CVE-2020-14311 – grub2: Integer overflow in grub_ext2_read_link leads to heap-based buffer overflow
https://notcve.org/view.php?id=CVE-2020-14311
28 Jul 2020 — There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow. Se presenta un problema con grub2 versiones anteriores a 2.06, mientras se maneja un symlink en los sistemas de archivos ext. Un sistema de archivos que contiene un enlace simbólico con un tamaño de inode de UINT32_MAX causa un des... • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html • CWE-122: Heap-based Buffer Overflow CWE-190: Integer Overflow or Wraparound •
CVE-2020-15659 – Mozilla: Memory safety bugs fixed in Firefox 79 and Firefox ESR 68.11
https://notcve.org/view.php?id=CVE-2020-15659
28 Jul 2020 — Mozilla developers and community members reported memory safety bugs present in Firefox 78 and Firefox ESR 78.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 79, Firefox ESR < 68.11, Firefox ESR < 78.1, Thunderbird < 68.11, and Thunderbird < 78.1. Los desarrolladores de Mozilla y los miembros de la comunidad informaron bugs de seguridad de la memoria presentes... • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00022.html • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •
CVE-2020-15706 – GRUB2 contains a race condition leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing.
https://notcve.org/view.php?id=CVE-2020-15706
28 Jul 2020 — GRUB2 contains a race condition in grub_script_function_create() leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing, leading to arbitrary code execution and secure boot restriction bypass. This issue affects GRUB2 version 2.04 and prior versions. GRUB2 contiene una condición de carrera en la función grub_script_function_create() que conlleva a una vulnerabilidad de uso de la memoria previamente liberada la cual puede ser de... • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •
CVE-2020-15863
https://notcve.org/view.php?id=CVE-2020-15863
28 Jul 2020 — hw/net/xgmac.c in the XGMAC Ethernet controller in QEMU before 07-20-2020 has a buffer overflow. This occurs during packet transmission and affects the highbank and midway emulated machines. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service or potential privileged code execution. This was fixed in commit 5519724a13664b43e225ca05351c60b4468e4555. El archivo hw/net/xgmac.c en el controlador Ethernet XGMAC en QEMU antes del 20/07/2020, presenta ... • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html • CWE-787: Out-of-bounds Write •
CVE-2020-15103 – Integer Overflow in FreeRDP
https://notcve.org/view.php?id=CVE-2020-15103
27 Jul 2020 — In FreeRDP less than or equal to 2.1.2, an integer overflow exists due to missing input sanitation in rdpegfx channel. All FreeRDP clients are affected. The input rectangles from the server are not checked against local surface coordinates and blindly accepted. A malicious server can send data that will crash the client later on (invalid length arguments to a `memcpy`) This has been fixed in 2.2.0. As a workaround, stop using command line arguments /gfx, /gfx-h264 and /network:auto En FreeRDP versiones ante... • http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00010.html • CWE-122: Heap-based Buffer Overflow CWE-190: Integer Overflow or Wraparound CWE-680: Integer Overflow to Buffer Overflow •
CVE-2020-11935 – aufs: improperly managed inode reference counts in the vfsub_dentry_open() method
https://notcve.org/view.php?id=CVE-2020-11935
22 Jul 2020 — It was discovered that aufs improperly managed inode reference counts in the vfsub_dentry_open() method. A local attacker could use this vulnerability to cause a denial of service attack. • https://bugs.launchpad.net/bugs/1873074 • CWE-911: Improper Update of Reference Count •
CVE-2020-6514 – chromium-browser: Inappropriate implementation in WebRTC
https://notcve.org/view.php?id=CVE-2020-6514
22 Jul 2020 — Inappropriate implementation in WebRTC in Google Chrome prior to 84.0.4147.89 allowed an attacker in a privileged network position to potentially exploit heap corruption via a crafted SCTP stream. Una implementación inapropiada en WebRTC en Google Chrome versiones anteriores a 84.0.4147.89, permitió a un atacante en una posición de red privilegiada potencialmente explotar una corrupción de la pila por medio de un flujo SCTP diseñado • https://github.com/hasan-khalil/CVE-2020-6514 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVE-2020-14928 – evolution-data-server: Response injection via STARTTLS in SMTP and POP3
https://notcve.org/view.php?id=CVE-2020-14928
17 Jul 2020 — evolution-data-server (eds) through 3.36.3 has a STARTTLS buffering issue that affects SMTP and POP3. When a server sends a "begin TLS" response, eds reads additional data and evaluates it in a TLS context, aka "response injection." evolution-data-server (eds) versiones hasta 3.36.3, presenta un problema de almacenamiento en búfer STARTTLS que afecta a SMTP y POP3. Cuando un servidor envía una respuesta "begin TLS", eds lee datos adicionales y los evalúa en un contexto TLS, también se conoce como "response ... • https://bugzilla.suse.com/show_bug.cgi?id=1173910 • CWE-20: Improper Input Validation CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') •
CVE-2020-3481 – Clam AntiVirus (ClamAV) Software Null Pointer Dereference Vulnerability
https://notcve.org/view.php?id=CVE-2020-3481
16 Jul 2020 — A vulnerability in the EGG archive parsing module in Clam AntiVirus (ClamAV) Software versions 0.102.0 - 0.102.3 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to a null pointer dereference. An attacker could exploit this vulnerability by sending a crafted EGG file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a denial of service condition. Una vulnera... • https://blog.clamav.net/2020/07/clamav-01024-security-patch-released.html • CWE-476: NULL Pointer Dereference •
CVE-2020-11934 – Sandbox escape vulnerability via snapctl user-open (xdg-open)
https://notcve.org/view.php?id=CVE-2020-11934
15 Jul 2020 — It was discovered that snapctl user-open allowed altering the $XDG_DATA_DIRS environment variable when calling the system xdg-open. OpenURL() in usersession/userd/launcher.go would alter $XDG_DATA_DIRS to append a path to a directory controlled by the calling snap. A malicious snap could exploit this to bypass intended access restrictions to control how the host system xdg-open script opens the URL and, for example, execute a script shipped with the snap without confinement. This issue did not affect Ubuntu... • https://launchpad.net/bugs/1880085 • CWE-668: Exposure of Resource to Wrong Sphere •