ghsa-h66w-323g-4q62
Vulnerability from github
Published
2022-08-26 00:03
Modified
2022-09-01 00:00
Severity ?
Details
A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.
{ "affected": [], "aliases": [ "CVE-2021-3929" ], "database_specific": { "cwe_ids": [ "CWE-416" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2022-08-25T20:15:00Z", "severity": "HIGH" }, "details": "A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.", "id": "GHSA-h66w-323g-4q62", "modified": "2022-09-01T00:00:21Z", "published": "2022-08-26T00:03:29Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3929" }, { "type": "WEB", "url": "https://access.redhat.com/security/cve/CVE-2021-3929" }, { "type": "WEB", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2020298" }, { "type": "WEB", "url": "https://gitlab.com/qemu-project/qemu/-/commit/736b01642d85be832385" }, { "type": "WEB", "url": "https://gitlab.com/qemu-project/qemu/-/issues/556" }, { "type": "WEB", "url": "https://gitlab.com/qemu-project/qemu/-/issues/782" }, { "type": "WEB", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XHNN7QJCEQH7AQG5AQP2GEFAQE6K635I" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "type": "CVSS_V3" } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- 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.