{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2018-12-26T00:00:00", "descriptions": [{"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)."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-11-28T14:06:09", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug"}, {"tags": ["x_refsource_MISC"], "url": "http://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42ccd1e2377945fd0414eca1a49294bff454"}, {"name": "[debian-lts-announce] 20181231 [SECURITY] [DLA 1623-1] tar security update", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00023.html"}, {"tags": ["x_refsource_MISC"], "url": "https://news.ycombinator.com/item?id=18745431"}, {"name": "106354", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/106354"}, {"name": "GLSA-201903-05", "tags": ["vendor-advisory", "x_refsource_GENTOO"], "url": "https://security.gentoo.org/glsa/201903-05"}, {"tags": ["x_refsource_MISC"], "url": "http://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html"}, {"tags": ["x_refsource_MISC"], "url": "https://twitter.com/thatcks/status/1076166645708668928"}, {"name": "openSUSE-SU-2019:1237", "tags": ["vendor-advisory", "x_refsource_SUSE"], "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html"}, {"name": "[debian-lts-announce] 20211128 [SECURITY] [DLA 2830-1] tar security update", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00025.html"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2018-20482", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "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": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug", "refsource": "MISC", "url": "https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug"}, {"name": "http://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42ccd1e2377945fd0414eca1a49294bff454", "refsource": "MISC", "url": "http://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42ccd1e2377945fd0414eca1a49294bff454"}, {"name": "[debian-lts-announce] 20181231 [SECURITY] [DLA 1623-1] tar security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00023.html"}, {"name": "https://news.ycombinator.com/item?id=18745431", "refsource": "MISC", "url": "https://news.ycombinator.com/item?id=18745431"}, {"name": "106354", "refsource": "BID", "url": "http://www.securityfocus.com/bid/106354"}, {"name": "GLSA-201903-05", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/201903-05"}, {"name": "http://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html", "refsource": "MISC", "url": "http://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html"}, {"name": "https://twitter.com/thatcks/status/1076166645708668928", "refsource": "MISC", "url": "https://twitter.com/thatcks/status/1076166645708668928"}, {"name": "openSUSE-SU-2019:1237", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html"}, {"name": "[debian-lts-announce] 20211128 [SECURITY] [DLA 2830-1] tar security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00025.html"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T12:05:16.165Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42ccd1e2377945fd0414eca1a49294bff454"}, {"name": "[debian-lts-announce] 20181231 [SECURITY] [DLA 1623-1] tar security update", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00023.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://news.ycombinator.com/item?id=18745431"}, {"name": "106354", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/106354"}, {"name": "GLSA-201903-05", "tags": ["vendor-advisory", "x_refsource_GENTOO", "x_transferred"], "url": "https://security.gentoo.org/glsa/201903-05"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://twitter.com/thatcks/status/1076166645708668928"}, {"name": "openSUSE-SU-2019:1237", "tags": ["vendor-advisory", "x_refsource_SUSE", "x_transferred"], "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html"}, {"name": "[debian-lts-announce] 20211128 [SECURITY] [DLA 2830-1] tar security update", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00025.html"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2018-20482", "datePublished": "2018-12-26T18:00:00", "dateReserved": "2018-12-26T00:00:00", "dateUpdated": "2024-08-05T12:05:16.165Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gnu:tar:*:*:*:*:*:*:*:*", "matchCriteriaId": "568B865E-7BA0-45A1-A944-575D49BC289E", "versionEndIncluding": "1.30", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*", "matchCriteriaId": "F1E78106-58E6-4D59-990F-75DA575BFAD9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"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)."}, {"lang": "es", "value": "GNU Tar, hasta la versi\u00f3n 1.30, cuando se emplea --sparse, gestiona de manera incorrecta el encogimiento de archivos durante el acceso de lectura, lo que permite que usuarios locales provoquen una denegaci\u00f3n de servicio (bucle infinito de lectura en sparse_dump_region en sparse.c) modificando un archivo que deber\u00eda ser archivado por el proceso de un usuario diferente (por ejemplo, un backup del sistema que se ejecuta como root)."}], "id": "CVE-2018-20482", "lastModified": "2021-11-30T19:52:03.843", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 1.9, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-12-26T18:29:00.373", "references": [{"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "http://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42ccd1e2377945fd0414eca1a49294bff454"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/106354"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00023.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00025.html"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://news.ycombinator.com/item?id=18745431"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/201903-05"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://twitter.com/thatcks/status/1076166645708668928"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-835"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "tar: Infinite read loop in sparse_dump_region function in sparse.c", "id": "1662346", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1662346"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-835", "details": ["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)."], "name": "CVE-2018-20482", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "tar", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "tar", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Will not fix", "package_name": "tar", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "tar", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2018-12-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2018-20482\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-20482"], "statement": "Red Hat Enterprise Linux 8 is not affected by this vulnerability because ships already patched version of tar.", "threat_severity": "Low"}