ghsa-835p-c6x8-xh5f
Vulnerability from github
Published
2024-01-02 12:30
Modified
2024-05-22 18:30
Severity ?
Details
A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtio_net_flush_tx function if guest features VIRTIO_NET_F_HASH_REPORT, VIRTIO_F_VERSION_1 and VIRTIO_NET_F_MRG_RXBUF are enabled. This could allow a malicious user to overwrite local variables allocated on the stack. Specifically, the out_sg
variable could be used to read a part of process memory and send it to the wire, causing an information leak.
{ "affected": [], "aliases": [ "CVE-2023-6693" ], "database_specific": { "cwe_ids": [ "CWE-121", "CWE-787" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2024-01-02T10:15:08Z", "severity": "MODERATE" }, "details": "A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtio_net_flush_tx function if guest features VIRTIO_NET_F_HASH_REPORT, VIRTIO_F_VERSION_1 and VIRTIO_NET_F_MRG_RXBUF are enabled. This could allow a malicious user to overwrite local variables allocated on the stack. Specifically, the `out_sg` variable could be used to read a part of process memory and send it to the wire, causing an information leak.", "id": "GHSA-835p-c6x8-xh5f", "modified": "2024-05-22T18:30:38Z", "published": "2024-01-02T12:30:18Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6693" }, { "type": "WEB", "url": "https://access.redhat.com/errata/RHSA-2024:2962" }, { "type": "WEB", "url": "https://access.redhat.com/security/cve/CVE-2023-6693" }, { "type": "WEB", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2254580" }, { "type": "WEB", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OYGUN5HVOXESW7MSNM44E4AE2VNXQB6Y" }, { "type": "WEB", "url": "https://security.netapp.com/advisory/ntap-20240208-0004" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L", "type": "CVSS_V3" } ] }
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Sightings
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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.