CVE-2022-42320

Xenstore: Guests can get access to Xenstore nodes of deleted domains Access rights of Xenstore nodes are per domid. When a domain is gone, there might be Xenstore nodes left with access rights containing the domid of the removed domain. This is normally no problem, as those access right entries...

UBUNTU-CVE-2022-42317

Xenstore: guests can let run xenstored out of memory This 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...

UBUNTU-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...

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...

UBUNTU-CVE-2022-42311

Xenstore: guests can let run xenstored out of memory This 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...

Design/Logic Flaw

Xenstore: Guests can create arbitrary number of nodes via transactions This 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, t...

Design/Logic Flaw

Xenstore: guests can let run xenstored out of memory This 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...

CVE-2022-42325

Xenstore: Guests can create arbitrary number of nodes via transactions This 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, t...

CVE-2022-42322

Xenstore: Cooperating guests can create arbitrary numbers of nodes This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Since the fix of XSA-322 any Xenstore node owned by a removed domain will be modified to be owned by...

UBUNTU-CVE-2022-42315

Xenstore: guests can let run xenstored out of memory This 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...

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...

Xenstore: Cooperating guests can create arbitrary numbers of nodes

ISSUE DESCRIPTION Since the fix of XSA-322 any Xenstore node owned by a removed domain will be modified to be owned by Dom0. This will allow two malicious guests working together to create an arbitrary number of Xenstore nodes. This is possible by domain A letting domain B write into domain A's...

Xenstore: Guests can create orphaned Xenstore nodes

ISSUE DESCRIPTION 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...

Xenstore: Guests can create arbitrary number of nodes via transactions

ISSUE DESCRIPTION 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...

Xenstore: Guests can crash xenstored

ISSUE DESCRIPTION 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...

CVE-2022-42322

Xenstore: Cooperating guests can create arbitrary numbers of nodes This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Since the fix of XSA-322 any Xenstore node owned by a removed domain will be modified to be owned by...

PT-2022-7326 · Xen +1 · Xenstore +1

Name of the Vulnerable Software and Affected Versions: Xenstore affected versions not specified Description: The issue is related to the Xenstore component of the Xen hypervisor, where malicious guests can cause xenstored to allocate large amounts of memory. This can result in a Denial of Service...

PT-2022-7329 · Xenstore +1 · Xenstore +1

Name of the Vulnerable Software and Affected Versions: Xenstore affected versions not specified Description: The issue is related to the uncontrolled allocation of resources in Xenstore, which can lead to a Denial of Service DoS of xenstored. Malicious guests can cause xenstored to allocate large...

PT-2022-7327 · Xenstore +1 · Xenstore +1

Name of the Vulnerable Software and Affected Versions: Xenstore affected versions not specified Description: The issue is related to the uncontrolled allocation of resources in Xenstore, which can lead to a Denial of Service DoS of xenstored. Malicious guests can cause xenstored to allocate large...

CVE-2022-42326

Xenstore: Guests can create arbitrary number of nodes via transactions This 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, t...