de un mensaje de correo electrónico diseñado con partes MIME profundamente anidadas A flaw was found in dovecot. A remote attacker could cause a denial of service by repeatedly sending emails containing MIME parts containing malicious content of which dovecot will attempt to parse. The highest threat from this vulnerability is to system availability. • http://seclists.org/fulldisclosure/2021/Jan/18 http://www.openwall.com/lists/oss-security/2020/08/12/1 http://www.openwall.com/lists/oss-security/2021/01/04/3 https://dovecot.org/security https://lists.debian.org/debian-lts-announce/2020/08/msg00024.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4AAX2MJEULPVSRZOBX3PNPFSYP4FM4TT https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EYZU6CHA3VMYYAUCMHSCCQKJEVEIKPQ2 http • CWE-674: Uncontrolled Recursion •
CVSS: 7.5EPSS: 0%CPEs: 10EXPL: 1CVE-2020-12674 – dovecot: Crash due to assert in RPA implementation
https://notcve.org/view.php?id=CVE-2020-12674
In Dovecot before 2.3.11.3, sending a specially formatted RPA request will crash the auth service because a length of zero is mishandled. En Dovecot versiones anteriores a 2.3.11.3, el envío de una petición RPA con un formato especial bloqueará el servicio auth porque una longitud de cero es manejada inapropiadamente A flaw was found in dovecot. An attacker can use the way dovecot handles RPA (Remote Passphrase Authentication) to crash the authentication process repeatedly preventing login. The highest threat from this vulnerability is to system availability. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00048.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00059.html https://dovecot.org/security https://lists.debian.org/debian-lts-announce/2020/08/msg00024.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4AAX2MJEULPVSRZOBX3PNPFSYP4FM4TT https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EYZU6CHA3VMYYAUCMHSCCQKJEVEIKPQ2 https://lists.fedoraproject.org/ar • CWE-125: Out-of-bounds Read •
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 •