SB2026010653 - SUSE update for qemu

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2024-6505)

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the virtio-net device in QEMU when enabling the RSS feature on the virtio-net network card. A remote privileged user can trigger an out-of-bounds read error and perform a denial of service (DoS) attack.

2) Use-after-free (CVE-ID: CVE-2025-11234)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error in websocket handshake code in /io/channel-websock.c. A remote attacker with network access to the VNC WebSocket port can perform a denial of service during the WebSocket handshake prior to the VNC client authentication.

3) Stack-based buffer overflow (CVE-ID: CVE-2025-12464)

The vulnerability allows a local user to perform a denial of service attack.

The vulnerability exists due to a boundary error within the e1000_receive_iov() function. A local user or malicious guest can send a short frame in loopback mode, trigger a stack-based buffer overflow and perform a denial of service attack. 

Remediation

Install update from vendor's website.

References

• https://www.suse.com/support/update/announcement/2026/suse-su-20260039-1/