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CVSS: 6.2EPSS: 0%CPEs: 8EXPL: 0

A flaw memory leak in the Linux kernel performance monitoring subsystem was found in the way if using PERF_EVENT_IOC_SET_FILTER. A local user could use this flaw to starve the resources causing denial of service. Se encontró una perdida de memoria de fallo en el subsistema de monitoreo del rendimiento del kernel de Linux en el modo si se usaba PERF_EVENT_IOC_SET_FILTER. Un usuario local podría utilizar este fallo para privar los recursos causando una denegación de servicio A memory leak flaw was found in the Linux kernel’s performance monitoring subsystem when using PERF_EVENT_IOC_SET_FILTER. This flaw allows a local user to starve the resources, causing a denial of service. • https://bugzilla.redhat.com/show_bug.cgi?id=1895961 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7bdb157cdebbf95a1cd94ed2e01b338714075d00 https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html https://www.openwall.com/lists/oss-security/2020/11/09/1 https://www.starwindsoftware.com/security/sw-20220802-0003 https://access.redhat.com/security/cve/CVE-2020-25704 • CWE-401: Missing Release of Memory after Effective Lifetime •

CVSS: 4.1EPSS: 0%CPEs: 11EXPL: 2

A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality. Se encontró un fallo en el kernel de Linux. • https://bugzilla.redhat.com/show_bug.cgi?id=1888726 https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html https://lkml.org/lkml/2020/10/16/84 https://lkml.org/lkml/2020/10/29/528 https://www.starwindsoftware.com/security/sw-20210325-0006 https://access.redhat.com/security/cve/CVE-2020-25656 • CWE-416: Use After Free •

CVSS: 7.5EPSS: 0%CPEs: 26EXPL: 0

A flaw was found in the HDLC_PPP module of the Linux kernel in versions before 5.9-rc7. Memory corruption and a read overflow is caused by improper input validation in the ppp_cp_parse_cr function which can cause the system to crash or cause a denial of service. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo de corrupción de la memoria en el kernel de Linux en versiones anteriores a 5.9-rc7, en el módulo HDLC_PPP en la manera en que recibe paquetes malformados por el protocolo PPP. Un usuario remoto podría usar este fallo para bloquear el sistema o causar una denegación de servicio A flaw was found in the HDLC_PPP module of the Linux kernel. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html https://bugzilla.redhat.com/show_bug.cgi?id=1879981 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=66d42ed8b25b64eb63111a2b8582c5afc8bf1105 https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html https://lists.debian.org/debian-lts-announce/ • CWE-20: Improper Input Validation •

CVSS: 5.5EPSS: 0%CPEs: 10EXPL: 0

In create_pinctrl of core.c, there is a possible out of bounds read due to a use after free. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-140550171 En la función create_pinctrl del archivo core.c, se presenta una posible lectura fuera de límites debido a un uso de la memoria previamente liberada. Esto podría conllevar a una divulgación de información local sin ser necesarios privilegios de ejecución adicionales. No es requerida una interacción del usuario para su explotación. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html http://packetstormsecurity.com/files/161229/Kernel-Live-Patch-Security-Notice-LSN-0074-1.html https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html https://source.android.com/security/bulletin/pixel/2020-09-01 https://www.starwindsoftware.com/security/sw-20210325-0005 https://access.redhat.com/security/cve/CVE-2020-0427 https://bugzi • CWE-125: Out-of-bounds Read CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-416: Use After Free •

CVSS: 5.5EPSS: 0%CPEs: 13EXPL: 0

A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash the system if the directory exists. The highest threat from this vulnerability is to system availability. Se encontró un fallo de lectura de memoria fuera de límites en el kernel de Linux versiones anteriores a 5.9-rc2, con el sistema de archivos ext3/ext4, en la manera en que accede a un directorio con indexación rota. Este fallo permite a un usuario local bloquear el sistema si el directorio existe. • https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14314 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5872331b3d91820e14716632ebb56b1399b34fe1 https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html https://lore.kernel.org/linux-ext4/f53e246b-647c-64bb-16ec-135383c70ad7%40redhat.com/T/#u https://usn.ubuntu. • CWE-125: Out-of-bounds Read •