cvelist/2022/42xxx/CVE-2022-42325.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security@xen.org",
        "ID": "CVE-2022-42325",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "xen",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "?",
                                            "version_value": "consult Xen advisory XSA-421"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Xen"
                }
            ]
        }
    },
    "configuration": {
        "configuration_data": {
            "description": {
                "description_data": [
                    {
                        "lang": "eng",
                        "value": "All systems running Xen version 4.9 and newer are affected.\n\nOnly systems running the C variant of Xenstore (xenstored or xenstore-\nstubdom) are vulnerable.\n\nSystems using the Ocaml variant of Xenstore (oxenstored) are not vulnerable."
                    }
                ]
            }
        }
    },
    "credit": {
        "credit_data": {
            "description": {
                "description_data": [
                    {
                        "lang": "eng",
                        "value": "This issue was discovered by Julien Grall of Amazon."
                    }
                ]
            }
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "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."
            }
        ]
    },
    "impact": {
        "impact_data": {
            "description": {
                "description_data": [
                    {
                        "lang": "eng",
                        "value": "A malicious guest can cause memory shortage in xenstored, resulting in\na Denial of Service (DoS) of xenstored.\n\nThis will inhibit creating new guests and changing the configuration\nof already running guests."
                    }
                ]
            }
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "unknown"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "url": "https://xenbits.xenproject.org/xsa/advisory-421.txt",
                "refsource": "MISC",
                "name": "https://xenbits.xenproject.org/xsa/advisory-421.txt"
            },
            {
                "refsource": "CONFIRM",
                "name": "http://xenbits.xen.org/xsa/advisory-421.html",
                "url": "http://xenbits.xen.org/xsa/advisory-421.html"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20221101 Xen Security Advisory 421 v2 (CVE-2022-42325,CVE-2022-42326) - Xenstore: Guests can create arbitrary number of nodes via transactions",
                "url": "http://www.openwall.com/lists/oss-security/2022/11/01/11"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-5272",
                "url": "https://www.debian.org/security/2022/dsa-5272"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2022-07438e12df",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2022-99af00f60e",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2022-9f51d13fa3",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/"
            },
            {
                "refsource": "GENTOO",
                "name": "GLSA-202402-07",
                "url": "https://security.gentoo.org/glsa/202402-07"
            }
        ]
    },
    "workaround": {
        "workaround_data": {
            "description": {
                "description_data": [
                    {
                        "lang": "eng",
                        "value": "Running oxenstored instead of xenstored will avoid the vulnerability."
                    }
                ]
            }
        }
    }
}