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CVE-2025-49176

Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in big requests extension

CVSS 7.3 HIGHEPSS 0.3%CWE-190
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Produtos afetados
Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSIONRed Hat · Red Hat Enterprise Linux 7.7 Advanced Update SupportRed Hat · Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat · Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRed Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 8.8 Extended Update Support Long-Life Add-OnRed Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9.4 Extended Update SupportX.Org · xwayland

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Referências
https://access.redhat.com/errata/RHSA-2025:10258https://access.redhat.com/errata/RHSA-2025:10342https://access.redhat.com/errata/RHSA-2025:10343https://access.redhat.com/errata/RHSA-2025:10344https://access.redhat.com/errata/RHSA-2025:10346https://access.redhat.com/errata/RHSA-2025:10347https://access.redhat.com/errata/RHSA-2025:10348https://access.redhat.com/errata/RHSA-2025:10349https://access.redhat.com/errata/RHSA-2025:10350https://access.redhat.com/errata/RHSA-2025:10351https://access.redhat.com/errata/RHSA-2025:10352https://access.redhat.com/errata/RHSA-2025:10355