CVE-2026-78002: falha de alta gravidade em Red Hat Enterprise Linux 10
Rsyslog: rsyslog: denial of service via heap buffer overflow in rainerscript replace() function
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.5epss 1.1%
A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript `replace()` function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory corruption. Successful exploitation can lead to a denial of service (DoS) for the affected system.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Produtos afetados
Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red 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 8.8 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 9.2 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9.4 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat · Red Hat Update Infrastructure 5CVEs relacionadas — Red Hat Enterprise Linux 10
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Referências
https://access.redhat.com/errata/RHSA-2026:69540https://access.redhat.com/errata/RHSA-2026:69541https://access.redhat.com/errata/RHSA-2026:71603https://access.redhat.com/errata/RHSA-2026:80817https://access.redhat.com/errata/RHSA-2026:81321https://access.redhat.com/errata/RHSA-2026:84576https://access.redhat.com/errata/RHSA-2026:86124https://access.redhat.com/errata/RHSA-2026:87408https://access.redhat.com/errata/RHSA-2026:90349https://access.redhat.com/errata/RHSA-2026:91582https://access.redhat.com/errata/RHSA-2026:95573https://access.redhat.com/security/cve/CVE-2026-78002