Advisory severityMedium6.4Red Hat Linux Updated

Medium [CVE-2018-1059 +1] Guest-triggered out-of-bounds walk via vhost indirect descriptor length TOCTOU

This medium-severity Red Hat Linux advisory covers CVE-2026-93683 and CVE-2018-1059; related products: Fast Datapath for RHEL 10, Fast Datapath for RHEL 8, Fast Datapath for RHEL 9.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations. This bulletin covers 2 CVEs; its score, affected versions and guidance may apply to different issues within that bulletin.

CVE-2026-93683 Source published Oct 15, 2026Source updated Oct 15, 2026

VulniPulse record published Oct 15, 2026Record updated Oct 20, 2026

CVE-2018-1059 CVE-2026-93683

Monitor future Red Hat Linux CVEs from your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.

Matching phone alertsOptional email delivery

Get CVE alerts See app features

Summary

Guest-triggered out-of-bounds walk via vhost indirect descriptor length TOCTOU. Red Hat rates this moderate (CVSS 6.4).

Weakness: CWE-367.

Affected products named by the advisory: Fast Datapath for RHEL 10; Fast Datapath for RHEL 8; Fast Datapath for RHEL 9; Red Hat Enterprise Linux 10; and 5 more.

Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4; Red Hat OpenStack Platform 13 (Queens); and 1 more.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · high-confidence parse· fetched 1 day ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.

Official advisory · high-confidence parse· fetched 1 day ago·verify at source

Mitigation checklist

Recommended fix / mitigation

No runtime mitigation. QEMU indirect_desc=off does not help: libvhost honours VRING_DESC_F_INDIRECT anyway. Do not expose vhost-user to untrusted guests.

Official advisory · high-confidence parse· fetched 1 day ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Red Hat Security Data APIofficial
Official vendor source used to discover this advisory; it remains the authority for affected products and remediation. Discovered from the machine-readable feed https://access.redhat.com/hydra/rest/securitydata/cve.json; this link opens the Red Hat Linux advisory index instead of the raw feed document.
Red Hat Linux
Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Red Hat Linux
CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

Discussion(0)

No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.