gsd-2018-6556
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
lxc-user-nic when asked to delete a network interface will unconditionally open a user provided path. This code path may be used by an unprivileged user to check for the existence of a path which they wouldn't otherwise be able to reach. It may also be used to trigger side effects by causing a (read-only) open of special kernel files (ptmx, proc, sys). Affected releases are LXC: 2.0 versions above and including 2.0.9; 3.0 versions above and including 3.0.0, prior to 3.0.2.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2018-6556", "description": "lxc-user-nic when asked to delete a network interface will unconditionally open a user provided path. This code path may be used by an unprivileged user to check for the existence of a path which they wouldn\u0027t otherwise be able to reach. It may also be used to trigger side effects by causing a (read-only) open of special kernel files (ptmx, proc, sys). Affected releases are LXC: 2.0 versions above and including 2.0.9; 3.0 versions above and including 3.0.0, prior to 3.0.2.", "id": "GSD-2018-6556", "references": [ "https://www.suse.com/security/cve/CVE-2018-6556.html", "https://ubuntu.com/security/CVE-2018-6556", "https://security.archlinux.org/CVE-2018-6556" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2018-6556" ], "details": "lxc-user-nic when asked to delete a network interface will unconditionally open a user provided path. This code path may be used by an unprivileged user to check for the existence of a path which they wouldn\u0027t otherwise be able to reach. It may also be used to trigger side effects by causing a (read-only) open of special kernel files (ptmx, proc, sys). Affected releases are LXC: 2.0 versions above and including 2.0.9; 3.0 versions above and including 3.0.0, prior to 3.0.2.", "id": "GSD-2018-6556", "modified": "2023-12-13T01:22:35.787394Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "security@ubuntu.com", "DATE_PUBLIC": "2018-08-06T16:00:00.000Z", "ID": "CVE-2018-6556", "STATE": "PUBLIC", "TITLE": "The lxc-user-nic component of LXC allows unprivileged users to open arbitrary files" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "LXC", "version": { "version_data": [ { "affected": "\u003e=", "version_name": "2.0", "version_value": "2.0.9" }, { "affected": "\u003e=", "version_name": "3.0", "version_value": "3.0.0" }, { "affected": "\u003c", "version_name": "3.0", "version_value": "3.0.2" } ] } } ] }, "vendor_name": "n/a" } ] } }, "credit": [ { "lang": "eng", "value": "Matthias Gerstner from SUSE" } ], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "lxc-user-nic when asked to delete a network interface will unconditionally open a user provided path. This code path may be used by an unprivileged user to check for the existence of a path which they wouldn\u0027t otherwise be able to reach. It may also be used to trigger side effects by causing a (read-only) open of special kernel files (ptmx, proc, sys). Affected releases are LXC: 2.0 versions above and including 2.0.9; 3.0 versions above and including 3.0.0, prior to 3.0.2." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "Incorrect access control" } ] } ] }, "references": { "reference_data": [ { "name": "USN-3730-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/usn/usn-3730-1" }, { "name": "https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591", "refsource": "CONFIRM", "url": "https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591" }, { "name": "GLSA-201808-02", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/201808-02" }, { "name": "https://bugzilla.suse.com/show_bug.cgi?id=988348", "refsource": "CONFIRM", "url": "https://bugzilla.suse.com/show_bug.cgi?id=988348" }, { "name": "openSUSE-SU-2019:1227", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00074.html" }, { "name": "openSUSE-SU-2019:1230", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00076.html" }, { "name": "openSUSE-SU-2019:1275", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00091.html" }, { "name": "openSUSE-SU-2019:1481", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00073.html" } ] }, "source": { "advisory": "USN-3730-1", "defect": [ "1783591" ], "discovery": "EXTERNAL" } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "3.0.2", "versionStartIncluding": "3.0.0", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndIncluding": "2.0.9", "versionStartIncluding": "2.0.0", "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:suse:suse_linux_enterprise_server:11:sp3:*:*:ltss:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:suse:suse_linux_enterprise_server:11:sp4:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:suse:caas_platform:2.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:suse:openstack_cloud:6:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:suse:caas_platform:1.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "security@ubuntu.com", "ID": "CVE-2018-6556" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "lxc-user-nic when asked to delete a network interface will unconditionally open a user provided path. This code path may be used by an unprivileged user to check for the existence of a path which they wouldn\u0027t otherwise be able to reach. It may also be used to trigger side effects by causing a (read-only) open of special kernel files (ptmx, proc, sys). Affected releases are LXC: 2.0 versions above and including 2.0.9; 3.0 versions above and including 3.0.0, prior to 3.0.2." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-417" } ] } ] }, "references": { "reference_data": [ { "name": "USN-3730-1", "refsource": "UBUNTU", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/usn/usn-3730-1" }, { "name": "https://bugzilla.suse.com/show_bug.cgi?id=988348", "refsource": "CONFIRM", "tags": [ "Issue Tracking", "Patch" ], "url": "https://bugzilla.suse.com/show_bug.cgi?id=988348" }, { "name": "https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591", "refsource": "CONFIRM", "tags": [ "Issue Tracking", "Third Party Advisory" ], "url": "https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591" }, { "name": "GLSA-201808-02", "refsource": "GENTOO", "tags": [ "Third Party Advisory" ], "url": "https://security.gentoo.org/glsa/201808-02" }, { "name": "openSUSE-SU-2019:1227", "refsource": "SUSE", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00074.html" }, { "name": "openSUSE-SU-2019:1230", "refsource": "SUSE", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00076.html" }, { "name": "openSUSE-SU-2019:1275", "refsource": "SUSE", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00091.html" }, { "name": "openSUSE-SU-2019:1481", "refsource": "SUSE", "tags": [], "url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00073.html" } ] } }, "impact": { "baseMetricV2": { "acInsufInfo": false, "cvssV2": { "accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0" }, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "severity": "LOW", "userInteractionRequired": false }, "baseMetricV3": { "cvssV3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 3.3, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.0" }, "exploitabilityScore": 1.8, "impactScore": 1.4 } }, "lastModifiedDate": "2019-05-31T21:29Z", "publishedDate": "2018-08-10T15:29Z" } } }
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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.