CVE-2019-18397

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Examples include any GNOME or GTK+ based application that uses Pango for text layout, as this internally uses FriBidi for bidirectional text layout. 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{}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gnu:fribidi:*:*:*:*:*:*:*:*", "matchCriteriaId": "A44D7FB1-D10A-4EE2-A822-2143C8FDD733", "versionEndIncluding": "1.0.7", "versionStartIncluding": "1.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "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}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A buffer overflow in the fribidi_get_par_embedding_levels_ex() function in lib/fribidi-bidi.c of GNU FriBidi through 1.0.7 allows an attacker to cause a denial of service or possibly execute arbitrary code by delivering crafted text content to a user, when this content is then rendered by an application that uses FriBidi for text layout calculations. Examples include any GNOME or GTK+ based application that uses Pango for text layout, as this internally uses FriBidi for bidirectional text layout. For example, the attacker can construct a crafted text file to be opened in GEdit, or a crafted IRC message to be viewed in HexChat."}, {"lang": "es", "value": "Un desbordamiento de b\u00fafer en la funci\u00f3n fribidi_get_par_embedding_levels_ex() en la biblioteca lib/fribidi-bidi.c de GNU FriBidi versiones hasta 1.0.7, permite a un atacante causar una denegaci\u00f3n de servicio o posiblemente ejecutar c\u00f3digo arbitrario al entregar contenido de texto dise\u00f1ado a un usuario, cuando este contenido es entonces renderizado mediante una aplicaci\u00f3n que utiliza FriBidi para los c\u00e1lculos de dise\u00f1o de texto. Los ejemplos incluyen cualquier aplicaci\u00f3n basada en GNOME o GTK+ que use Pango para el dise\u00f1o de texto, ya que esto utiliza internamente FriBidi para el dise\u00f1o de texto bidireccional. Por ejemplo, el atacante puede construir un archivo de texto dise\u00f1ado para abrirse en GEdit, o un mensaje IRC dise\u00f1ado para ser visualizado en HexChat."}], "id": "CVE-2019-18397", "lastModified": "2026-06-17T02:24:58.563", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-11-13T14:15:10.287", "references": [{"source": "cve@mitre.org", "url": "https://access.redhat.com/errata/RHSA-2019:4326"}, {"source": "cve@mitre.org", "url": "https://access.redhat.com/errata/RHSA-2019:4361"}, {"source": "cve@mitre.org", "url": "https://access.redhat.com/errata/RHSA-2020:0291"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=944327"}, {"source": "cve@mitre.org", "tags": ["Patch"], "url": "https://github.com/fribidi/fribidi/commit/034c6e9a1d296286305f4cfd1e0072b879f52568"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TFS3N6KKXPI6ATDNEUFRSLX7R6BOBNIP/"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W5UJRTG32FDNI7T637Q6PZYL3UCRR5HR/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://marc.info/?l=oss-security&m=157322128105807&w=2"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://security-tracker.debian.org/tracker/CVE-2019-18397"}, {"source": "cve@mitre.org", "url": "https://security.gentoo.org/glsa/202003-41"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://access.redhat.com/errata/RHSA-2019:4326"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://access.redhat.com/errata/RHSA-2019:4361"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://access.redhat.com/errata/RHSA-2020:0291"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=944327"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/fribidi/fribidi/commit/034c6e9a1d296286305f4cfd1e0072b879f52568"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TFS3N6KKXPI6ATDNEUFRSLX7R6BOBNIP/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W5UJRTG32FDNI7T637Q6PZYL3UCRR5HR/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://marc.info/?l=oss-security&m=157322128105807&w=2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security-tracker.debian.org/tracker/CVE-2019-18397"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.gentoo.org/glsa/202003-41"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-120"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Alex Murray (Ubuntu Security Team) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2019:4326", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "fribidi-0:1.0.2-1.el7_7.1", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2019-12-19T00:00:00Z"}, {"advisory": "RHSA-2019:4361", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "fribidi-0:1.0.4-7.el8_1", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2019-12-23T00:00:00Z"}, {"advisory": "RHSA-2020:0291", "cpe": "cpe:/a:redhat:rhel_e4s:8.0", "package": "fribidi-0:1.0.4-6.el8_0.1", "product_name": "Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions", "release_date": "2020-01-30T00:00:00Z"}], "bugzilla": {"description": "fribidi: buffer overflow in fribidi_get_par_embedding_levels_ex() in lib/fribidi-bidi.c leading to denial of service and possible code execution", "id": "1768750", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1768750"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-121->CWE-400", "details": ["A buffer overflow in the fribidi_get_par_embedding_levels_ex() function in lib/fribidi-bidi.c of GNU FriBidi through 1.0.7 allows an attacker to cause a denial of service or possibly execute arbitrary code by delivering crafted text content to a user, when this content is then rendered by an application that uses FriBidi for text layout calculations. Examples include any GNOME or GTK+ based application that uses Pango for text layout, as this internally uses FriBidi for bidirectional text layout. For example, the attacker can construct a crafted text file to be opened in GEdit, or a crafted IRC message to be viewed in HexChat.", "A heap-based buffer overflow vulnerability was found in GNU FriBidi, an implementation of the Unicode Bidirectional Algorithm (bidi). When the flaw is triggered it's possible to manipulate the heap contents, leading to memory corruption causing a denial of service and to arbitrary code execution. The highest threat from this flaw to both data and system availability."], "name": "CVE-2019-18397", "public_date": "2019-11-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-18397\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-18397"], "threat_severity": "Important"}

{}