fkie_cve-2020-11935
Vulnerability from fkie_nvd
Published
2023-04-07 02:15
Modified
2024-11-21 04:58
Severity ?
4.4 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
It was discovered that aufs improperly managed inode reference counts in the vfsub_dentry_open() method. A local attacker could use this vulnerability to cause a denial of service attack.
References
▶ | URL | Tags | |
---|---|---|---|
security@ubuntu.com | https://bugs.launchpad.net/bugs/1873074 | Issue Tracking, Vendor Advisory | |
security@ubuntu.com | https://ubuntu.com/security/CVE-2020-11935 | Vendor Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://bugs.launchpad.net/bugs/1873074 | Issue Tracking, Vendor Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://ubuntu.com/security/CVE-2020-11935 | Vendor Advisory |
Impacted products
Vendor | Product | Version | |
---|---|---|---|
canonical | ubuntu_linux | 14.04 | |
canonical | ubuntu_linux | 16.04 | |
canonical | ubuntu_linux | 18.04 | |
canonical | ubuntu_linux | 20.04 | |
debian | debian_linux | 10.0 |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*", "matchCriteriaId": "815D70A8-47D3-459C-A32C-9FEACA0659D1", "vulnerable": true }, { "criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*", "matchCriteriaId": "7A5301BF-1402-4BE0-A0F8-69FBE79BC6D6", "vulnerable": true }, { "criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D", "vulnerable": true }, { "criteria": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*", "matchCriteriaId": "902B8056-9E37-443B-8905-8AA93E2447FB", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "It was discovered that aufs improperly managed inode reference counts in the vfsub_dentry_open() method. A local attacker could use this vulnerability to cause a denial of service attack." } ], "id": "CVE-2020-11935", "lastModified": "2024-11-21T04:58:56.233", "metrics": { "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 0.8, "impactScore": 3.6, "source": "security@ubuntu.com", "type": "Secondary" }, { "cvssData": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2023-04-07T02:15:07.543", "references": [ { "source": "security@ubuntu.com", "tags": [ "Issue Tracking", "Vendor Advisory" ], "url": "https://bugs.launchpad.net/bugs/1873074" }, { "source": "security@ubuntu.com", "tags": [ "Vendor Advisory" ], "url": "https://ubuntu.com/security/CVE-2020-11935" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking", "Vendor Advisory" ], "url": "https://bugs.launchpad.net/bugs/1873074" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Vendor Advisory" ], "url": "https://ubuntu.com/security/CVE-2020-11935" } ], "sourceIdentifier": "security@ubuntu.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-911" } ], "source": "security@ubuntu.com", "type": "Secondary" }, { "description": [ { "lang": "en", "value": "NVD-CWE-Other" } ], "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.
- 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.
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