cve-2020-27784
Vulnerability from cvelistv5
Published
2022-09-01 17:56
Modified
2024-08-04 16:25
Severity ?
EPSS score ?
Summary
A vulnerability was found in the Linux kernel, where accessing a deallocated instance in printer_ioctl() printer_ioctl() tries to access of a printer_dev instance. However, use-after-free arises because it had been freed by gprinter_free().
References
▼ | URL | Tags | |
---|---|---|---|
secalert@redhat.com | https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e8d5f92b8d30bb4ade76494490c3c065e12411b1 | Mailing List, Patch, Vendor Advisory |
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-04T16:25:42.472Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e8d5f92b8d30bb4ade76494490c3c065e12411b1" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "kernel", "vendor": "n/a", "versions": [ { "status": "affected", "version": "unknown" } ] } ], "descriptions": [ { "lang": "en", "value": "A vulnerability was found in the Linux kernel, where accessing a deallocated instance in printer_ioctl() printer_ioctl() tries to access of a printer_dev instance. However, use-after-free arises because it had been freed by gprinter_free()." } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-201", "description": "CWE-201", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2022-09-01T17:56:31", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e8d5f92b8d30bb4ade76494490c3c065e12411b1" } ], "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2020-27784", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "kernel", "version": { "version_data": [ { "version_value": "unknown" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A vulnerability was found in the Linux kernel, where accessing a deallocated instance in printer_ioctl() printer_ioctl() tries to access of a printer_dev instance. However, use-after-free arises because it had been freed by gprinter_free()." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-201" } ] } ] }, "references": { "reference_data": [ { "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e8d5f92b8d30bb4ade76494490c3c065e12411b1", "refsource": "MISC", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e8d5f92b8d30bb4ade76494490c3c065e12411b1" } ] } } } }, "cveMetadata": { "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2020-27784", "datePublished": "2022-09-01T17:56:31", "dateReserved": "2020-10-27T00:00:00", "dateUpdated": "2024-08-04T16:25:42.472Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2020-27784\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2022-09-01T18:15:08.467\",\"lastModified\":\"2023-05-16T10:51:13.530\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability was found in the Linux kernel, where accessing a deallocated instance in printer_ioctl() printer_ioctl() tries to access of a printer_dev instance. However, use-after-free arises because it had been freed by gprinter_free().\"},{\"lang\":\"es\",\"value\":\"Se encontr\u00f3 una vulnerabilidad en el kernel de Linux, donde al acceder a una instancia desasignada en printer_ioctl() printer_ioctl() intenta acceder a una instancia de printer_dev. Sin embargo, es producido un uso de memoria previamente liberada porque hab\u00eda sido liberada por la funci\u00f3n gprinter_free()\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]},{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-201\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.1\",\"versionEndExcluding\":\"4.4.241\",\"matchCriteriaId\":\"6562CC02-020B-4BA1-8B62-116EE3BF3D8D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.5\",\"versionEndExcluding\":\"4.9.241\",\"matchCriteriaId\":\"72EFD2ED-12E4-4AFD-B5BB-CB3293750BFB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.19.154\",\"matchCriteriaId\":\"B952E0D7-4D70-4BBE-A15B-3435430BA7EE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.73\",\"matchCriteriaId\":\"647A7A2A-7AB0-4CD3-A6C8-4D3F52721743\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.8.17\",\"matchCriteriaId\":\"ECB8F088-C63B-40C8-B27B-86F62F62C3E8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.9.0\",\"versionEndExcluding\":\"5.9.2\",\"matchCriteriaId\":\"FA66D250-BE2A-4F96-B53E-CFBECEF46D83\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e8d5f92b8d30bb4ade76494490c3c065e12411b1\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Mailing List\",\"Patch\",\"Vendor Advisory\"]}]}}" } }
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.