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CVSS: 5.5EPSS: 0%CPEs: 15EXPL: 0

A flaw was found in the Linux kernel's implementation of biovecs in versions before 5.9-rc7. A zero-length biovec request issued by the block subsystem could cause the kernel to enter an infinite loop, causing a denial of service. This flaw allows a local attacker with basic privileges to issue requests to a block device, resulting in a denial of service. The highest threat from this vulnerability is to system availability. Se encontró un fallo en la implementación de biovecs del kernel de Linux en versiones anteriores a 5.9-rc7. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html http://www.openwall.com/lists/oss-security/2020/10/06/9 https://bugzilla.redhat.com/show_bug.cgi?id=1881424 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7e24969022cbd61ddc586f14824fc205661bb124 https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html https://lists.debian.org/debian-lts-announce/2020/ • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVSS: 7.2EPSS: 0%CPEs: 3EXPL: 1

A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró que ocurría un problema de doble liberación de la memoria en la API de libvirt, en versiones anteriores a 6.8.0, responsable de pedir información sobre unas interfaces de red de un dominio QEMU en ejecución. • https://github.com/brahmiboudjema/CVE-2020-25637-libvirt-double-free http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00072.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00073.html https://bugzilla.redhat.com/show_bug.cgi?id=1881037 https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html https://security.gentoo.org/glsa/202210-06 https://access.redhat.com/security/cve/CVE-2020-25637 • CWE-415: Double 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: 5.3EPSS: 0%CPEs: 5EXPL: 1

A missing rate limit in the Preferred Providers app 1.7.0 allowed an attacker to set the password an uncontrolled amount of times. Una falta de límite de velocidad en la aplicación Preferred Providers versión 1.7.0, permitió a un atacante ajustar la contraseña una cantidad de veces no controlada • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00019.html https://hackerone.com/reports/922470 https://nextcloud.com/security/advisory/?id=NC-SA-2020-033 • CWE-307: Improper Restriction of Excessive Authentication Attempts CWE-840: Business Logic Errors •

CVSS: 5.3EPSS: 0%CPEs: 17EXPL: 1

In PHP versions 7.2.x below 7.2.34, 7.3.x below 7.3.23 and 7.4.x below 7.4.11, when PHP is processing incoming HTTP cookie values, the cookie names are url-decoded. This may lead to cookies with prefixes like __Host confused with cookies that decode to such prefix, thus leading to an attacker being able to forge cookie which is supposed to be secure. See also CVE-2020-8184 for more information. En PHP versiones 7.2.x por debajo de 7.2.34, versiones 7.3.x por debajo de 7.3.23 y versiones 7.4.x por debajo de 7.4.11, cuando PHP procesa valores de cookies HTTP entrantes, los nombres de las cookies se decodifican de la URL. Esto puede conllevar a que las cookies con prefijos como __Host se confundan con las cookies que decodifican dicho prefijo, lo que conlleva a que un atacante pueda falsificar una cookie que se supone que es segura. • http://cve.circl.lu/cve/CVE-2020-8184 http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00045.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00067.html https://bugs.php.net/bug.php?id=79699 https://hackerone.com/reports/895727 https://lists.debian.org/debian-lts-announce/2020/10/msg00008.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7EVDN7D3IB4EAI4D3ZOM2OJKQ5SD7K4E https://lists.fedoraproject.org/archives/list/ • CWE-20: Improper Input Validation CWE-565: Reliance on Cookies without Validation and Integrity Checking •