
CVE-2021-4115 – polkit: file descriptor leak allows an unprivileged user to cause a crash
https://notcve.org/view.php?id=CVE-2021-4115
21 Feb 2022 — There is a flaw in polkit which can allow an unprivileged user to cause polkit to crash, due to process file descriptor exhaustion. The highest threat from this vulnerability is to availability. NOTE: Polkit process outage duration is tied to the failing process being reaped and a new one being spawned Se presenta un fallo en polkit que puede permitir a un usuario no privilegiado causar un bloqueo de polkit, debido al agotamiento del descriptor de archivos del proceso. La mayor amenaza de esta vulnerabilida... • https://packetstorm.news/files/id/172849 • CWE-400: Uncontrolled Resource Consumption CWE-403: Exposure of File Descriptor to Unintended Control Sphere ('File Descriptor Leak') •

CVE-2021-23177 – libarchive: extracting a symlink with ACLs modifies ACLs of target
https://notcve.org/view.php?id=CVE-2021-23177
17 Feb 2022 — An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL of a file on the system and gain more privileges. Un fallo de resolución de enlaces inapropiado mientras es extraído un archivo puede conllevar a un cambio de la lista de control de acceso (ACL)... • https://access.redhat.com/security/cve/CVE-2021-23177 • CWE-59: Improper Link Resolution Before File Access ('Link Following') •

CVE-2022-0135 – Ubuntu Security Notice USN-5309-1
https://notcve.org/view.php?id=CVE-2022-0135
17 Feb 2022 — An out-of-bounds write issue was found in the VirGL virtual OpenGL renderer (virglrenderer). This flaw allows a malicious guest to create a specially crafted virgil resource and then issue a VIRTGPU_EXECBUFFER ioctl, leading to a denial of service or possible code execution. Se ha encontrado un problema de escritura fuera de límites en el renderizador virtual OpenGL de VirGL (virglrenderer). Este defecto permite a un invitado malicioso crear un recurso virgil especialmente diseñado y luego emitir un ioctl V... • https://bugzilla.redhat.com/show_bug.cgi?id=2037790 • CWE-787: Out-of-bounds Write •

CVE-2022-0561 – libtiff: Denial of Service via crafted TIFF file
https://notcve.org/view.php?id=CVE-2022-0561
11 Feb 2022 — Null source pointer passed as an argument to memcpy() function within TIFFFetchStripThing() in tif_dirread.c in libtiff versions from 3.9.0 to 4.3.0 could lead to Denial of Service via crafted TIFF file. For users that compile libtiff from sources, the fix is available with commit eecb0712. Un puntero fuente null pasado como argumento a la función memcpy() dentro de TIFFFetchStripThing() en el archivo tif_dirread.c en libtiff versiones 3.9.0 a 4.3.0, podía conllevar a una denegación de servicio por medio de... • https://gitlab.com/freedesktop-sdk/mirrors/gitlab/libtiff/libtiff/-/commit/eecb0712f4c3a5b449f70c57988260a667ddbdef • CWE-476: NULL Pointer Dereference •

CVE-2021-4159 – Ubuntu Security Notice USN-5790-1
https://notcve.org/view.php?id=CVE-2021-4159
10 Feb 2022 — A vulnerability was found in the Linux kernel's EBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel. Se encontró una vulnerabilidad en el verificador EBPF del kernel de Linux cuando son manejadas estructuras de datos internas. Las ubicaciones de memoria interna ... • https://access.redhat.com/security/cve/CVE-2021-4159 • CWE-202: Exposure of Sensitive Information Through Data Queries •

CVE-2022-0529 – Gentoo Linux Security Advisory 202310-17
https://notcve.org/view.php?id=CVE-2022-0529
09 Feb 2022 — A flaw was found in Unzip. The vulnerability occurs during the conversion of a wide string to a local string that leads to a heap of out-of-bound write. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution. Se ha encontrado un fallo en Unzip. La vulnerabilidad se produce durante la conversión de una cadena amplia a una cadena local que conduce a un montón de escritura fuera de límites. • https://github.com/nanaao/unzip_poc • CWE-787: Out-of-bounds Write •

CVE-2022-0530 – Gentoo Linux Security Advisory 202310-17
https://notcve.org/view.php?id=CVE-2022-0530
09 Feb 2022 — A flaw was found in Unzip. The vulnerability occurs during the conversion of a wide string to a local string that leads to a heap of out-of-bound write. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution. Se ha encontrado un fallo en Unzip. La vulnerabilidad se produce durante la conversión de una cadena amplia a una cadena local que conduce a un montón de escritura fuera de límites. • http://seclists.org/fulldisclosure/2022/May/33 •

CVE-2022-0487 – Ubuntu Security Notice USN-6014-1
https://notcve.org/view.php?id=CVE-2022-0487
04 Feb 2022 — A use-after-free vulnerability was found in rtsx_usb_ms_drv_remove in drivers/memstick/host/rtsx_usb_ms.c in memstick in the Linux kernel. In this flaw, a local attacker with a user privilege may impact system Confidentiality. This flaw affects kernel versions prior to 5.14 rc1. Se ha encontrado una vulnerabilidad de uso de memoria previamente liberada en la función rtsx_usb_ms_drv_remove en el archivo drivers/memstick/host/rtsx_usb_ms.c en memstick en el kernel de Linux. En este fallo, un atacante local co... • https://bugzilla.redhat.com/show_bug.cgi?id=2044561 • CWE-416: Use After Free •

CVE-2021-44142 – Samba fruit_pwrite Heap-based Buffer Overflow Remote Code Execution Vulnerability
https://notcve.org/view.php?id=CVE-2021-44142
01 Feb 2022 — The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root. El módulo vfs_fruit de S... • https://github.com/horizon3ai/CVE-2021-44142 • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •

CVE-2021-20316 – samba: Symlink race error can allow metadata read and modify outside of the exported share
https://notcve.org/view.php?id=CVE-2021-20316
01 Feb 2022 — A flaw was found in the way Samba handled file/directory metadata. This flaw allows an authenticated attacker with permissions to read or modify share metadata, to perform this operation outside of the share. Se ha encontrado un fallo en la forma en que Samba maneja los metadatos de los archivos/directorios. Este fallo permite a un atacante autenticado con permisos para leer o modificar los metadatos del recurso compartido, llevar a cabo esta operación fuera del recurso compartido. Red Hat Gluster Storage i... • https://access.redhat.com/security/cve/CVE-2021-20316 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •