gsd-2023-6546
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2023-6546", "id": "GSD-2023-6546" }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2023-6546" ], "details": "A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.", "id": "GSD-2023-6546", "modified": "2023-12-13T01:20:33.056191Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2023-6546", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Red Hat Enterprise Linux 8", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "0:4.18.0-513.24.1.rt7.326.el8_9", "versionType": "rpm" } ] } }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "0:4.18.0-513.24.1.el8_9", "versionType": "rpm" } ] } }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } } ] } }, { "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "0:4.18.0-372.93.1.el8_6", "versionType": "rpm" } ] } }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } } ] } }, { "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "0:5.14.0-70.93.2.el9_0", "versionType": "rpm" } ] } }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "0:5.14.0-70.93.1.rt21.165.el9_0", "versionType": "rpm" } ] } }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } } ] } }, { "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "0:5.14.0-284.55.1.el9_2", "versionType": "rpm" } ] } }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "0:5.14.0-284.55.1.rt14.340.el9_2", "versionType": "rpm" } ] } }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } } ] } }, { "product_name": "Red Hat Virtualization 4 for Red Hat Enterprise Linux 8", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "0:4.18.0-372.93.1.el8_6", "versionType": "rpm" } ] } } ] } }, { "product_name": "Red Hat Enterprise Linux 6", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } } ] } }, { "product_name": "Red Hat Enterprise Linux 7", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } } ] } }, { "product_name": "Red Hat Enterprise Linux 9", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected" } }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected" } } ] } } ] }, "vendor_name": "Red Hat" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system." } ] }, "impact": { "cvss": [ { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "cweId": "CWE-416", "lang": "eng", "value": "Use After Free" } ] } ] }, "references": { "reference_data": [ { "name": "https://access.redhat.com/errata/RHSA-2024:0930", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:0930" }, { "name": "https://access.redhat.com/errata/RHSA-2024:0937", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:0937" }, { "name": "https://access.redhat.com/errata/RHSA-2024:1018", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:1018" }, { "name": "https://access.redhat.com/errata/RHSA-2024:1019", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:1019" }, { "name": "https://access.redhat.com/errata/RHSA-2024:1055", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:1055" }, { "name": "https://access.redhat.com/errata/RHSA-2024:1250", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:1250" }, { "name": "https://access.redhat.com/errata/RHSA-2024:1253", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:1253" }, { "name": "https://access.redhat.com/errata/RHSA-2024:1306", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:1306" }, { "name": "https://access.redhat.com/errata/RHSA-2024:1607", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:1607" }, { "name": "https://access.redhat.com/errata/RHSA-2024:1612", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:1612" }, { "name": "https://access.redhat.com/errata/RHSA-2024:1614", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:1614" }, { "name": "https://access.redhat.com/security/cve/CVE-2023-6546", "refsource": "MISC", "url": "https://access.redhat.com/security/cve/CVE-2023-6546" }, { "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2255498", "refsource": "MISC", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255498" }, { "name": "https://github.com/torvalds/linux/commit/3c4f8333b582487a2d1e02171f1465531cde53e3", "refsource": "MISC", "url": "https://github.com/torvalds/linux/commit/3c4f8333b582487a2d1e02171f1465531cde53e3" }, { "name": "https://www.zerodayinitiative.com/advisories/ZDI-CAN-20527", "refsource": "MISC", "url": "https://www.zerodayinitiative.com/advisories/ZDI-CAN-20527" } ] }, "work_around": [ { "lang": "en", "value": "This flaw can be mitigated by preventing the affected `n_gsm` kernel module from being loaded. For instructions on how to blacklist a kernel module, please see https://access.redhat.com/solutions/41278." } ] }, "nvd.nist.gov": { "cve": { "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "98C491C7-598A-4D36-BA4F-3505A5727ED1", "versionEndExcluding": "6.5", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*", "matchCriteriaId": "0B3E6E4D-E24E-4630-B00C-8C9901C597B0", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:*", "matchCriteriaId": "E4A01A71-0F09-4DB2-A02F-7EFFBE27C98D", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:*", "matchCriteriaId": "F5608371-157A-4318-8A2E-4104C3467EA1", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:*", "matchCriteriaId": "2226A776-DF8C-49E0-A030-0A7853BB018A", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc5:*:*:*:*:*:*", "matchCriteriaId": "6F15C659-DF06-455A-9765-0E6DE920F29A", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc6:*:*:*:*:*:*", "matchCriteriaId": "5B1C14ED-ABC4-41D3-8D9C-D38C6A65B4DE", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*", "matchCriteriaId": "B8EDB836-4E6A-4B71-B9B2-AA3E03E0F646", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943", "vulnerable": true }, { "criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "descriptions": [ { "lang": "en", "value": "A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. 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Esto podr\u00eda permitir que un usuario local sin privilegios aumente sus privilegios en el sistema." } ], "id": "CVE-2023-6546", "lastModified": "2024-04-03T00:15:07.823", "metrics": { "cvssMetricV31": [ { "cvssData": { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary" }, { "cvssData": { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "secalert@redhat.com", "type": "Secondary" } ] }, "published": "2023-12-21T20:15:08.260", "references": [ { "source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:0930" }, { "source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:0937" }, { "source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:1018" }, { "source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:1019" }, { "source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:1055" }, { "source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:1250" }, { "source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:1253" }, { "source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:1306" }, { "source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:1607" }, { "source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:1612" }, { "source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:1614" }, { "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ], "url": "https://access.redhat.com/security/cve/CVE-2023-6546" }, { "source": "secalert@redhat.com", "tags": [ "Issue Tracking", "Patch", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255498" }, { "source": "secalert@redhat.com", "tags": [ "Patch" ], "url": "https://github.com/torvalds/linux/commit/3c4f8333b582487a2d1e02171f1465531cde53e3" }, { "source": "secalert@redhat.com", "url": "https://www.zerodayinitiative.com/advisories/ZDI-CAN-20527" } ], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-362" } ], "source": "nvd@nist.gov", "type": "Primary" }, { "description": [ { "lang": "en", "value": "CWE-416" } ], "source": "secalert@redhat.com", "type": "Secondary" } ] } } } }
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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.
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- 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.