CVE-2026-5265
Estado: Pendiente de análisisMedia (6.5)—
When generating an ICMP Destination Unreachable or Packet Too Big response, the handler copies a portion of the original packet into the ICMP error body using the IP header's self-declared total length (ip_tot_len for IPv4, ip6_plen for IPv6) without validating it against the actual packet buffer size. A VM can send a short packet with an inflated IP length field that triggers an ICMP error (e.g., by hitting a reject ACL), causing ovn-controller to read heap memory beyond the valid packet data and include it in the ICMP response sent back to the VM.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
- Puntuación base: 6.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.66%
- Percentil entre todas las CVEs puntuadas: 50
- Fecha de la puntuación: 3/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-130
Referencias
- https://access.redhat.com/errata/RHSA-2026:11694
- https://access.redhat.com/errata/RHSA-2026:11695
- https://access.redhat.com/errata/RHSA-2026:11696
- https://access.redhat.com/errata/RHSA-2026:11698
- https://access.redhat.com/errata/RHSA-2026:11700
- https://access.redhat.com/errata/RHSA-2026:11701
- https://access.redhat.com/errata/RHSA-2026:11702
- https://access.redhat.com/errata/RHSA-2026:22110
- https://access.redhat.com/errata/RHSA-2026:22111
- https://access.redhat.com/security/cve/CVE-2026-5265
- https://bugzilla.redhat.com/show_bug.cgi?id=2453458
- http://www.openwall.com/lists/oss-security/2026/04/20/2
- http://www.openwall.com/lists/oss-security/2026/04/20/4
JSON original (NVD)
Mostrar
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{
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],
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
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"source": "secalert@redhat.com",
"description": [
{
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"value": "CWE-130"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "When generating an ICMP Destination Unreachable or Packet Too Big response, the handler copies a portion of the original packet into the ICMP error body using the IP header's self-declared total length (ip_tot_len for IPv4, ip6_plen for IPv6) without validating it against the actual packet buffer size. A VM can send a short packet with an inflated IP length field that triggers an ICMP error (e.g., by hitting a reject ACL), causing ovn-controller to read heap memory beyond the valid packet data and include it in the ICMP response sent back to the VM."
}
],
"lastModified": "2026-06-17T10:58:42.660",
"sourceIdentifier": "secalert@redhat.com"
}