fkie_cve-2020-24385
Vulnerability from fkie_nvd
Published
2020-09-03 15:15
Modified
2024-11-21 05:14
Severity ?
Summary
In MidnightBSD before 1.2.6 and 1.3 before August 2020, and FreeBSD before 7, a NULL pointer dereference was found in the Linux emulation layer that allows attackers to crash the running kernel. During binary interaction, td->td_emuldata in sys/compat/linux/linux_emul.h is not getting initialized and returns NULL from em_find().
References
▶ | URL | Tags | |
---|---|---|---|
cve@mitre.org | http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:02.txt | Vendor Advisory | |
cve@mitre.org | https://www.midnightbsd.org/notes/ | Release Notes, Vendor Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:02.txt | Vendor Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://www.midnightbsd.org/notes/ | Release Notes, Vendor Advisory |
Impacted products
Vendor | Product | Version | |
---|---|---|---|
midnightbsd | midnightbsd | * | |
midnightbsd | midnightbsd | * | |
freebsd | freebsd | * |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:*", "matchCriteriaId": "049DCCEC-50B8-4E70-886F-E5FC3C0E0248", "versionEndExcluding": "1.2.6", "vulnerable": true }, { "criteria": "cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:*", "matchCriteriaId": "45E97C30-01B2-49EC-992D-6FED17D48BFB", "versionEndIncluding": "2020-08-19", "versionStartIncluding": "1.3", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*", "matchCriteriaId": "14AAC833-24C9-43C0-A81F-FA9F2CB1B1C9", "versionEndIncluding": "7.0", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "In MidnightBSD before 1.2.6 and 1.3 before August 2020, and FreeBSD before 7, a NULL pointer dereference was found in the Linux emulation layer that allows attackers to crash the running kernel. During binary interaction, td-\u003etd_emuldata in sys/compat/linux/linux_emul.h is not getting initialized and returns NULL from em_find()." }, { "lang": "es", "value": "En MidnightBSD versiones anteriores a 1.2.6 y versiones 1.3 anteriores a Agosto de 2020, y FreeBSD versiones anteriores a 7, se encontr\u00f3 una desreferencia del puntero NULL en la capa de emulaci\u00f3n de Linux que permite a atacantes bloquear el kernel en ejecuci\u00f3n.\u0026#xa0;Durante la interacci\u00f3n binaria, td-)td_emuldata en el archivo sys/compat/linux/linux_emul.h no se inicializa y devuelve NULL desde la funci\u00f3n em_find()" } ], "id": "CVE-2020-24385", "lastModified": "2024-11-21T05:14:42.980", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": { "accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 4.9, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0" }, "exploitabilityScore": 3.9, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV31": [ { "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": "2020-09-03T15:15:11.457", "references": [ { "source": "cve@mitre.org", "tags": [ "Vendor Advisory" ], "url": "http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:02.txt" }, { "source": "cve@mitre.org", "tags": [ "Release Notes", "Vendor Advisory" ], "url": "https://www.midnightbsd.org/notes/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Vendor Advisory" ], "url": "http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:02.txt" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Release Notes", "Vendor Advisory" ], "url": "https://www.midnightbsd.org/notes/" } ], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-476" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
Loading…
Loading…
Sightings
Author | Source | Type | Date |
---|
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.
Loading…
Loading…