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{"bugzilla": {"description": "xen: xenoprof issue allows guest OS users with active profiling to obtain sensitive information about other guests (XSA-313)", "id": "1823913", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1823913"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-862", "details": ["An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users (with active profiling) to obtain sensitive information about other guests, cause a denial of service, or possibly gain privileges. For guests for which \"active\" profiling was enabled by the administrator, the xenoprof code uses the standard Xen shared ring structure. Unfortunately, this code did not treat the guest as a potential adversary: it trusts the guest not to modify buffer size information or modify head / tail pointers in unexpected ways. This can crash the host (DoS). Privilege escalation cannot be ruled out.", "A flaw was found in Xenoprof in the Xen virtual machine through version 4.13.x, where it allows guest OS users, with active profiling, to obtain sensitive information about other guests, cause a denial of service, or possibly gain privileges. For guests with \u201cactive\u201d profiling enabled by the administrator, the Xenoprof code uses the standard Xen shared ring structure. With this flaw, the code does not treat the guest as a potential attacker, and it trusts the guest not to modify the buffer size information and not modify the head/tail pointers in unexpected ways, which can lead to a denial of service or escalation of privileges."], "name": "CVE-2020-11741", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "package_name": "kernel-xen", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2020-04-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-11741\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-11741"], "threat_severity": "Important"}