ghsa-pg89-46xq-98vv
Vulnerability from github
Published
2022-08-24 00:00
Modified
2024-04-01 15:30
Severity ?
Details
A use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash.
{ "affected": [], "aliases": [ "CVE-2021-3975" ], "database_specific": { "cwe_ids": [ "CWE-416" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2022-08-23T20:15:00Z", "severity": "MODERATE" }, "details": "A use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash.", "id": "GHSA-pg89-46xq-98vv", "modified": "2024-04-01T15:30:28Z", "published": "2022-08-24T00:00:27Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3975" }, { "type": "WEB", "url": "https://github.com/libvirt/libvirt/commit/1ac703a7d0789e46833f4013a3876c2e3af18ec7" }, { "type": "WEB", "url": "https://access.redhat.com/security/cve/CVE-2021-3975" }, { "type": "WEB", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2024326" }, { "type": "WEB", "url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html" }, { "type": "WEB", "url": "https://security.netapp.com/advisory/ntap-20221201-0002" }, { "type": "WEB", "url": "https://ubuntu.com/security/CVE-2021-3975" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "type": "CVSS_V3" } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.