CVE-2021-20239 – kernel: setsockopt System Call Untrusted Pointer Dereference Information Disclosure
https://notcve.org/view.php?id=CVE-2021-20239
A flaw was found in the Linux kernel in versions before 5.4.92 in the BPF protocol. This flaw allows an attacker with a local account to leak information about kernel internal addresses. The highest threat from this vulnerability is to confidentiality. Se encontró un fallo en el kernel de Linux en versiones anteriores a 5.4.92 en el protocolo BPF. Este fallo permite a un atacante con una cuenta local filtrar información sobre las direcciones internas del kernel. • https://bugzilla.redhat.com/show_bug.cgi?id=1923636 https://access.redhat.com/security/cve/CVE-2021-20239 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-822: Untrusted Pointer Dereference •
CVE-2020-35524 – libtiff: Heap-based buffer overflow in TIFF2PDF tool
https://notcve.org/view.php?id=CVE-2020-35524
A heap-based buffer overflow flaw was found in libtiff in the handling of TIFF images in libtiff's TIFF2PDF tool. A specially crafted TIFF file can lead to arbitrary code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Se encontró un error de desbordamiento de búfer en la región heap de la memoria en libtiff en el manejo de imágenes TIFF en la herramienta TIFF2PDF de libtiff. Un archivo TIFF especialmente diseñado puede conllevar a una ejecución de código arbitraria. • https://bugzilla.redhat.com/show_bug.cgi?id=1932044 https://gitlab.com/libtiff/libtiff/-/merge_requests/159 https://gitlab.com/rzkn/libtiff/-/commit/7be2e452ddcf6d7abca88f41d3761e6edab72b22 https://lists.debian.org/debian-lts-announce/2021/06/msg00023.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMHBYFMX3D5VGR6Y3RXTTH3Q4NF4E6IG https://security.gentoo.org/glsa/202104-06 https://security.netapp.com/advisory/ntap-20210521-0009 https://www.debian.org/se • CWE-787: Out-of-bounds Write •
CVE-2020-35522 – libtiff: Memory allocation failure in tiff2rgba
https://notcve.org/view.php?id=CVE-2020-35522
In LibTIFF, there is a memory malloc failure in tif_pixarlog.c. A crafted TIFF document can lead to an abort, resulting in a remote denial of service attack. En LibTIFF, se presenta un fallo de memoria malloc en el archivo tif_pixarlog.c. Un documento TIFF diseñado puede conllevar a un aborto, resultando en un ataque de denegación de servicio remota • https://bugzilla.redhat.com/show_bug.cgi?id=1932037 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMHBYFMX3D5VGR6Y3RXTTH3Q4NF4E6IG https://security.gentoo.org/glsa/202104-06 https://security.netapp.com/advisory/ntap-20210521-0009 https://access.redhat.com/security/cve/CVE-2020-35522 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVE-2021-20246
https://notcve.org/view.php?id=CVE-2021-20246
A flaw was found in ImageMagick in MagickCore/resample.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. The highest threat from this vulnerability is to system availability. Se encontró un fallo en ImageMagick en el archivo MagickCore/resample.c. Un atacante que envía un archivo diseñado que es procesado por ImageMagick podría desencadenar un comportamiento indefinido en el formulario de división matemática por cero. • https://bugzilla.redhat.com/show_bug.cgi?id=1928941 https://lists.debian.org/debian-lts-announce/2021/03/msg00030.html https://lists.debian.org/debian-lts-announce/2023/05/msg00020.html • CWE-369: Divide By Zero •
CVE-2021-20245
https://notcve.org/view.php?id=CVE-2021-20245
A flaw was found in ImageMagick in coders/webp.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. The highest threat from this vulnerability is to system availability. Se encontró un fallo en ImageMagick en el archivo coders/webp.c. Un atacante que envía un archivo diseñado que es procesado por ImageMagick podría desencadenar un comportamiento indefinido en el formulario de división matemática por cero. • https://bugzilla.redhat.com/show_bug.cgi?id=1928943 https://github.com/ImageMagick/ImageMagick/issues/3176 https://lists.debian.org/debian-lts-announce/2021/06/msg00000.html https://lists.debian.org/debian-lts-announce/2023/05/msg00020.html • CWE-369: Divide By Zero •