ghsa-9p8r-v33g-4939
Vulnerability from github
Published
2022-04-30 00:00
Modified
2022-05-11 00:02
Severity ?
Details
A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values cursor->header.width
and cursor->header.height
can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. A malicious privileged guest user could use this flaw to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.
{ "affected": [], "aliases": [ "CVE-2021-4207" ], "database_specific": { "cwe_ids": [ "CWE-362" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2022-04-29T17:15:00Z", "severity": "HIGH" }, "details": "A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values `cursor-\u003eheader.width` and `cursor-\u003eheader.height` can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. A malicious privileged guest user could use this flaw to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.", "id": "GHSA-9p8r-v33g-4939", "modified": "2022-05-11T00:02:03Z", "published": "2022-04-30T00:00:34Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4207" }, { "type": "WEB", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2036966" }, { "type": "WEB", "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html" }, { "type": "WEB", "url": "https://security.gentoo.org/glsa/202208-27" }, { "type": "WEB", "url": "https://starlabs.sg/advisories/21-4207" }, { "type": "WEB", "url": "https://www.debian.org/security/2022/dsa-5133" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:L/PR:L/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.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- 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.