Description (CNA)
A flaw was found in libvirt. An unprivileged local user could exploit an integer overflow vulnerability in the NodeGetFreePages RPC handler. This flaw allows crafted values to bypass a size check, leading to an undersized memory buffer. Subsequently, real NUMA node data can overwrite this buffer. This heap buffer overflow can corrupt the root libvirt daemon's memory, potentially leading to a denial of service or local privilege escalation.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Red Hat Enterprise Linux 10 | unaffected 0:11.10.0-12.9.el10_2 before * |
| Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Support | unaffected 0:10.10.0-8.12.el10_0 before * |
| Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Support | unaffected 0:4.5.0-36.el7_9.7 before * |
| Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | unaffected 8040020260916092751.522a0ee4 before * |
| Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | unaffected 8040020260916092751.522a0ee4 before * |
| Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | unaffected 8060020260910092451.ad008a3a before * |
| Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | unaffected 8060020260910092451.ad008a3a before * |
| Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Service | unaffected 8080020260910092120.63b34585 before * |
| Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | unaffected 8080020260910092120.63b34585 before * |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected 0:11.10.0-12.7.el9_8 before * |
| Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | unaffected 0:9.0.0-10.17.el9_2 before * |
| Red Hat / Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | unaffected 0:10.0.0-6.24.el9_4 before * |
| Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Support | unaffected 0:10.10.0-7.19.el9_6 before * |
| Red Hat / Red Hat Enterprise Linux 6 | unaffected |
| Red Hat / Red Hat Enterprise Linux 8 | affected |
| Red Hat / Red Hat Enterprise Linux for NVIDIA 26 | unknown |
CWE
CWE-190
References
- https://access.redhat.com/errata/RHSA-2026:68509
- https://access.redhat.com/errata/RHSA-2026:68510
- https://access.redhat.com/errata/RHSA-2026:68511
- https://access.redhat.com/errata/RHSA-2026:68513
- https://access.redhat.com/errata/RHSA-2026:68514
- https://access.redhat.com/errata/RHSA-2026:68594
- https://access.redhat.com/errata/RHSA-2026:69114
- https://access.redhat.com/errata/RHSA-2026:69131
- https://access.redhat.com/errata/RHSA-2026:74424
- https://access.redhat.com/errata/RHSA-2026:75583
- https://access.redhat.com/security/cve/CVE-2026-18917
- https://bugzilla.redhat.com/show_bug.cgi?id=2520161
ADP enrichment
No English description supplied.
No references supplied.