CVSS: 8.8EPSS: 1%CPEs: 19EXPL: 0CVE-2021-3570 – linuxptp: missing length check of forwarded messages
https://notcve.org/view.php?id=CVE-2021-3570
A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This flaw affects linuxptp versions before 3.1.1, before 2.0.1, before 1.9.3, before 1.8.1, before 1.7.1, before 1.6.1 and before 1.5.1. Se ha encontrado un fallo en el programa ptp4l del paquete linuxptp. • https://bugzilla.redhat.com/show_bug.cgi?id=1966240 https://lists.debian.org/debian-lts-announce/2021/07/msg00025.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RHRUVSDP673LXJ5HGIPQPWPIYUPWYQA7 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUBKTRCMJ6VKS7DIBSZQB4ATSKVCJYXJ https://www.debian.org/security/2021/dsa-4938 https://access.redhat.com/security/cve/CVE-2021-3570 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 12EXPL: 1CVE-2021-3516 – libxml2: Use-after-free in xmlEncodeEntitiesInternal() in entities.c
https://notcve.org/view.php?id=CVE-2021-3516
There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability. Se encontró un fallo en xmllint de libxml2 en versiones anteriores a 2.9.11. Un atacante que es capaz de enviar un archivo diseñado para ser procesado por xmllint podría desencadenar un uso de la memoria previamente liberada. • https://bugzilla.redhat.com/show_bug.cgi?id=1954225 https://gitlab.gnome.org/GNOME/libxml2/-/commit/1358d157d0bd83be1dfe356a69213df9fac0b539 https://gitlab.gnome.org/GNOME/libxml2/-/issues/230 https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV https://security& • CWE-416: Use After Free •
CVSS: 5.3EPSS: 0%CPEs: 4EXPL: 1CVE-2021-20201 – spice: Client initiated renegotiation denial of service
https://notcve.org/view.php?id=CVE-2021-20201
A flaw was found in spice in versions before 0.14.92. A DoS tool might make it easier for remote attackers to cause a denial of service (CPU consumption) by performing many renegotiations within a single connection. Se encontró un fallo en spice en versiones anteriores a 0.14.92. Una herramienta DoS podría facilitar a atacantes remotos causar una denegación de servicio (consumo de CPU) al llevar a cabo muchas renegociaciones dentro de una sola conexión A flaw was found in spice. A DoS tool might make it easier for remote attackers to cause a denial of service (CPU consumption) by performing many renegotiations within a single connection. • https://blog.qualys.com/product-tech/2011/10/31/tls-renegotiation-and-denial-of-service-attacks https://bugzilla.redhat.com/show_bug.cgi?id=1921846 https://security.gentoo.org/glsa/202208-10 https://access.redhat.com/security/cve/CVE-2021-20201 • CWE-400: Uncontrolled Resource Consumption •
CVSS: 7.5EPSS: 1%CPEs: 25EXPL: 0CVE-2021-3537 – libxml2: NULL pointer dereference when post-validating mixed content parsed in recovery mode
https://notcve.org/view.php?id=CVE-2021-3537
A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and post-validated, the flaw could be used to crash the application. The highest threat from this vulnerability is to system availability. Una vulnerabilidad encontrada en libxml2 en versiones anteriores a 2.9.11 muestra que no propagó errores al analizar el contenido mixto XML, causando una desreferencia de NULL. Si un documento XML que no es confiable fue analizado en modo de recuperación y pos-comprobado, el fallo podría usarse para bloquear la aplicación. • https://bugzilla.redhat.com/show_bug.cgi?id=1956522 https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV https://security.gentoo.org/glsa/202107-05 https://security.netapp.com/advisory/ntap-20210625-0002 https://www.oracle.com/security-alerts/cpuapr2022.html • CWE-476: NULL Pointer Dereference •
CVSS: 7.2EPSS: 0%CPEs: 10EXPL: 0CVE-2021-20292
https://notcve.org/view.php?id=CVE-2021-20292
There is a flaw reported in the Linux kernel in versions before 5.9 in drivers/gpu/drm/nouveau/nouveau_sgdma.c in nouveau_sgdma_create_ttm in Nouveau DRM subsystem. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker with a local account with a root privilege, can leverage this vulnerability to escalate privileges and execute code in the context of the kernel. Se presenta un fallo reportado en el kernel de Linux en versiones anteriores a 5.9, en el archivo drivers/gpu/drm/nouveau/nouveau_sgdma.c en la función nouveau_sgdma_create_ttm en el subsistema Nouveau DRM. El problema es debido a una falta de comprobación de la existencia de un objeto antes de llevar a cabo operaciones en el objeto. • https://bugzilla.redhat.com/show_bug.cgi?id=1939686 https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html • CWE-416: Use After Free •