{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-49176", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2025-06-03T05:38:02.947Z", "datePublished": "2025-06-17T14:49:49.143Z", "dateUpdated": "2025-09-25T18:04:16.312Z"}, "containers": {"cna": {"title": "Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in big requests extension", "metrics": [{"other": {"content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A flaw was found in the Big Requests extension. 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deployment, applicability to widespread installation base, or stability."}], "descriptions": [{"lang": "en", "value": "A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-190", "description": "Integer Overflow or Wraparound"}]}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2025-09-25T18:04:16.312Z"}, "x_redhatCweChain": "CWE-190: Integer Overflow or Wraparound"}}, "cveMetadata": {"cveId": "CVE-2025-49176", "state": "PUBLISHED", "dateUpdated": "2025-09-25T18:04:16.312Z", "dateReserved": "2025-06-03T05:38:02.947Z", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "datePublished": "2025-06-17T14:49:49.143Z", "assignerShortName": "redhat"}, "dataVersion": "5.1"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check."}, {"lang": "es", "value": "Se detect\u00f3 una falla en la extensi\u00f3n Big Requests. La longitud de la solicitud se multiplica por 4 antes de compararla con el tama\u00f1o m\u00e1ximo permitido, lo que podr\u00eda causar un desbordamiento de enteros y omitir la comprobaci\u00f3n de tama\u00f1o."}], "id": "CVE-2025-49176", "lastModified": "2025-07-07T14:15:24.503", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.5, "source": "secalert@redhat.com", "type": "Secondary"}]}, "published": "2025-06-17T15:15:45.470", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10258"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10342"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10343"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10344"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10346"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10347"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10348"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10349"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10350"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10351"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10352"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10355"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10356"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10360"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10370"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10374"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10375"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10376"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10377"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10378"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10381"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:10410"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:9303"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:9304"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:9305"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:9306"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:9392"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:9964"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2025-49176"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2369954"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2025/06/18/2"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"acknowledgement": "Red Hat would like to thank Julian Suleder and Nils Emmerich for reporting this issue.", "affected_release": [{"advisory": "RHSA-2025:9304", "cpe": "cpe:/o:redhat:enterprise_linux:10.0", "package": "xorg-x11-server-Xwayland-0:24.1.5-4.el10_0", "product_name": "Red Hat Enterprise Linux 10", "release_date": "2025-06-23T00:00:00Z"}, {"advisory": "RHSA-2025:10377", "cpe": "cpe:/o:redhat:rhel_els:6", "package": "tigervnc-0:1.1.0-25.el6_10.1", "product_name": "Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10376", "cpe": "cpe:/o:redhat:rhel_aus:7.7", "package": "tigervnc-0:1.8.0-17.el7_7.1", "product_name": "Red Hat Enterprise Linux 7.7 Advanced Update Support", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10360", "cpe": "cpe:/o:redhat:rhel_els:7", "package": "xorg-x11-server-0:1.20.4-32.el7_9", "product_name": "Red Hat Enterprise Linux 7 Extended Lifecycle Support", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10375", "cpe": "cpe:/o:redhat:rhel_els:7", "package": "tigervnc-0:1.8.0-36.el7_9.2", "product_name": "Red Hat Enterprise Linux 7 Extended Lifecycle Support", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:9305", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "xorg-x11-server-0:1.20.11-26.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2025-06-23T00:00:00Z"}, {"advisory": "RHSA-2025:9305", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "xorg-x11-server-Xwayland-0:21.1.3-18.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2025-06-23T00:00:00Z"}, {"advisory": "RHSA-2025:9392", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "tigervnc-0:1.15.0-7.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2025-06-23T00:00:00Z"}, {"advisory": "RHSA-2025:10378", "cpe": "cpe:/a:redhat:rhel_aus:8.2", "package": "tigervnc-0:1.9.0-15.el8_2.14", "product_name": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:9964", "cpe": "cpe:/a:redhat:rhel_aus:8.2", "package": "xorg-x11-server-0:1.20.6-4.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "release_date": "2025-06-30T00:00:00Z"}, {"advisory": "RHSA-2025:10342", "cpe": "cpe:/a:redhat:rhel_aus:8.4", "package": "xorg-x11-server-0:1.20.10-2.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10349", "cpe": "cpe:/a:redhat:rhel_aus:8.4", "package": "tigervnc-0:1.11.0-8.el8_4.13", "product_name": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10342", "cpe": "cpe:/a:redhat:rhel_eus_long_life:8.4", "package": "xorg-x11-server-0:1.20.10-2.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Extended Update Support EXTENSION", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10349", "cpe": "cpe:/a:redhat:rhel_eus_long_life:8.4", "package": "tigervnc-0:1.11.0-8.el8_4.13", "product_name": "Red Hat Enterprise Linux 8.4 Extended Update Support EXTENSION", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10344", "cpe": "cpe:/a:redhat:rhel_aus:8.6", "package": "tigervnc-0:1.12.0-6.el8_6.14", "product_name": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10346", "cpe": "cpe:/a:redhat:rhel_aus:8.6", "package": "xorg-x11-server-Xwayland-0:21.1.3-2.el8_6.4", "product_name": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10356", "cpe": "cpe:/a:redhat:rhel_aus:8.6", "package": "xorg-x11-server-0:1.20.11-5.el8_6.3", "product_name": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10344", "cpe": "cpe:/a:redhat:rhel_eus_long_life:8.6", "package": "tigervnc-0:1.12.0-6.el8_6.14", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support EXTENSION", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10346", "cpe": "cpe:/a:redhat:rhel_eus_long_life:8.6", "package": "xorg-x11-server-Xwayland-0:21.1.3-2.el8_6.4", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support EXTENSION", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10344", "cpe": "cpe:/a:redhat:rhel_tus:8.6", "package": "tigervnc-0:1.12.0-6.el8_6.14", "product_name": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10346", "cpe": "cpe:/a:redhat:rhel_tus:8.6", "package": "xorg-x11-server-Xwayland-0:21.1.3-2.el8_6.4", "product_name": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10356", "cpe": "cpe:/a:redhat:rhel_tus:8.6", "package": "xorg-x11-server-0:1.20.11-5.el8_6.3", "product_name": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10344", "cpe": "cpe:/a:redhat:rhel_e4s:8.6", "package": "tigervnc-0:1.12.0-6.el8_6.14", "product_name": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10346", "cpe": "cpe:/a:redhat:rhel_e4s:8.6", "package": "xorg-x11-server-Xwayland-0:21.1.3-2.el8_6.4", "product_name": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10356", "cpe": "cpe:/a:redhat:rhel_e4s:8.6", "package": "xorg-x11-server-0:1.20.11-5.el8_6.3", "product_name": "Red Hat 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Linux 8.8 Telecommunications Update Service", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10370", "cpe": "cpe:/a:redhat:rhel_tus:8.8", "package": "xorg-x11-server-Xwayland-0:21.1.3-11.el8_8", "product_name": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10343", "cpe": "cpe:/a:redhat:rhel_e4s:8.8", "package": "xorg-x11-server-0:1.20.11-16.el8_8", "product_name": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10355", "cpe": "cpe:/a:redhat:rhel_e4s:8.8", "package": "tigervnc-0:1.12.0-15.el8_8.14", "product_name": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10370", "cpe": "cpe:/a:redhat:rhel_e4s:8.8", "package": "xorg-x11-server-Xwayland-0:21.1.3-11.el8_8", "product_name": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:9303", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "xorg-x11-server-0:1.20.11-31.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-06-23T00:00:00Z"}, {"advisory": "RHSA-2025:9303", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "xorg-x11-server-Xwayland-0:23.2.7-4.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-06-23T00:00:00Z"}, {"advisory": "RHSA-2025:9306", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "tigervnc-0:1.14.1-8.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-06-23T00:00:00Z"}, {"advisory": "RHSA-2025:10348", "cpe": "cpe:/a:redhat:rhel_e4s:9.0", "package": "xorg-x11-server-Xwayland-0:21.1.3-3.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10352", "cpe": "cpe:/a:redhat:rhel_e4s:9.0", "package": "xorg-x11-server-0:1.20.11-11.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10381", "cpe": "cpe:/a:redhat:rhel_e4s:9.0", "package": "tigervnc-0:1.11.0-22.el9_0.15", "product_name": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10347", "cpe": "cpe:/a:redhat:rhel_e4s:9.2", "package": "xorg-x11-server-Xwayland-0:21.1.3-8.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10350", "cpe": "cpe:/a:redhat:rhel_e4s:9.2", "package": "xorg-x11-server-0:1.20.11-18.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10410", "cpe": "cpe:/a:redhat:rhel_e4s:9.2", "package": "tigervnc-0:1.12.0-14.el9_2.12", "product_name": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10258", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "xorg-x11-server-Xwayland-0:22.1.9-6.el9_4", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2025-07-02T00:00:00Z"}, {"advisory": "RHSA-2025:10351", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "xorg-x11-server-0:1.20.11-26.el9_4", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2025-07-07T00:00:00Z"}, {"advisory": "RHSA-2025:10374", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "tigervnc-0:1.13.1-8.el9_4.7", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2025-07-07T00:00:00Z"}], "bugzilla": {"description": "xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in Big Requests Extension", "id": "2369954", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2369954"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H", "status": "verified"}, "cwe": "CWE-190", "details": ["A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check.", "A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2025-49176", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "xorg-x11-server", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2025-06-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-49176\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-49176"], "statement": "This vulnerability is rated as an important severity because this flaw exists in the Big Requests extension of the X.Org X server, where the length of client requests is multiplied by 4 before validating against the maximum allowed size. This computation can cause an integer overflow when a sufficiently large length value is provided, resulting in a wrapped-around total length that appears valid to the size check logic, leading to out-of-bounds memory access, successful exploitation can cause denial of service by crashing the server and may permit memory corruption, compromising system integrity and availability.", "threat_severity": "Important"}

{}