CVSS: 8.8EPSS: 0%CPEs: 5EXPL: 0CVE-2022-42309
https://notcve.org/view.php?id=CVE-2022-42309
Xenstore: Guests can crash xenstored Due to a bug in the fix of XSA-115 a malicious guest can cause xenstored to use a wrong pointer during node creation in an error path, resulting in a crash of xenstored or a memory corruption in xenstored causing further damage. Entering the error path can be controlled by the guest e.g. by exceeding the quota value of maximum nodes per domain. Xenstore: Los invitados pueden bloquear xenstored Debido a un error en la solución de XSA-115, un invitado malintencionado puede hacer que xenstored use un puntero incorrecto durante la creación del nodo en una ruta de error, lo que resulta en una falla de xenstored o una corrupción de la memoria en xenstored, lo que provoca más daño. El invitado puede controlar el ingreso de la ruta de error, por ejemplo, excediendo el valor de cuota de nodos máximos por dominio. • http://www.openwall.com/lists/oss-security/2022/11/01/4 http://xenbits.xen.org/xsa/advisory-414.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ https://security.gentoo.org/glsa/202402-07 https:// • CWE-763: Release of Invalid Pointer or Reference •
CVSS: 6.5EPSS: 0%CPEs: 5EXPL: 0CVE-2022-42315
https://notcve.org/view.php?id=CVE-2022-42315
Xenstore: guests can let run xenstored out of memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Malicious guests can cause xenstored to allocate vast amounts of memory, eventually resulting in a Denial of Service (DoS) of xenstored. There are multiple ways how guests can cause large memory allocations in xenstored: - - by issuing new requests to xenstored without reading the responses, causing the responses to be buffered in memory - - by causing large number of watch events to be generated via setting up multiple xenstore watches and then e.g. deleting many xenstore nodes below the watched path - - by creating as many nodes as allowed with the maximum allowed size and path length in as many transactions as possible - - by accessing many nodes inside a transaction Xenstore: los invitados pueden dejar ejecutar xenstored sin memoria. Este registro de información CNA se relaciona con múltiples CVE; el texto explica qué aspectos/vulnerabilidades corresponden a cada CVE.] Los invitados maliciosos pueden hacer que xenstored asigne grandes cantidades de memoria, lo que eventualmente resultará en una Denegación de Servicio (DoS) de xenstored. • http://xenbits.xen.org/xsa/advisory-326.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ https://www.debian.org/security/2022/dsa-5272 https://xenbits.xenproject.org/xsa/advisory-326.txt • CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2022-42310
https://notcve.org/view.php?id=CVE-2022-42310
Xenstore: Guests can create orphaned Xenstore nodes By creating multiple nodes inside a transaction resulting in an error, a malicious guest can create orphaned nodes in the Xenstore data base, as the cleanup after the error will not remove all nodes already created. When the transaction is committed after this situation, nodes without a valid parent can be made permanent in the data base. Xenstore: los invitados pueden crear nodos huérfanos de Xenstore al crear varios nodos dentro de una transacción que genera un error, un invitado malintencionado puede crear nodos huérfanos en la base de datos de Xenstore, ya que la limpieza después del error no eliminará todos los nodos ya creados. Cuando la transacción se confirma después de esta situación, los nodos sin un padre válido pueden hacerse permanentes en la base de datos. • http://www.openwall.com/lists/oss-security/2022/11/01/5 http://xenbits.xen.org/xsa/advisory-415.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ https://security.gentoo.org/glsa/202402-07 https:// • CWE-459: Incomplete Cleanup •
CVSS: 6.5EPSS: 0%CPEs: 5EXPL: 0CVE-2022-42316
https://notcve.org/view.php?id=CVE-2022-42316
Xenstore: guests can let run xenstored out of memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Malicious guests can cause xenstored to allocate vast amounts of memory, eventually resulting in a Denial of Service (DoS) of xenstored. There are multiple ways how guests can cause large memory allocations in xenstored: - - by issuing new requests to xenstored without reading the responses, causing the responses to be buffered in memory - - by causing large number of watch events to be generated via setting up multiple xenstore watches and then e.g. deleting many xenstore nodes below the watched path - - by creating as many nodes as allowed with the maximum allowed size and path length in as many transactions as possible - - by accessing many nodes inside a transaction Xenstore: los invitados pueden dejar ejecutar xenstored sin memoria. Este registro de información CNA se relaciona con múltiples CVE; el texto explica qué aspectos/vulnerabilidades corresponden a cada CVE.] Los invitados maliciosos pueden hacer que xenstored asigne grandes cantidades de memoria, lo que eventualmente resultará en una Denegación de Servicio (DoS) de xenstored. • http://xenbits.xen.org/xsa/advisory-326.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ https://www.debian.org/security/2022/dsa-5272 https://xenbits.xenproject.org/xsa/advisory-326.txt • CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2022-42326
https://notcve.org/view.php?id=CVE-2022-42326
Xenstore: Guests can create arbitrary number of nodes via transactions T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] In case a node has been created in a transaction and it is later deleted in the same transaction, the transaction will be terminated with an error. As this error is encountered only when handling the deleted node at transaction finalization, the transaction will have been performed partially and without updating the accounting information. This will enable a malicious guest to create arbitrary number of nodes. Xenstore: los invitados pueden crear una cantidad arbitraria de nodos mediante transacciones. • http://www.openwall.com/lists/oss-security/2022/11/01/11 http://xenbits.xen.org/xsa/advisory-421.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ https://security.gentoo.org/glsa/202402-07 https:/ • CWE-401: Missing Release of Memory after Effective Lifetime •