
CVE-2021-3690 – undertow: buffer leak on incoming websocket PONG message may lead to DoS
https://notcve.org/view.php?id=CVE-2021-3690
19 Aug 2021 — A flaw was found in Undertow. A buffer leak on the incoming WebSocket PONG message may lead to memory exhaustion. This flaw allows an attacker to cause a denial of service. The highest threat from this vulnerability is availability. Se ha encontrado un fallo en Undertow. • https://access.redhat.com/security/cve/CVE-2021-3690 • CWE-400: Uncontrolled Resource Consumption CWE-401: Missing Release of Memory after Effective Lifetime •

CVE-2020-14372 – grub2: acpi command allows privileged user to load crafted ACPI tables when Secure Boot is enabled
https://notcve.org/view.php?id=CVE-2020-14372
03 Mar 2021 — A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft a Secondary System Description Table (SSDT) containing code to overwrite the Linux kernel lockdown variable content directly into memory. The table is further loaded and executed by the kernel, defeating its Secure Boot lockdown and allowing the attacker to load unsigned code. The highest threat from this vul... • https://github.com/kukrimate/CVE-2020-14372 • CWE-184: Incomplete List of Disallowed Inputs •

CVE-2020-27749 – grub2: Stack buffer overflow in grub_parser_split_cmdline()
https://notcve.org/view.php?id=CVE-2020-27749
03 Mar 2021 — A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents, using a 1kB stack buffer for temporary storage, without sufficient bounds checking. If the function is called with a command line that references a variable with a sufficiently large payload, it is possible to overflow the stack buffer, corrupt the stack frame and control execution which could also circumvent Secure Boot protections. The highest th... • https://bugzilla.redhat.com/show_bug.cgi?id=1899966 • CWE-121: Stack-based Buffer Overflow CWE-787: Out-of-bounds Write •

CVE-2020-27779 – grub2: cutmem command allows privileged user to remove memory regions when Secure Boot is enabled
https://notcve.org/view.php?id=CVE-2020-27779
03 Mar 2021 — A flaw was found in grub2 in versions prior to 2.06. The cutmem command does not honor secure boot locking allowing an privileged attacker to remove address ranges from memory creating an opportunity to circumvent SecureBoot protections after proper triage about grub's memory layout. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en grub2 en versiones anteriores a 2.06. El comando cutmem no respeta el bloqueo de s... • https://bugzilla.redhat.com/show_bug.cgi?id=1900698 • CWE-285: Improper Authorization •

CVE-2021-20225 – grub2: Heap out-of-bounds write in short form option parser
https://notcve.org/view.php?id=CVE-2021-20225
03 Mar 2021 — A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en grub2 en versiones anteriores a 2.06. El analizador de opciones permite a un atacante escribir más allá del final de un búfer asignado a la pila... • https://bugzilla.redhat.com/show_bug.cgi?id=1924696 • CWE-787: Out-of-bounds Write •

CVE-2021-20233 – grub2: Heap out-of-bounds write due to miscalculation of space required for quoting
https://notcve.org/view.php?id=CVE-2021-20233
03 Mar 2021 — A flaw was found in grub2 in versions prior to 2.06. Setparam_prefix() in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an attacker to corrupt memory by one byte for each quote in the input. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en grub2 en versiones anteriores a 2.06.... • https://github.com/pauljrowland/BootHoleFix • CWE-787: Out-of-bounds Write •

CVE-2020-25632 – grub2: Use-after-free in rmmod command
https://notcve.org/view.php?id=CVE-2020-25632
03 Mar 2021 — A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en grub2 en versiones anteriores a 2.06. • https://github.com/pauljrowland/BootHoleFix • CWE-416: Use After Free •

CVE-2020-25647 – grub2: Out-of-bounds write in grub_usb_device_initialize()
https://notcve.org/view.php?id=CVE-2020-25647
03 Mar 2021 — A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en grub2 en versiones anterior... • https://bugzilla.redhat.com/show_bug.cgi?id=1886936 • CWE-787: Out-of-bounds Write •

CVE-2020-10687 – Undertow: Incomplete fix for CVE-2017-2666 due to permitting invalid characters in HTTP requests
https://notcve.org/view.php?id=CVE-2020-10687
17 Aug 2020 — A flaw was discovered in all versions of Undertow before Undertow 2.2.0.Final, where HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. Se detectó un fallo en todas las versiones de Undertow versiones anteriores a Undertow 2.2.0.Final, donde el tráfico malicioso de peticiones... • https://bugzilla.redhat.com/show_bug.cgi?id=1785049 • CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') •

CVE-2020-10688 – RESTEasy: RESTEASY003870 exception in RESTEasy can lead to a reflected XSS attack
https://notcve.org/view.php?id=CVE-2020-10688
28 May 2020 — A cross-site scripting (XSS) flaw was found in RESTEasy in versions before 3.11.1.Final and before 4.5.3.Final, where it did not properly handle URL encoding when the RESTEASY003870 exception occurs. An attacker could use this flaw to launch a reflected XSS attack. Se encontró un fallo de tipo cross-site scripting (XSS) en RESTEasy en versiones anteriores a 3.11.1.Final y anteriores a 4.5.3.Final, donde no manejaba apropiadamente la codificación de URL cuando ocurre la excepción RESTEASY003870. Un atac... • https://bugzilla.redhat.com/show_bug.cgi?id=1814974 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •