fkie_cve-2018-14619
Vulnerability from fkie_nvd
Published
2018-08-30 12:29
Modified
2024-11-21 03:49
Severity ?
Summary
A flaw was found in the crypto subsystem of the Linux kernel before version kernel-4.15-rc4. The "null skcipher" was being dropped when each af_alg_ctx was freed instead of when the aead_tfm was freed. This can cause the null skcipher to be freed while it is still in use leading to a local user being able to crash the system or possibly escalate privileges.
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
linux | linux_kernel | * | |
linux | linux_kernel | 4.15 | |
linux | linux_kernel | 4.15 | |
linux | linux_kernel | 4.15 |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4D8FF6C2-F49F-483D-A9E2-2DAE73483C7C", "versionEndExcluding": "4.14.8", "versionStartIncluding": "4.14", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:4.15:rc1:*:*:*:*:*:*", "matchCriteriaId": "B6EF6556-06A6-4700-B61F-533167096BEF", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:4.15:rc2:*:*:*:*:*:*", "matchCriteriaId": "69A04496-EA26-42E0-A553-413BF2A78AD7", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:4.15:rc3:*:*:*:*:*:*", "matchCriteriaId": "14E8986E-B317-40EA-B0B5-5D2922D2AF5B", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "A flaw was found in the crypto subsystem of the Linux kernel before version kernel-4.15-rc4. The \"null skcipher\" was being dropped when each af_alg_ctx was freed instead of when the aead_tfm was freed. This can cause the null skcipher to be freed while it is still in use leading to a local user being able to crash the system or possibly escalate privileges." }, { "lang": "es", "value": "Se ha encontrado un error en el subsistema crypto del kernel de Linux en versiones anteriores a kernel-4.15-rc4. Se dej\u00f3 \"null skcipher\" cuando se liber\u00f3 cada af_alg_ctx en lugar de cuando se liber\u00f3 aead_tfm. Esto puede provocar la liberaci\u00f3n del skcipher null mientras sigue en uso, lo que conduce a que un usuario local sea capaz de provocar el cierre inesperado del sistema o un posible escalado de privilegios." } ], "id": "CVE-2018-14619", "lastModified": "2024-11-21T03:49:26.203", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": { "accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0" }, "exploitabilityScore": 3.9, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV30": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0" }, "exploitabilityScore": 2.5, "impactScore": 3.6, "source": "secalert@redhat.com", "type": "Secondary" } ], "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2018-08-30T12:29:01.407", "references": [ { "source": "secalert@redhat.com", "tags": [ "Third Party Advisory", "VDB Entry" ], "url": "http://www.securityfocus.com/bid/105200" }, { "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ], "url": "https://access.redhat.com/errata/RHSA-2018:2948" }, { "source": "secalert@redhat.com", "tags": [ "Issue Tracking", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14619" }, { "source": "secalert@redhat.com", "tags": [ "Patch", "Vendor Advisory" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b32a7dc8aef1882fbf983eb354837488cc9d54dc" }, { "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ], "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0013" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory", "VDB Entry" ], "url": "http://www.securityfocus.com/bid/105200" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://access.redhat.com/errata/RHSA-2018:2948" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14619" }, { "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=b32a7dc8aef1882fbf983eb354837488cc9d54dc" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0013" } ], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-416" } ], "source": "secalert@redhat.com", "type": "Secondary" }, { "description": [ { "lang": "en", "value": "CWE-20" } ], "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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