fkie_cve-2021-20265
Vulnerability from fkie_nvd
Published
2021-03-10 16:15
Modified
2024-11-21 05:46
Severity ?
Summary
A flaw was found in the way memory resources were freed in the unix_stream_recvmsg function in the Linux kernel when a signal was pending. This flaw allows an unprivileged local user to crash the system by exhausting available memory. The highest threat from this vulnerability is to system availability.
References
▶ | URL | Tags | |
---|---|---|---|
secalert@redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=1908827 | Issue Tracking, Patch, Third Party Advisory | |
secalert@redhat.com | https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fa0dc04df259ba2df3ce1920e9690c7842f8fa4b | Patch, Vendor Advisory | |
secalert@redhat.com | https://www.oracle.com/security-alerts/cpuoct2021.html | Patch, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.redhat.com/show_bug.cgi?id=1908827 | Issue Tracking, Patch, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fa0dc04df259ba2df3ce1920e9690c7842f8fa4b | Patch, Vendor Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://www.oracle.com/security-alerts/cpuoct2021.html | Patch, Third Party Advisory |
Impacted products
Vendor | Product | Version | |
---|---|---|---|
linux | linux_kernel | - | |
oracle | tekelec_platform_distribution | * |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*", "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:oracle:tekelec_platform_distribution:*:*:*:*:*:*:*:*", "matchCriteriaId": "26F05F85-7458-4C8F-B93F-93C92E506A40", "versionEndIncluding": "7.7.1", "versionStartIncluding": "7.4.0", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "A flaw was found in the way memory resources were freed in the unix_stream_recvmsg function in the Linux kernel when a signal was pending. This flaw allows an unprivileged local user to crash the system by exhausting available memory. The highest threat from this vulnerability is to system availability." }, { "lang": "es", "value": "Se encontr\u00f3 un fallo en la manera en que son liberados los recursos de memoria en la funci\u00f3n unix_stream_recvmsg en el kernel de Linux cuando hab\u00eda una se\u00f1al pendiente.\u0026#xa0;Este fallo permite a un usuario local sin privilegios bloquear el sistema agotando la memoria disponible.\u0026#xa0;La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema" } ], "id": "CVE-2021-20265", "lastModified": "2024-11-21T05:46:14.457", "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": "2021-03-10T16:15:16.610", "references": [ { "source": "secalert@redhat.com", "tags": [ "Issue Tracking", "Patch", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1908827" }, { "source": "secalert@redhat.com", "tags": [ "Patch", "Vendor Advisory" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fa0dc04df259ba2df3ce1920e9690c7842f8fa4b" }, { "source": "secalert@redhat.com", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://www.oracle.com/security-alerts/cpuoct2021.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking", "Patch", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1908827" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Vendor Advisory" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fa0dc04df259ba2df3ce1920e9690c7842f8fa4b" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://www.oracle.com/security-alerts/cpuoct2021.html" } ], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-400" } ], "source": "secalert@redhat.com", "type": "Secondary" }, { "description": [ { "lang": "en", "value": "CWE-401" } ], "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…