CVE-2018-20024

{"containers": {"cna": {"affected": [{"product": "LibVNC", "vendor": "n/a", "versions": [{"status": "affected", "version": "commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7"}]}], "datePublic": "2018-12-19T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS."}], "problemTypes": [{"descriptions": [{"description": "Denial of Service", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-10-23T12:06:27.000Z", "orgId": "e45d732a-8f6b-4b6b-be76-7420f6a2b988", "shortName": "Kaspersky"}, "references": [{"name": "DSA-4383", "tags": ["vendor-advisory", "x_refsource_DEBIAN"], "url": "https://www.debian.org/security/2019/dsa-4383"}, {"name": "[debian-lts-announce] 20181227 [SECURITY] [DLA 1617-1] libvncserver security update", "tags": ["mailing-list", "x_refsource_MLIST"], "url": 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"https://security.gentoo.org/glsa/202006-06"}, {"name": "USN-4547-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "https://usn.ubuntu.com/4547-1/"}, {"name": "USN-4547-2", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "https://usn.ubuntu.com/4547-2/"}, {"name": "USN-4587-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "https://usn.ubuntu.com/4587-1/"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "vulnerability@kaspersky.com", "ID": "CVE-2018-20024", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "LibVNC", "version": {"version_data": [{"version_value": "commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that 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"https://www.debian.org/security/2019/dsa-4383"}, {"name": "[debian-lts-announce] 20181227 [SECURITY] [DLA 1617-1] libvncserver security update", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-034-libvnc-null-pointer-dereference/"}, {"name": "USN-3877-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "https://usn.ubuntu.com/3877-1/"}, {"name": "GLSA-201908-05", "tags": ["vendor-advisory", "x_refsource_GENTOO", "x_transferred"], "url": "https://security.gentoo.org/glsa/201908-05"}, {"name": "[debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html"}, {"name": "[debian-lts-announce] 20191129 [SECURITY] [DLA 2016-1] ssvnc security update", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2019/11/msg00033.html"}, {"name": "GLSA-202006-06", "tags": ["vendor-advisory", "x_refsource_GENTOO", "x_transferred"], "url": "https://security.gentoo.org/glsa/202006-06"}, {"name": "USN-4547-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "https://usn.ubuntu.com/4547-1/"}, {"name": "USN-4547-2", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "https://usn.ubuntu.com/4547-2/"}, {"name": "USN-4587-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "https://usn.ubuntu.com/4587-1/"}]}]}, "cveMetadata": {"assignerOrgId": "e45d732a-8f6b-4b6b-be76-7420f6a2b988", "assignerShortName": "Kaspersky", "cveId": "CVE-2018-20024", "datePublished": "2018-12-19T16:00:00.000Z", "dateReserved": "2018-12-10T00:00:00.000Z", "dateUpdated": "2024-08-05T11:51:18.329Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "LibVNC", "vendor": "n/a", "versions": [{"status": "affected", "version": "commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7"}]}], "source": "vulnerability@kaspersky.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:libvnc_project:libvncserver:*:*:*:*:*:*:*:*", "matchCriteriaId": "DEF1BF44-78B8-44E3-9A5A-29AB8111322B", "versionEndExcluding": "0.9.12", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*", "matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*", "matchCriteriaId": "07C312A0-CD2C-4B9C-B064-6409B25C278F", "vulnerable": true}, {"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"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS."}, {"lang": "es", "value": "LibVNC antes del commit con ID 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contiene una desreferencia de puntero NULL en el c\u00f3digo del cliente VNC que puede resultar en una denegaci\u00f3n de servicio (DoS)."}], "id": "CVE-2018-20024", "lastModified": "2026-06-17T01:52:11.570", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-12-19T16:29:00.560", "references": [{"source": "vulnerability@kaspersky.com", "tags": ["Third Party Advisory"], "url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-034-libvnc-null-pointer-dereference/"}, {"source": "vulnerability@kaspersky.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html"}, {"source": "vulnerability@kaspersky.com", "url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html"}, {"source": "vulnerability@kaspersky.com", "url": "https://lists.debian.org/debian-lts-announce/2019/11/msg00033.html"}, {"source": "vulnerability@kaspersky.com", "url": "https://security.gentoo.org/glsa/201908-05"}, {"source": "vulnerability@kaspersky.com", "url": "https://security.gentoo.org/glsa/202006-06"}, {"source": "vulnerability@kaspersky.com", "tags": ["Third Party Advisory"], "url": "https://usn.ubuntu.com/3877-1/"}, {"source": "vulnerability@kaspersky.com", "url": "https://usn.ubuntu.com/4547-1/"}, {"source": "vulnerability@kaspersky.com", "url": "https://usn.ubuntu.com/4547-2/"}, {"source": "vulnerability@kaspersky.com", "url": "https://usn.ubuntu.com/4587-1/"}, {"source": "vulnerability@kaspersky.com", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2019/dsa-4383"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-034-libvnc-null-pointer-dereference/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2019/11/msg00033.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.gentoo.org/glsa/201908-05"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.gentoo.org/glsa/202006-06"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://usn.ubuntu.com/3877-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/4547-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/4547-2/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/4587-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2019/dsa-4383"}], "sourceIdentifier": "vulnerability@kaspersky.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "libvncserver: NULL pointer dereference in VNC client code allows for denial of service", "id": "1661132", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1661132"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS."], "name": "CVE-2018-20024", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "libvncserver", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "libvncserver", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "libvncserver", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2018-12-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2018-20024\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-20024\nhttps://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-034-libvnc-null-pointer-dereference/"], "threat_severity": "Low"}

{}