| ID |
CVE-2026-5265
|
| Sažetak |
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. |
| Reference |
|
| CVSS |
| Base: | 6.5 |
| Impact: | 4.2 |
| Exploitability: | 2.2 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| NETWORK |
HIGH |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| LOW |
NONE |
HIGH |
|
| CVSS vektor |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H |
| Zadnje važnije ažuriranje |
24-04-2026 - 14:39 |
| Objavljeno |
24-04-2026 - 13:16 |
