CVE-2021-20255
Vulnerability from cvelistv5
Published
2021-03-09 19:14
Modified
2024-08-03 17:37
Severity ?
EPSS score ?
Summary
A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
References
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This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.", }, ], problemTypes: [ { descriptions: [ { cweId: "CWE-835", description: "CWE-835", lang: "en", type: "CWE", }, ], }, ], providerMetadata: { dateUpdated: "2021-05-07T04:06:34", orgId: "53f830b8-0a3f-465b-8143-3b8a9948e749", shortName: "redhat", }, references: [ { tags: [ "x_refsource_MISC", ], url: "https://bugzilla.redhat.com/show_bug.cgi?id=1930646", }, { tags: [ "x_refsource_MISC", ], url: "https://www.openwall.com/lists/oss-security/2021/02/25/1", }, { tags: [ "x_refsource_MISC", ], url: "https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Feepro100_stackoverflow1", }, { name: "[debian-lts-announce] 20210410 [SECURITY] [DLA 2623-1] qemu security update", tags: [ "mailing-list", "x_refsource_MLIST", ], url: "https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html", }, { tags: [ "x_refsource_CONFIRM", ], url: "https://security.netapp.com/advisory/ntap-20210507-0003/", }, ], }, }, cveMetadata: { assignerOrgId: "53f830b8-0a3f-465b-8143-3b8a9948e749", assignerShortName: "redhat", cveId: "CVE-2021-20255", datePublished: "2021-03-09T19:14:05", dateReserved: "2020-12-17T00:00:00", dateUpdated: "2024-08-03T17:37:23.158Z", state: "PUBLISHED", }, dataType: "CVE_RECORD", dataVersion: "5.1", "vulnerability-lookup:meta": { nvd: "{\"cve\":{\"id\":\"CVE-2021-20255\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2021-03-09T20:15:13.133\",\"lastModified\":\"2024-11-21T05:46:13.340\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. 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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.
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- 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.