CVE-2018-20482

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug", "name": "https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://twitter.com/thatcks/status/1076166645708668928", "name": "https://twitter.com/thatcks/status/1076166645708668928", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://news.ycombinator.com/item?id=18745431", "name": "https://news.ycombinator.com/item?id=18745431", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "http://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html", "name": "http://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00023.html", "name": "[debian-lts-announce] 20181231 [SECURITY] [DLA 1623-1] tar security update", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "http://www.securityfocus.com/bid/106354", "name": "106354", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "http://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42ccd1e2377945fd0414eca1a49294bff454", "name": "http://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42ccd1e2377945fd0414eca1a49294bff454", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://security.gentoo.org/glsa/201903-05", "name": "GLSA-201903-05", "tags": ["Third Party Advisory"], "refsource": "GENTOO"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html", "name": "openSUSE-SU-2019:1237", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "SUSE"}, {"url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00025.html", "name": "[debian-lts-announce] 20211128 [SECURITY] [DLA 2830-1] tar security update", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which allows local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by modifying a file that is supposed to be archived by a different user's process (e.g., a system backup running as root)."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-835"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2018-20482", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 1.9, "accessVector": "LOCAL", "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "severity": "LOW", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 3.4, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.0}}, "publishedDate": "2018-12-26T18:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:gnu:tar:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "1.30"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-11-30T19:52Z"}