
CVE-2021-4154 – kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout
https://notcve.org/view.php?id=CVE-2021-4154
20 Jan 2022 — A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system. Se encontró un defecto de uso de memoria previamente liberada en la función cgroup1_parse_param en el archivo kernel/cgroup/cgroup-v1.c en el analizador cgroup v1 del kernel de Linux. Un atacante lo... • https://github.com/Markakd/CVE-2021-4154 • CWE-416: Use After Free •

CVE-2021-45417 – aide: heap-based buffer overflow on outputs larger than B64_BUF
https://notcve.org/view.php?id=CVE-2021-45417
20 Jan 2022 — AIDE before 0.17.4 allows local users to obtain root privileges via crafted file metadata (such as XFS extended attributes or tmpfs ACLs), because of a heap-based buffer overflow. AIDE versiones anteriores a 0.17.4, permite a usuarios locales obtener privilegios de root por medio de metadatos de archivo diseñados (como atributos extendidos de XFS o ACLs de tmpfs), debido a un desbordamiento de búfer en la región heap de la memoria A heap-based buffer overflow vulnerability in the base64 functions of AIDE, a... • http://www.openwall.com/lists/oss-security/2022/01/20/3 • CWE-787: Out-of-bounds Write •

CVE-2022-0175 – Ubuntu Security Notice USN-5309-1
https://notcve.org/view.php?id=CVE-2022-0175
18 Jan 2022 — A flaw was found in the VirGL virtual OpenGL renderer (virglrenderer). The virgl did not properly initialize memory when allocating a host-backed memory resource. A malicious guest could use this flaw to mmap from the guest kernel and read this uninitialized memory from the host, possibly leading to information disclosure. Se encontró un fallo en VirGL virtual OpenGL renderer (virglrenderer). El virgl no inicializaba apropiadamente la memoria cuando asignaba un recurso de memoria respaldado por el host. • https://access.redhat.com/security/cve/CVE-2022-0175 • CWE-909: Missing Initialization of Resource •

CVE-2021-3827 – keycloak-server-spi-private: ECP SAML binding bypasses authentication flows
https://notcve.org/view.php?id=CVE-2021-3827
18 Jan 2022 — A flaw was found in keycloak, where the default ECP binding flow allows other authentication flows to be bypassed. By exploiting this behavior, an attacker can bypass the MFA authentication by sending a SOAP request with an AuthnRequest and Authorization header with the user's credentials. The highest threat from this vulnerability is to confidentiality and integrity. Se ha encontrado un fallo en keycloak, en el que el flujo de vinculación ECP por defecto permite omitir otros flujos de autenticación. Al exp... • https://access.redhat.com/security/cve/CVE-2021-3827 • CWE-287: Improper Authentication •

CVE-2022-21682 – flatpak-builder can access files outside the build directory.
https://notcve.org/view.php?id=CVE-2022-21682
13 Jan 2022 — Flatpak is a Linux application sandboxing and distribution framework. A path traversal vulnerability affects versions of Flatpak prior to 1.12.3 and 1.10.6. flatpak-builder applies `finish-args` last in the build. At this point the build directory will have the full access that is specified in the manifest, so running `flatpak build` against it will gain those permissions. Normally this will not be done, so this is not problem. However, if `--mirror-screenshots-url` is specified, then flatpak-builder will l... • https://github.com/flatpak/flatpak/commit/445bddeee657fdc8d2a0a1f0de12975400d4fc1a • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •

CVE-2021-3997 – Gentoo Linux Security Advisory 202305-15
https://notcve.org/view.php?id=CVE-2021-3997
13 Jan 2022 — A flaw was found in systemd. An uncontrolled recursion in systemd-tmpfiles may lead to a denial of service at boot time when too many nested directories are created in /tmp. Se ha encontrado un fallo en systemd. Una recursión no controlada en systemd-tmpfiles puede conllevar a una denegación de servicio en el momento del arranque cuando son creados demasiados directorios anidados en /tmp. An update that solves four vulnerabilities and has two fixes is now available. • https://access.redhat.com/security/cve/CVE-2021-3997 • CWE-674: Uncontrolled Recursion •

CVE-2021-43860 – Permissions granted to applications can be hidden from the user at install time
https://notcve.org/view.php?id=CVE-2021-43860
12 Jan 2022 — Flatpak is a Linux application sandboxing and distribution framework. Prior to versions 1.12.3 and 1.10.6, Flatpak doesn't properly validate that the permissions displayed to the user for an app at install time match the actual permissions granted to the app at runtime, in the case that there's a null byte in the metadata file of an app. Therefore apps can grant themselves permissions without the consent of the user. Flatpak shows permissions to the user during install by reading them from the "xa.metadata"... • https://github.com/flatpak/flatpak/commit/54ec1a482dfc668127eaae57f135e6a8e0bc52da • CWE-269: Improper Privilege Management CWE-276: Incorrect Default Permissions •

CVE-2021-41817 – ruby: Regular expression denial of service vulnerability of Date parsing methods
https://notcve.org/view.php?id=CVE-2021-41817
01 Jan 2022 — Date.parse in the date gem through 3.2.0 for Ruby allows ReDoS (regular expression Denial of Service) via a long string. The fixed versions are 3.2.1, 3.1.2, 3.0.2, and 2.0.1. Date.parse en date gem versiones hasta 3.2.0 para Ruby, permite ReDoS (expresión regular de denegación de servicio) por medio de una cadena larga. Las versiones corregidas son 3.2.1, 3.1.2, 3.0.2 y 2.0.1. A flaw was found in ruby, where the date object was found to be vulnerable to a regular expression denial of service (ReDoS) during... • https://hackerone.com/reports/1254844 • CWE-400: Uncontrolled Resource Consumption CWE-1333: Inefficient Regular Expression Complexity •

CVE-2021-41819 – ruby: Cookie prefix spoofing in CGI::Cookie.parse
https://notcve.org/view.php?id=CVE-2021-41819
01 Jan 2022 — CGI::Cookie.parse in Ruby through 2.6.8 mishandles security prefixes in cookie names. This also affects the CGI gem through 0.3.0 for Ruby. CGI::Cookie.parse en Ruby versiones hasta 2.6.8, maneja inapropiadamente los prefijos de seguridad en los nombres de las cookies. Esto también afecta a CGI gem versiones hasta 0.3.0 para Ruby. A flaw was found in Ruby. • https://hackerone.com/reports/910552 • CWE-565: Reliance on Cookies without Validation and Integrity Checking •

CVE-2021-4166 – Out-of-bounds Read in vim/vim
https://notcve.org/view.php?id=CVE-2021-4166
25 Dec 2021 — vim is vulnerable to Out-of-bounds Read vim es vulnerable a una Lectura Fuera de Límites It was discovered that Vim was incorrectly processing Vim buffers. An attacker could possibly use this issue to perform illegal memory access and expose sensitive information. This issue only affected Ubuntu 20.04 LTS. It was discovered that Vim was using freed memory when dealing with regular expressions inside a visual selection. If a user were tricked into opening a specially crafted file, an attacker could crash the... • http://seclists.org/fulldisclosure/2022/Jul/14 • CWE-125: Out-of-bounds Read •