Описание
Security update for openvswitch
This update for openvswitch fixes the following issues
Update ovn to 25.03.3:
- CVE-2026-5265: heap over-read in ICMP error response generation (bsc#1262498).
- CVE-2026-5367: heap over-read in OVN DHCPv6 client ID processing (bsc#1262499).
Список пакетов
SUSE Linux Enterprise Module for Package Hub 15 SP7
SUSE Linux Enterprise Module for Server Applications 15 SP7
Ссылки
- Link for SUSE-SU-2026:2463-1
- E-Mail link for SUSE-SU-2026:2463-1
- SUSE Security Ratings
- SUSE Bug 1262498
- SUSE Bug 1262499
- SUSE CVE CVE-2026-5265 page
- SUSE CVE CVE-2026-5367 page
Описание
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.
Затронутые продукты
Ссылки
- CVE-2026-5265
- SUSE Bug 1262498
Описание
A flaw was found in OVN (Open Virtual Network). A remote attacker, by sending crafted DHCPv6 (Dynamic Host Configuration Protocol for IPv6) SOLICIT packets with an inflated Client ID length, could cause the ovn-controller to read beyond the bounds of a packet. This out-of-bounds read can lead to the disclosure of sensitive information stored in heap memory, which is then returned to the attacker's virtual machine port.
Затронутые продукты
Ссылки
- CVE-2026-5367
- SUSE Bug 1262499