CVSS: 7.5EPSS: 9%CPEs: 10EXPL: 1CVE-2020-12674 – dovecot: Crash due to assert in RPA implementation
https://notcve.org/view.php?id=CVE-2020-12674
12 Aug 2020 — 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 thre... • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00048.html • CWE-125: Out-of-bounds Read •
CVSS: 7.5EPSS: 19%CPEs: 10EXPL: 1CVE-2020-12100 – dovecot: Resource exhaustion via deeply nested MIME parts
https://notcve.org/view.php?id=CVE-2020-12100
12 Aug 2020 — 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 ... • http://seclists.org/fulldisclosure/2021/Jan/18 • CWE-674: Uncontrolled Recursion •
CVSS: 6.7EPSS: 0%CPEs: 11EXPL: 0CVE-2020-14344 – libX11: Heap overflow in the X input method client
https://notcve.org/view.php?id=CVE-2020-14344
05 Aug 2020 — An integer overflow leading to a heap-buffer overflow was found in The X Input Method (XIM) client was implemented in libX11 before version 1.6.10. As per upstream this is security relevant when setuid programs call XIM client functions while running with elevated privileges. No such programs are shipped with Red Hat Enterprise Linux. Se encontró un desbordamiento de enteros conllevando a un desbordamiento del búfer de la pila en el cliente X Input Method (XIM), se implementó en libX11 anterior a la versión... • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00014.html • CWE-190: Integer Overflow or Wraparound •
CVSS: 5.5EPSS: 0%CPEs: 107EXPL: 1CVE-2020-15701 – Unhandled exception in apport
https://notcve.org/view.php?id=CVE-2020-15701
05 Aug 2020 — 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 v... • https://launchpad.net/bugs/1877023 • 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
05 Aug 2020 — 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... • https://usn.ubuntu.com/4449-1 • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition •
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
05 Aug 2020 — 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 • CWE-20: Improper Input Validation CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2020-14347 – X.Org Server Pixel Data Uninitialized Memory Information Disclosure Vulnerability
https://notcve.org/view.php?id=CVE-2020-14347
04 Aug 2020 — A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable. Se encontró un fallo en la manera en que la memoria de xserver no fue inicializada apropiadamente. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00066.html • CWE-665: Improper Initialization •
CVSS: 4.3EPSS: 1%CPEs: 21EXPL: 0CVE-2020-16166 – kernel: information exposure in drivers/char/random.c and kernel/time/timer.c
https://notcve.org/view.php?id=CVE-2020-16166
30 Jul 2020 — The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive information about the internal state of the network RNG, aka CID-f227e3ec3b5c. This is related to drivers/char/random.c and kernel/time/timer.c. El kernel de Linux versiones hasta 5.7.11, permite a atacantes remotos realizar observaciones que ayudan a obtener información confidencial sobre el estado interno de la red RNG, también se conoce como CID-f227e3ec3b5c. Esto está relacionado con los archivos d... • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-330: Use of Insufficiently Random Values •
CVSS: 6.4EPSS: 0%CPEs: 32EXPL: 0CVE-2020-15705 – GRUB2: avoid loading unsigned kernels when GRUB is booted directly under secureboot without shim
https://notcve.org/view.php?id=CVE-2020-15705
29 Jul 2020 — GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions. GRUB2 presenta un fallo al comprobar la firma del kernel cuando se inicia directamente sin cuña, permitiendo que el arranque seguro sea omitido. Esto solo afe... • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00067.html • CWE-347: Improper Verification of Cryptographic Signature CWE-440: Expected Behavior Violation •
CVSS: 6.0EPSS: 0%CPEs: 13EXPL: 0CVE-2020-14310 – grub2: Integer overflow read_section_as_string may lead to heap-based buffer overflow
https://notcve.org/view.php?id=CVE-2020-14310
28 Jul 2020 — There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow. Se presenta un problema en grub2 ve... • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html • CWE-122: Heap-based Buffer Overflow CWE-190: Integer Overflow or Wraparound •