gsd-2023-3812
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2023-3812", "id": "GSD-2023-3812" }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2023-3812" ], "details": "An out-of-bounds memory access flaw was found in the Linux kernel\u2019s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system.", "id": "GSD-2023-3812", "modified": "2023-12-13T01:20:54.401563Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2023-3812", "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": "0:4.18.0-513.9.1.rt7.311.el8_9", "versionType": "rpm" } ] } }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "0:4.18.0-513.9.1.el8_9", "versionType": "rpm" } ] } }, { "version_value": "not down converted", 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This flaw allows a local user to crash or potentially escalate their privileges on the system." } ] }, "impact": { "cvss": [ { "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" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "cweId": "CWE-787", "lang": "eng", "value": "Out-of-bounds Write" } ] } ] }, "references": { "reference_data": [ { "name": "https://access.redhat.com/errata/RHSA-2023:6799", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2023:6799" }, { "name": "https://access.redhat.com/errata/RHSA-2023:6813", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2023:6813" }, { "name": "https://access.redhat.com/errata/RHSA-2023:7370", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2023:7370" }, { "name": "https://access.redhat.com/errata/RHSA-2023:7379", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2023:7379" }, { "name": "https://access.redhat.com/errata/RHSA-2023:7382", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2023:7382" }, { "name": "https://access.redhat.com/errata/RHSA-2023:7389", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2023:7389" }, { "name": "https://access.redhat.com/errata/RHSA-2023:7411", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2023:7411" }, { "name": "https://access.redhat.com/errata/RHSA-2023:7418", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2023:7418" }, { "name": "https://access.redhat.com/errata/RHSA-2023:7548", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2023:7548" }, { "name": "https://access.redhat.com/errata/RHSA-2023:7549", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2023:7549" }, { "name": "https://access.redhat.com/errata/RHSA-2023:7554", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2023:7554" }, { "name": "https://access.redhat.com/errata/RHSA-2024:0340", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:0340" }, { "name": "https://access.redhat.com/errata/RHSA-2024:0378", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:0378" }, { "name": "https://access.redhat.com/errata/RHSA-2024:0412", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:0412" }, { "name": "https://access.redhat.com/errata/RHSA-2024:0461", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:0461" }, { "name": "https://access.redhat.com/errata/RHSA-2024:0554", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:0554" }, { "name": "https://access.redhat.com/errata/RHSA-2024:0562", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:0562" }, { "name": "https://access.redhat.com/errata/RHSA-2024:0563", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:0563" }, { "name": "https://access.redhat.com/errata/RHSA-2024:0575", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:0575" }, { "name": "https://access.redhat.com/errata/RHSA-2024:0593", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:0593" }, { "name": "https://access.redhat.com/errata/RHSA-2024:1961", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:1961" }, { "name": "https://access.redhat.com/errata/RHSA-2024:2006", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:2006" }, { "name": "https://access.redhat.com/errata/RHSA-2024:2008", "refsource": "MISC", "url": "https://access.redhat.com/errata/RHSA-2024:2008" }, { "name": "https://access.redhat.com/security/cve/CVE-2023-3812", "refsource": "MISC", "url": "https://access.redhat.com/security/cve/CVE-2023-3812" }, { "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2224048", "refsource": "MISC", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2224048" }, { "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=363a5328f4b0", "refsource": "MISC", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=363a5328f4b0" } ] }, "work_around": [ { "lang": "en", "value": "To mitigate this issue, prevent the tun module from being loaded. 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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.