ghsa-ggpp-fxg5-wp87
Vulnerability from github
Published
2022-05-24 19:03
Modified
2022-05-24 19:03
Severity ?
Details
A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
{ "affected": [], "aliases": [ "CVE-2021-20196" ], "database_specific": { "cwe_ids": [ "CWE-476" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2021-05-26T22:15:00Z", "severity": "MODERATE" }, "details": "A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.", "id": "GHSA-ggpp-fxg5-wp87", "modified": "2022-05-24T19:03:33Z", "published": "2022-05-24T19:03:33Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20196" }, { "type": "WEB", "url": "https://access.redhat.com/errata/RHSA-2022:0325" }, { "type": "WEB", "url": "https://access.redhat.com/errata/RHSA-2022:0397" }, { "type": "WEB", "url": "https://access.redhat.com/errata/RHSA-2022:1759" }, { "type": "WEB", "url": "https://access.redhat.com/security/cve/CVE-2021-20196" }, { "type": "WEB", "url": "https://bugs.launchpad.net/qemu/+bug/1912780" }, { "type": "WEB", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1919210" }, { "type": "WEB", "url": "https://lists.debian.org/debian-lts-announce/2022/04/msg00002.html" }, { "type": "WEB", "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html" }, { "type": "WEB", "url": "https://security.netapp.com/advisory/ntap-20210708-0004" }, { "type": "WEB", "url": "https://www.openwall.com/lists/oss-security/2021/01/28/1" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/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.