fkie_cve-2021-42785
Vulnerability from fkie_nvd
Published
2021-11-23 22:15
Modified
2024-11-21 06:28
Severity ?
Summary
Buffer Overflow vulnerability in tvnviewer.exe of TightVNC Viewer allows a remote attacker to execute arbitrary instructions via a crafted FramebufferUpdate packet from a VNC server.
References
▼ | URL | Tags | |
---|---|---|---|
cve_disclosure@tech.gov.sg | https://www.tightvnc.com/whatsnew.php | Release Notes, Vendor Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://www.tightvnc.com/whatsnew.php | Release Notes, Vendor Advisory |
{ configurations: [ { nodes: [ { cpeMatch: [ { criteria: "cpe:2.3:a:tightvnc:tightvnc:*:*:*:*:*:*:*:*", matchCriteriaId: "E9227D38-8A36-4104-8703-77E0B93E1E43", versionEndIncluding: "2.8.59", vulnerable: true, }, ], negate: false, operator: "OR", }, ], }, ], cveTags: [], descriptions: [ { lang: "en", value: "Buffer Overflow vulnerability in tvnviewer.exe of TightVNC Viewer allows a remote attacker to execute arbitrary instructions via a crafted FramebufferUpdate packet from a VNC server.", }, { lang: "es", value: "Una vulnerabilidad de desbordamiento del búfer en el archivo tvnviewer.exe de TightVNC Viewer permite a un atacante remoto ejecutar instrucciones arbitrarias por medio de un paquete FramebufferUpdate diseñado desde un servidor VNC", }, ], id: "CVE-2021-42785", lastModified: "2024-11-21T06:28:10.337", metrics: { cvssMetricV2: [ { acInsufInfo: false, baseSeverity: "HIGH", cvssData: { accessComplexity: "LOW", accessVector: "NETWORK", authentication: "NONE", availabilityImpact: "PARTIAL", baseScore: 7.5, confidentialityImpact: "PARTIAL", integrityImpact: "PARTIAL", vectorString: "AV:N/AC:L/Au:N/C:P/I:P/A:P", version: "2.0", }, exploitabilityScore: 10, impactScore: 6.4, obtainAllPrivilege: false, obtainOtherPrivilege: false, obtainUserPrivilege: false, source: "nvd@nist.gov", type: "Primary", userInteractionRequired: false, }, ], cvssMetricV31: [ { cvssData: { attackComplexity: "LOW", attackVector: "NETWORK", availabilityImpact: "HIGH", baseScore: 9.8, baseSeverity: "CRITICAL", confidentialityImpact: "HIGH", integrityImpact: "HIGH", privilegesRequired: "NONE", scope: "UNCHANGED", userInteraction: "NONE", vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", version: "3.1", }, exploitabilityScore: 3.9, impactScore: 5.9, source: "nvd@nist.gov", type: "Primary", }, ], }, published: "2021-11-23T22:15:08.133", references: [ { source: "cve_disclosure@tech.gov.sg", tags: [ "Release Notes", "Vendor Advisory", ], url: "https://www.tightvnc.com/whatsnew.php", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Release Notes", "Vendor Advisory", ], url: "https://www.tightvnc.com/whatsnew.php", }, ], sourceIdentifier: "cve_disclosure@tech.gov.sg", vulnStatus: "Modified", weaknesses: [ { description: [ { lang: "en", value: "CWE-120", }, ], source: "cve_disclosure@tech.gov.sg", type: "Secondary", }, { description: [ { lang: "en", value: "CWE-120", }, ], source: "nvd@nist.gov", type: "Primary", }, ], }
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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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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.