
CVE-2021-20197 – binutils: Race window allows users to own arbitrary files
https://notcve.org/view.php?id=CVE-2021-20197
26 Mar 2021 — There is an open race window when writing output in the following utilities in GNU binutils version 2.35 and earlier:ar, objcopy, strip, ranlib. When these utilities are run as a privileged user (presumably as part of a script updating binaries across different users), an unprivileged user can trick these utilities into getting ownership of arbitrary files through a symlink. Se presenta una ventana de carrera abierta cuando se escribe la salida en las siguientes utilidades en GNU binutils versiones 2.35 y a... • https://bugzilla.redhat.com/show_bug.cgi?id=1913743 • CWE-59: Improper Link Resolution Before File Access ('Link Following') CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •

CVE-2020-35508 – kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent
https://notcve.org/view.php?id=CVE-2020-35508
25 Feb 2021 — A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process. Se ha encontrado una posibilidad de fallo de condición de carrera y de inicialización incorrecta del id del proceso en el manejo del id del proceso child/parent del kernel de Linux mientras se filtran los manejadore... • https://bugzilla.redhat.com/show_bug.cgi?id=1902724 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-665: Improper Initialization •

CVE-2021-27219 – glib: integer overflow in g_bytes_new function on 64-bit platforms due to an implicit cast from 64 bits to 32 bits
https://notcve.org/view.php?id=CVE-2021-27219
15 Feb 2021 — An issue was discovered in GNOME GLib before 2.66.6 and 2.67.x before 2.67.3. The function g_bytes_new has an integer overflow on 64-bit platforms due to an implicit cast from 64 bits to 32 bits. The overflow could potentially lead to memory corruption. Se detectó un problema en GNOME GLib versiones anteriores a 2.66.6 y versiones 2.67.x anteriores a 2.67.3. La función g_bytes_new presenta un desbordamiento de enteros en plataformas de 64 bits debido a una conversión implícita de 64 bits a 32 bits. • https://gitlab.gnome.org/GNOME/glib/-/issues/2319 • CWE-681: Incorrect Conversion between Numeric Types CWE-787: Out-of-bounds Write •

CVE-2021-27218 – glib: integer overflow in g_byte_array_new_take function when called with a buffer of 4GB or more on a 64-bit platform
https://notcve.org/view.php?id=CVE-2021-27218
15 Feb 2021 — An issue was discovered in GNOME GLib before 2.66.7 and 2.67.x before 2.67.4. If g_byte_array_new_take() was called with a buffer of 4GB or more on a 64-bit platform, the length would be truncated modulo 2**32, causing unintended length truncation. Se detectó un problema en GNOME GLib versiones anteriores a 2.66.7 y versiones 2.67.x anteriores a 2.67.4. Si se llamó a la función g_byte_array_new_take() con un búfer de 4 GB o más sobre una plataforma de 64 bits, la longitud debería ser truncada módulo 2*... • https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1942 • CWE-190: Integer Overflow or Wraparound CWE-681: Incorrect Conversion between Numeric Types •

CVE-2020-35507 – Gentoo Linux Security Advisory 202107-24
https://notcve.org/view.php?id=CVE-2020-35507
04 Jan 2021 — There's a flaw in bfd_pef_parse_function_stubs of bfd/pef.c in binutils in versions prior to 2.34 which could allow an attacker who is able to submit a crafted file to be processed by objdump to cause a NULL pointer dereference. The greatest threat of this flaw is to application availability. Se presenta un fallo en bfd_pef_parse_function_stubs de bfd/pef.c en binutils en versiones anteriores a la 2.34 que podría permitir a un atacante que sea capaz de enviar un archivo crafteado para ser procesado por objd... • https://bugzilla.redhat.com/show_bug.cgi?id=1911691 • CWE-476: NULL Pointer Dereference •

CVE-2020-35496 – Gentoo Linux Security Advisory 202107-24
https://notcve.org/view.php?id=CVE-2020-35496
04 Jan 2021 — There's a flaw in bfd_pef_scan_start_address() of bfd/pef.c in binutils which could allow an attacker who is able to submit a crafted file to be processed by objdump to cause a NULL pointer dereference. The greatest threat of this flaw is to application availability. This flaw affects binutils versions prior to 2.34. Se presenta un fallo en la función bfd_pef_scan_start_address() del archivo bfd/pef.c en binutils que podría permitir que un atacante que puede enviar un archivo diseñado para ser procesado por... • https://bugzilla.redhat.com/show_bug.cgi?id=1911444 • CWE-476: NULL Pointer Dereference •

CVE-2020-35495 – Gentoo Linux Security Advisory 202107-24
https://notcve.org/view.php?id=CVE-2020-35495
04 Jan 2021 — There's a flaw in binutils /bfd/pef.c. An attacker who is able to submit a crafted input file to be processed by the objdump program could cause a null pointer dereference. The greatest threat from this flaw is to application availability. This flaw affects binutils versions prior to 2.34. Se presenta un fallo en el archivo /bfd/pef.c de binutils. • https://bugzilla.redhat.com/show_bug.cgi?id=1911441 • CWE-476: NULL Pointer Dereference •

CVE-2020-35494 – Gentoo Linux Security Advisory 202107-24
https://notcve.org/view.php?id=CVE-2020-35494
04 Jan 2021 — There's a flaw in binutils /opcodes/tic4x-dis.c. An attacker who is able to submit a crafted input file to be processed by binutils could cause usage of uninitialized memory. The highest threat is to application availability with a lower threat to data confidentiality. This flaw affects binutils versions prior to 2.34. Se presenta un fallo en el archivo /opcodes/tic4x-dis.c de binutils. • https://bugzilla.redhat.com/show_bug.cgi?id=1911439 • CWE-908: Use of Uninitialized Resource •

CVE-2020-35493 – Gentoo Linux Security Advisory 202107-24
https://notcve.org/view.php?id=CVE-2020-35493
04 Jan 2021 — A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a crafted PEF file to be parsed by objdump could cause a heap buffer overflow -> out-of-bounds read that could lead to an impact to application availability. This flaw affects binutils versions prior to 2.34. Se presenta un fallo en el archivo bfd/pef.c de binutils. Un atacante que pueda enviar un archivo PEF diseñado para que sea analizado por objdump podría causar un desbordamiento del búfer de pila -) lectura fuera de límites ... • https://bugzilla.redhat.com/show_bug.cgi?id=1911437 • CWE-20: Improper Input Validation •

CVE-2020-15436 – kernel: use-after-free in fs/block_dev.c
https://notcve.org/view.php?id=CVE-2020-15436
23 Nov 2020 — Use-after-free vulnerability in fs/block_dev.c in the Linux kernel before 5.8 allows local users to gain privileges or cause a denial of service by leveraging improper access to a certain error field. La vulnerabilidad de tipo use-after-free en el archivo fs/block_dev.c en el kernel de Linux versiones anteriores a 5.8, permite a usuarios locales obtener privilegios o causar una denegación de servicio al aprovechar el acceso inapropiado a un determinado campo de error A use-after-free flaw was observed in bl... • https://github.com/Trinadh465/linux-4.19.72_CVE-2020-15436 • CWE-416: Use After Free •